HeightPressure (Torr)Pressure (Pa)
0760101'325
100751100'125
20074298'925
50071695'459
80069192'126
100067589'993
140064285'593
200059679'460
300052670'128
500040553'996
1000019826'398
20000415'466

Surface% Reflection
Ocean3.5% - 26%
Rainforest8%
Pine forest9%
Deciduous trees13%
Barren field15%
Swampland9% - 14%
Urban areas, northern hemisphere7%
Urban areas, tropic12%
Desert25%
Desert25%
Clouds, thick75%
Clouds, thin40%
Antartica80%
Snow fresh85%
Ice35%
Sand20%
Grassy field20%
Water10%

MediumChange (kg/year)
Atmosphere3.10E+12
Vegetation1.00E+12
Ocean2.00E+12
Agro2.00E+11
Industry-6.30E+12

MediumContent (kg)
Atmosphere7.30E+14
Vegetation2.00E+15
Ocean's3.80E+16

Flowkg/year
Vegetation > Atmosphere1.19E+14
Atmosphere > Vegetation1.20E+14
Ocean > Atmosphere8.80E+13
Atmosphere > Ocean9.00E+13
Industry > Atmosphere6.30E+12
Agro > Atmosphere1.70E+12
Atmosphere > Agro1.90E+12

ElementAbundance (percentage of total number of atoms)Abundance (percentage of total mass)
Hydrogen91.271.0
Helium8.727.1
Oxygen0.0780.97
Carbon0.0430.40
Nitrogen0.00880.096
Silicon0.00450.099
Magnesium0.00380.076
Neon0.00350.058
Iron0.00300.14
Sulfur0.00150.040

ElementApproximate % by weight
Oxygen46.6
Silicon27.7
Aluminum8.1
Iron5.0
Calcium3.6
Sodium2.8
Potassium2.6
Magnesium2.1
All others1.5

LiquidCompressibility, k (Pa-1 x 10-11)
Carbon disulfide93
Ethyl alcohol110
Glycerine21
Mercury3.7
Water45.8

MaterialCurie temperature (K)
Fe1043
Co1388
Ni627
Gd293
Dy85
CrBr337
Au2MnAl200
Cu2MnAl630
Cu2MnIn500
EuO77
EuS16.5
MnAs318
MnBi670
GdCl32.2
Fe2B1015
MnB578

Gases at STPDensity (kg/m3)
Air1.293
Ammonia gas0.77
Carbon dioxide1.98
Carbon monoxide1.25
Helium0.178
Hydrogen0.09
Nitrogen1.26
Oxygen1.43

LiquidTemperatureDensity (kg/m3)
1,1,2-Trichlorotrifluoroethane25 C1564.00
1,2,4-Trichlorobenzene20 C1454.00
1,4-Dioxane20 C1033.60
2-Methoxyethanol20 C964.60
Acetic Acid25 C1049.10
Acetone25 C784.58
Acetonitrile20 C782.20
Alcohol, ethyl25 C785.06
Alcohol, methyl25 C786.51
Alcohol, propyl25 C799.96
Ammonia (aqua)25 C823.35
Analine25 C1018.93
Automobile oils15 C880-940
Beer (varies)10 C1010
Benzene25 C873.81
Benzil25 C1079.64
Brine15 C1230
Bromine25 C3120.40
Butyric Acid20 C959
Butane25 C599.09
n-Butyl Acetate20 C879.60
n-Butyl Alcohol20 C809.70
n-Butyl Chloride20 C886.20
Caproic acid25 C921.06
Carbolic acid15 C956.30
Carbon disulfide25 C1260.97
Carbon tetrachloride25 C1584.39
Carene25 C856.99
Castor oil25 C956.14
Chloride25 C1559.88
Chlorobenzene20 C1105.80
Chloroform20 C1489.20
Chloroform25 C1464.73
Citric acid25 C1659.51
Coconut oil15 C924.27
Cotton seed oil15 C925.87
Cresol25 C1023.58
Creosote15 C1066.83
Crude oil, 48 API60 F790
Crude oil, 40 API60 F825
Crude oil, 35.6 API60 F847
Crude oil, 32.6 API60 F862
Crude oil, California60 F915
Crude oil, Mexican60 F973
Crude oil, Texas60 F873
Cumene25 C860.19
Cyclohexane20 C778.50
Cyclopentane20 C745.40
Decane25 C726.28
Diesel fuel oil 20 to 6015 C820-950
Diethyl ether20 C714
o-Dichlorobenzene20 C1305.80
Dichloromethane20 C1326.00
Diethylene glycol15 C1120
Dichloromethane20 C1326.00
Dimethyl Acetamide20 C941.50
N,N-Dimethylformamide20 C948.70
Dimethyl Sulfoxide20 C1100.40
Dodecane25 C754.63
Ethane-89 C570.26
Ether25 C72.72
Ethylamine16 C680.78
Ethyl Acetate20 C900.60
Ethyl Alcohol20 C789.20
Ethyl Ether20 C713.30
Ethylene Dichloride20 C1253.00
Ethylene glycol25 C1096.78
Fluorine refrigerant R-1225 C1310.95
Formaldehyde45 C812.14
Formic acid 10% concentration20 C1025
Formic acid 80% concentration20 C1221
Freon - 1121 C1490
Freon - 2121 C1370
Fuel oil60 F890.13
Furan25 C1416.03
Furforol25 C1154.93
Gasoline, natural60 F711.22
Gasoline, Vehicle60 F737.22
Gas oils60 F890
Glucose60 F1350-1440
Glycerin25 C1259.37
Glyme20 C869.10
Glycerol25 C1126.10
Heptane25 C679.50
Hexane25 C654.83
Hexanol25 C810.53
Hexene25 C671.17
Hydrazine25 C794.52
Iodine25 C4927.28
Ionene25 C932.27
Isobutyl Alcohol20 C801.60
Iso-Octane20 C691.90
Isopropyl Alcohol20 C785.40
Isopropyl Myristate20 C853.20
Kerosene60 F817.15
Linolenic Acid25 C898.64
Linseed oil25 C929.07
Methane-164 C464.54
Methanol20 C791.30
Methyl Isoamyl Ketone20 C888.00
Methyl Isobutyl Ketone20 C800.80
Methyl n-Propyl Ketone20 C808.20
Methyl t-Butyl Ether20 C740.50
N-Methylpyrrolidone20 C1030.40
Methyl Ethyl Ketone (MEK)20 C804.90
MEK25 C802.52
Milk15 C1020-1050
Naphtha15 C664.77
Naphtha, wood25 C959.51
Napthalene25 C820.15
Ocimene25 C797.72
Octane15 C917.86
Olive oil20 C800-920
Oxygen (liquid)-183 C1140
Palmitic Acid25 C850.58
Pentane20 C626.20
Pentane25 C624.82
Petroleum Ether20 C640.00
Petrol, natural60 F711.22
Petrol, Vehicle60 F737.22
Phenol25 C1072.28
Phosgene0 C1377.59
Phytadiene25 C823.35
Pinene25 C856.99
Propane-40 C583.07
Propane, R-29025 C493.53
Propanol25 C804.13
Propylene Carbonate20 C1200.60
Propylene25 C514.35
n-Propyl Alcohol20 C803.70
Propylene glycol25 C965.27
Pyridine25 C978.73
Pyrrole25 C965.91
Rape seed oil20 C920
Resorcinol25 C1268.66
Rosin oil15 C980
Sabiname25 C812.14
Sea water25 C1025.18
Silane25 C717.63
Sodium Hydroxide (caustic soda)15 C1250
Sorbaldehyde25 C895.43
Soya bean oil15 C924-928
Stearic Acid25 C890.63
Sulphuric Acid 95% conc.20 C1839
Sugar solution 68 brix15 C1338
Sunflower oil20 C920
Styrene25 C903.44
Terpinene25 C847.38
Tetrahydrofuran20 C888.00
Toluene20 C866.90
Toluene25 C862.27
Triethylamine20 C727.60
Trifluoroacetic Acid20 C1489.00
Turpentine25 C868.20
Water, pure (more temperatures)4 C1000.00
Water, sea77 F1021.98
Whale oil15 C925
o-Xylene20 C880.20

MaterialDensity (kg/m3)
Alfalfa, ground256
Alum, lumpy881
Alum, pulverized753
Alumina961
Aluminum, oxide1522
Ammonium Nitrate730
Ammonium Sulphate - dry1130
Ammonium Sulphate - wet1290
Andesite, solid2771
Antimony, cast6696
Apples641
Arsenic5671
Asbestos - shredded320-400
Asbestos rock1600
Ashes - wet730-890
Ashes - dry570-650
Asphalt, crushed721
Babbitt7272
Bagasse120
Bakelite, solid1362
Baking powder721
Barium3780
Bark, wood refuse240
Barley609
Barite, crushed2883
Basalt, broken1954
Basalt, solid3011
Bauxite, crushed1281
Beans, castor577
Beans, cocoa593
Beans, navy801
Beans, soy721
Beeswax961
Beets721
Bentonite593
Bicarbonate of soda689
Bismuth9787
Bones, pulverized881
Borax, fine849
Bran256
Brewers grain432
Brick, common red1922
Brick, fire clay2403
Brick, silica2050
Brick, chrome2803
Brick, magnesia2563
Buckwheat657
Butter865
Cadmium8650
Calcium carbide1201
Caliche1442
Carbon, solid2146
Carbon, powdered80
Cardboard689
Cement - clinker1290-1540
Cement, Portland1506
Cement, mortar2162
Cement, slurry1442
Chalk, solid2499
Chalk, lumpy1442
Chalk, fine1121
Charcoal208
Chloroform1522
Chocolate, powder641
Chromic acid, flake1201
Chromium6856
Chromium ore2162
Cinders, furnace913
Cinders, Coal, ash641
Clay, dry excavated1089
Clay, wet excavated1826
Clay, dry lump1073
Clay, fire1362
Clay, wet lump1602
Clay, compacted1746
Clover seed769
Coal, Anthracite, solid1506
Coal, Anthracite, broken1105
Coal, Bituminous, solid1346
Coal, Bituminous, broken833
Cobaltite ( cobolt ore )6295
Coconut, meal513
Coconut, shredded352
Coffee, fresh beans561
Coffee, roast beans432
Coke570-650
Concrete, Asphalt2243
Concrete, Gravel2403
Concrete, Limestone with Portland2371
Copper ore1940-2590
Copper sulfate, ground3604
Copra, medium size529
Copra, meal, ground641
Copra, expeller cake ground513
Copra, expeller cake chopped465
Cork, solid240
Cork, ground160
Corn, on the cob721
Corn, shelled721
Corn, grits673
Cottonseed, dry, de-linted561
Cottonseed, dry, not de-linted320
Cottonseed, cake, lumpy673
Cottonseed, hulls192
Cottonseed, meal593
Cottonseed, meats641
Cottonwood416
Cryolite1602
Cullet1602
Culm753
Dolomite, solid2899
Dolomite, pulverized737
Dolomite, lumpy1522
Earth, loam, dry, excavated1249
Earth, moist, excavated1442
Earth, wet, excavated1602
Earth, dense2002
Earth, soft loose mud1730
Earth, packed1522
Earth, Fullers, raw673
Emery4005
Ether737
Feldspar, solid2563
Feldspar, pulverized1233
Fertilizer, acid phosphate961
Fish, scrap721
Fish, meal593
Flaxseed, whole721
Flint - silica1390
Flour, wheat593
Flue dust1450-2020
Fluorspar, solid3204
Fluorspar, lumps1602
Fluorspar, pulverized1442
Fullers Earth - raw or burnt570-730
Galena (lead ore)7400-7600
Garbage, household rubbish481
Glass - broken or cullet1290-1940
Glass, window2579
Glue, animal, flaked561
Glue, vegetable, powdered641
Gluten, meal625
Gneiss, bed in place2867
Gneiss, broken1858
Granite, solid2691
Granite, broken1650
Graphite, flake641
Grain - Maize760
Grain - Barley600
Grain - Millet760-800
Grain - Wheat780-800
Gravel, loose, dry1522
Gravel, with sand, natural1922
Gravel, dry 1/4 to 2 inch1682
Gravel, wet 1/4 to 2 inch2002
Gummite (uranium ore)3890-6400
Gypsum, solid2787
Gypsum, broken1290-1600
Gypsum, crushed1602
Gypsum, pulverized1121
Halite (salt), solid2323
Halite (salt), broken1506
Hematite ( iron ore )5095-5205
Hemimorphite (zinc ore)3395-3490
Hydrochloric acid 40%1201
Ice, solid919
Ice, crushed593
Ilmenite2307
Iridium22154
Iron ore - crushed2100-2900
Iron oxide pigment400
Iron Pyrites2400
Iron sulphate - pickling tank - dry1200
Iron sulphate - pickling tank - wet1290
Ivory1842
Kaolin, green crushed1025
Kaolin, pulverized352
Lead, rolled11389
Lead, red3684
Lead, white pigment4085
Leather945
Lignite, dry801
Lime, quick, lump849
Lime, quick, fine1201
Lime, stone, large2691
Lime, stone, lump1538
Lime, hydrated481
Lime, wet or mortar1540
Limonite, solid3796
Limonite, broken2467
Limestone, solid2611
Limestone, broken1554
Limestone, pulverized1394
Linseed, whole753
Linseed, meal513
Locust, dry705
Magnesite, solid3011
Magnesium oxide1940
Magnesium sulphate, crystal1121
Magnetite, solid (iron ore)5046
Magnetite, broken3284
Malachite (copper ore)3750-3960
Malt336
Manganese, solid7609
Manganese oxide1922
Manure400
Marble, solid2563
Marble, broken1570
Marl, wet, excavated2243
Mica, solid2883
Mica, broken1602
Mica - flake520
Mica - powder986
Milk, powdered449
Molybdenum ore1600
Mortar, wet2403
Mud, packed1906
Mud, fluid1730
Nickel ore1600
Nickel, rolled8666
Nickel silver8442
Nitric acid, 91%1506
Oak, red705
Oats432
Oats, rolled304
Oil cake785
Oil, linseed942
Oil, petroleum881
Oyster shells, ground849
Paper, standard1201
Peanuts, shelled641
Peanuts, not shelled272
Peat, dry400
Peat, moist801
Peat, wet1121
Pecan wood753
Phosphate rock, broken1762
Phosphorus2339
Pitch1153
Plaster849
Platinum ore2600
Porcelain2403
Porphyry, solid2547
Porphyry, broken1650
Potash1281
Potassium chloride2002
Potatoes, white769
Pumice, stone641
Pyrite (fool's gold)2400-5015
Quartz, solid2643
Quartz, lump1554
Quartz sand1201
Resin, synthetic, crushed561
Rice, hulled753
Rice, rough577
Rice grits689
Rip-Rap1602
Rock - soft - excavated with shovel1600-1780
Rosin1073
Rubber, caoutchouc945
Rubber, manufactured1522
Rubber, ground scrap481
Rye705
Salt cake1442
Salt, course801
Salt, fine1201
Saltpeter1201
Sand, wet1922
Sand, wet, packed2082
Sand, dry1602
Sand, loose1442
Sand, rammed1682
Sand, water filled1922
Sand with Gravel, dry1650
Sand with Gravel, wet2020
Sandstone, solid2323
Sandstone, broken1370-1450
Sawdust210
Sewage, sludge721
Shale, solid2675
Shale, broken1586
Shells - oyster800
Sinter1600-2180
Slag, solid2114
Slag, broken1762
Slag, crushed, 1/4 inch1185
Slag, furn. granulated961
Slate, solid2691
Slate, broken1290-1450
Slate, pulverized1362
Smithsonite (zinc ore)4300
Snow, freshly fallen160
Snow, compacted481
Soap, solid801
Soap, chips160
Soap, flakes160
Soap, powdered368
Soapstone talc2400
Soda Ash, heavy1080
Soda Ash, light432
Sodium977
Sodium Aluminate, ground1153
Sodium Nitrate, ground1201
Soy beans, whole753
Starch, powdered561
Stone, crushed1602
Stone (common, generic)2515
Sugar, brown721
Sugar, powdered801
Sugar, granulated849
Sugar, raw cane961
Sugarbeet pulp, dry208
Sugarbeet pulp, wet561
Sugarcane272
Sulphur, solid2002
Sulphur, lump1314
Sulphur, pulverized961
Taconite2803
Talc, solid2691
Talc, broken1746
Tanbark, ground881
Tankage961
Tar1153
Tobacco320
Trap rock, solid2883
Trap rock, broken1746
Turf400
Turpentine865
Walnut, black, dry609
Water, pure1000
Water, sea1026
Wheat769
Wheat, cracked673
Wood chips - dry240-520
Wool1314
Zinc oxide400

MetalDensity (kg/m3)
Aluminium - melted2560-2640
Aluminium bronze (3-10% Al)7700-8700
Aluminium foil2700-2750
Antifriction metal9130-10600
Beryllium1840
Beryllium copper8100-8250
Brass - casting8400-8700
Brass - rolled and drawn8430-8730
Bronze - lead7700-8700
Bronze - phosphorous8780-8920
Bronze (8-14% Sn)7400-8900
Cast iron6800-7800
Cobolt8746
Copper8930
Delta metal8600
Electrum8400-8900
Gold19320
Iron7850
Lead11340
Light alloy based on Al2560-2800
Light alloy based on Mg1760-1870
Magnesium1738
Mercury13593
Molybdenum10188
Monel8360-8840
Nickel8800
Nickel silver8400-8900
Platinum21400
Plutonium19800
Silver10490
Steel - rolled7850
Steel - stainless7480-8000
Tin7280
Titanium4500
Tungsten19600
Uranium18900
Vanadium5494
White metal7100
Zinc7135

WoodDensity (kg/m3)
Afromosia705
Apple660-830
Ash, black540
Ash, white670
Aspen420
Balsa170
Bamboo300-400
Birch (British)670
Cedar, red380
Cypress510
Douglas Fir530
Ebony960-1120
Elm (English)600
Elm (Wych)690
Elm (Rock)815
Iroko655
Larch590
Lignum Vitae1280-1370
Mahogany (Honduras)545
Mahogany (African)495-850
Maple755
Oak590-930
Pine (Oregon)530
Pine (Parana)560
Pine (Canadian)350-560
Pine (Red)370-660
Redwood (American)450
Redwood (European)510
Spruce (Canadian)450
Spruce (Sitka)450
Sycamore590
Teak630-720
Willow420

MoleculeFrequency (10^13 Hz)
H-H13
N-N7.0
C-O6.4
N-O5.7
O-O4.7

MoleculeDissociation Energy(eV)Equilibrium Separation (nm) (Bond length)
NaCl4.260.236
NaF4.990.193
NaBr3.80.250
NaI3.10.271
NaH2.080.189
LiCl4.860.202
LiH2.470.239
LiI3.670.238
KCl4.430.267
KBr3.970.282
RbF5.120.227
RbCl4.640.279
CsI3.570.337

MaterialTemperature (°C)Dielectric Constant
Vacuum201
Glass205-10
Mica203-6
Mylar203.1
Neoprene206.70
Plexiglas203.40
Polyethylene202.25
Polyvinyl chloride203.18
Teflon202.1
Germanium2016
Strontiun titanate20310
Titanium dioxide (rutile)20173 perp
86 para
Water2080.4
Glycerin2042.5
Liquid ammonia(-78°C)2025
Benzene202.284
Air(1 atm)201.00059
Air(100 atm)201.0548

ObjectDrag Coefficient
Wing0.02
Ball with v > 54 m/s0.3
Ball with v < 27 m/s0.5
Sphere0.2 .. 0.4
Turbulent flow for Re > 3x10^50.2
Non-Turbulent flow for Re < 3x10^50.47
Surface orthogonal to flow1.1
Open half sphere, opening against the stream1.3 ... 1.6
Open half sphere, round part against the stream0.35
Aerodynamic body0.055
Car0.5

ElementElectron Affinities (eV)
H-0.76
Li-0.62
B-0.28
C-1.27
N0
O-1.43
F-3.41
Na-0.55
Al-0.46
Si-1.39
P-0.75
S-2.08
Cl-3.62
K-0.50
Ga-0.31
Ge-1.25
As-0.80
Se-2.02
Br-3.37
Rb-0.49
In-0.31
Sn-1.26
Sb-1.05
Te-1.97
I-3.06
Cs-0.47
Tl-0.31
Pb-1.14
Bi-1.14
Po-1.87
At-2.80

Element Fermi EnergyeV Fermi Temperaturex 10^4 K Fermi Velocityx 10^6 m/s
Li4.745.511.29
Na3.243.771.07
K2.122.460.86
Rb1.852.150.81
Cs1.591.840.75
Cu7.008.161.57
Ag5.496.381.39
Au5.536.421.40
Be14.316.62.25
Mg7.088.231.58
Ca4.695.441.28
Sr3.934.571.18
Ba3.644.231.13
Nb5.326.181.37
Fe11.113.01.98
Mn10.912.71.96
Zn9.4711.01.83
Cd7.478.681.62
Hg7.138.291.58
Al11.713.62.03
Ga10.412.11.92
In8.6310.01.74
Tl8.159.461.69
Sn10.211.81.90
Pb9.4711.01.83
Bi9.9011.51.87
Sb10.912.71.96

InterfaceStatic frictionKinetic friction, dryKinetic friction, lubricantsKinetic friction, water
Iron - Iron0.150.10.01...
Iron - Wood0.5 ... 0.60.4 ... 0.50.03 ... 0.080.25
Wood - Wood0.650.30.1...
Leather - Grey cast iron0.560.280.120.28
Leather - Wood0.470.27......
Iron - Ice.........0.014
Car tire - Plaster...0.5...0.2
Car tire - Bitumen...0.30.15...
Wood - Wood0.650.30.1...
Leather - Grey cast iron0.560.280.120.28
Leather - Wood0.470.27......
Iron - Ice.........0.014
Car tire - Plaster...0.5...0.2
Car tire - Bitumen...0.30.15...
Iron - Ice.........0.014
Car tire - Plaster...0.5...0.2
Car tire - Bitumen...0.30.15...

Gas ConstantVolume Heat Capacity cV (J/K)cV/R
Ar12.51.50
He12.51.50
CO20.72.49
H220.42.45
HCl21.42.57
N220.62.49
NO20.92.51
O221.12.54
Cl224.82.98
CO228.23.40
CS240.94.92
H2S25.43.06
N2O28.53.42
SO231.33.76

MetarialTemperature (°C)Km-1 (x 10-5)
Ammonia20-0.26
Bismuth20-16.6
Mercury20-2.9
Silver20-2.6
Carbon (diamond)20-2.1
Carbon (graphite)20-1.6
Lead20-1.8
Sodium chloride20-1.4
Copper20-1.0
Water20-0.91

MaterialTemperature (°C)Km-1 (x 10-5)
Iron oxide (FeO)20720
Iron amonium alum2066
Uranium2040
Platinum2026
Tungsten206.8
Cesium205.1
Aluminum202.2
Lithium201.4
Magnesium201.2
Sodium200.72
Oxygen gas200.19

SubstanceMelting point KMelting point °CHeat of fusion (103 J/kg)
Helium3.5-269.655.23
Hydrogen13.84-259.3158.6
Nitrogen63.18-209.9725.5
Oxygen54.36-218.7913.8
Ethyl alcohol159-114104.2
Mercury234-3911.8
Water273.150.00334
Sulfur39211938.1
Lead600.5327.324.5
Antimony903.65630.50165
Silver1233.95960.8088.3
Gold1336.151063.0064.5
Copper13561083134

1a2a3b 4b5b6b7bVIII1b2b3a4a5a6a7a0
1H
2He
3Li
4Be
5B
6C
7N
8O
9F
10Ne
11Na
12Mg
13Al
14Si
15P
16S
17Cl
18Ar
19K
20Ca
21Sc
22Ti
23V
24Cr
25Mn
26Fe
27Co
28Ni
29Cu
30Zn
31Ga
32Ge
33As
34Se
35Br
36Kr
37Rb
38Sr
39Y
40Zr
41Nb
42Mo
43Tc
44Ru
45Rh
46Pd
47Ag
48Cd
49In
50Sn
51Sb
52Te
53I
54Xe
55Cs
56Ba
57La
*
72Hf
73Ta
74W
75Re
76Os
77Ir
78Pt
79Au
80Hg
81Tl
82Pb
83Bi
84Po
85At
86Rn
87Fr
88Ra
89Ac
+
104Rf
105Db
106Sg
107Bh
108Hs
109Mt
110Uun
111Uuu
112Uub
114Uuq
* Lanthanides
58Ce
59Pr
60Nd
61Pm
62Sm
63Eu
64Gd
65Tb
66Dy
67Ho
68Er
69Tm
70Yb
71Lu
+ Actinides
90Th
91Pa
92U
93Np
94Pu
95Am
96Cm
97Bk
98Cf
99Es
100Fm
101Md
102No
103Lr

ElementWork Function(eV)
Aluminum4.08
Beryllium5.0
Cadmium4.07
Calcium2.9
Carbon4.81
Cesium2.1
Cobalt5.0
Copper4.7
Gold5.1
Iron4.5
Lead4.14
Magnesium3.68
Mercury4.5
Nickel5.01
Niobium4.3
Potassium2.3
Platinum6.35
Selenium5.11
Silver4.73
Sodium2.28
Uranium3.6
Zinc4.3

RadionuclideHalf Life
3H4500 ± 8 d
18F1.82951 ± 0.00034 h
22Na950.97 ± 0.15 d
24Na14.9512 ± 0.0032 h
32P14.263 ± 0.003 d
44Ti22154 ± 456 d
46Sc83.831 ± 0.066 d
51Cr27.7010 ± 0.0012 d
54Mn312.028 ± 0.034 d
57Co272.11 ± 0.26 d
58Co70.77 ± 0.11 d
59Fe44.5074 ± 0.0072 d
60Co1925.20 ± 0.25 d
62Cu9.6725 ± 0.0080 min
65Zn244.164 ± 0.099 d
67Ga3.26154 ± 0.00054 d
75Se119.809 ± 0.066 d
85Kr3935.7 ± 1.2 d
85Sr64.8530 ± 0.0081 d
88Y106.626 ± 0.044 d
99Mo65.9239 ± 0.0058 h
99mTc6.00718 ± 0.00087 h
99mTc6.0123 ± 0.0032 h
103Ru39.310 ± 0.044 d
109Cd463.26 ± 0.63 d
110mAg249.950 ± 0.024 d
111In2.80477 ± 0.00053 d
113Sn115.079 ± 0.080 d
117mSn14.00 ± 0.05 d
123I13.2235 ± 0.0019 h
125I59.49 ± 0.13 d
125Sb1007.56 ± 0.10 d
127Xe36.3446 ± 0.0028 d
131I8.0197 ± 0.0022 d
131mXe11.934 ± 0.021 d
133Ba3854.7 ± 2.8 d
133Xe5.24747 ± 0.00045 d
134Cs753.88 ± 0.15 d
137Cs11018.3 ± 9.5 d
139Ce137.734 ± 0.091 d
140Ba12.7527 ± 0.0023 d
140La40.293 ± 0.012 h
141Ce32.510 ± 0.024 d
144Ce284.534 ± 0.032 d
152Eu4947.2 ± 1.1 d
153Gd239.472 ± 0.069 d
153Sm46.2853 ± 0.0014 h
154Eu3145.2 ± 1.1 d
155Eu1739.06 ± 0.45 d
166Ho26.794 ± 0.023 h
169Yb32.0147 ± 0.0093 d
177Lu6.64 ± 0.01 d
181W121.095 ± 0.064 d
186Re89.248 ± 0.069 h
188Re17.001 ± 0.022 h
188W69.783 ± 0.048 d
192Ir73.810 ± 0.019 d
195Au186.098 ± 0.047 d
198Au2.69517 ± 0.00021 d
201Tl3.0456 ± 0.0015 d
202Tl12.466 ± 0.081 d
203Hg46.619 ± 0.027 d
203Pb51.923 ± 0.037 h
207Bi11523. ± 15. d
228Th698.60 ± 0.36 d


Optical Glass

Mediumn (red)n (yellow)n (blue)n (violet)
Borosilicate crown (BSC)1.497761.500001.505291.50937
Borosilicate crown2 (BSC-2)1.514621.517001.522641.52708
Light barium crown (LBC-1)1.538281.541001.547351.55249
Telescope flint (TF)1.527621.530501.537901.54379
Dense barium flint (DBF)1.666501.670501.680591.68882
Light flint (LF)1.572081.576001.586061.59441
Dense flint-2 (DF-2)1.612161.617001.629011.63923
Dense flint-4 (DF-4)1.643571.649001.662701.67456
Extra dense flint (EDF-3)1.713031.720001.737801.75324
Fused quartz (SiO2)...1.4585......
Crystal quartz (O ray) (SiO2)...1.5443......
Fluorite (CaF2)...1.4338......



Other Material

MaterialIndex
Vacuum1.00000
Air at STP1.00029
Ice1.31
Water at 20 C1.33
Acetone1.36
Ethyl alcohol1.36
Sugar solution(30%)1.38
Fluorite1.433
Fused quartz1.46
Glycerine1.473
Sugar solution (80%)1.49
Typical crown glass1.52
Crown glasses1.52-1.62
Spectacle crown, C-11.523
Sodium chloride1.54
Polystyrene1.55-1.59
Carbon disulfide1.63
Flint glasses1.57-1.75
Heavy flint glass1.65
Extra dense flint, EDF-31.7200
Methylene iodide1.74
Sapphire1.77
Rare earth flint1.7-1.84
Lanthanum flint1.82-1.98
Arsenic trisulfide glass2.04
Diamond2.417

Material Resistivity r (ohm m)Temperature (°C)Temperature coefficient per degreeC Conductivity s x 107 /Wm
Silver201.59 x10^-80.00616.29
Copper201.68 x10^-80.00685.95
Aluminum202.65 x10^-80.004293.77
Tungsten205.6 x10^-80.00451.79
Iron209.71 x10^-80.006511.03
Platinum2010.6 x10^-80.0039270.943
Manganin2048.2 x10^-80.0000020.207
Lead2022 x10^-8-0.45
Mercury2098 x10^-80.00090.10
Nichrome (Ni,Fe,Cr alloy)20100 x10^-80.00040.10
Constantan2049 x10^-8-0.20
Carbon (graphite)203-60 x10^-5-0.0005-
Germanium201-500 x10^-3-0.05-
Silicon200.1-60--0.07-
Glass201-10000 x10^9--
Quartz (fused)207.5 x10^17--
Hard rubber201-100 x10^13--

Temperature (°C)Pressure (mmHg)Density (g/m3)
-102.152.36
04.584.85
56.546.8
109.219.4
119.8410.01
1210.5210.66
1311.2311.35
1411.9912.07
1512.7912.83
2017.5417.3
2523.7623
3031.830.4
3747.0744
4055.351.1
60149.4130.5
80355.1293.8
95634505
96658523
97682541
98707560
99733579
100760598
101788618
1101074.6-
1201489-
200116597840

PlanetDistance to Sun (Gm)Periode (years)Excentricity of the orbitMass in Earth masses
Mercure580.240.210.053
Venus1080.620.010.8149
Earth15010.021
Mars2281.880.090.107
Jupiter77811.860.05318
Saturn142829.460.0695.22
Uranus287284.020.0514.55
Neptun4498164.780.0117.23
Pluto5910248.40.250.9

SubstanceTemperature (°C)c in J/gm KMolar C J/mol K
Aluminum200.90024.3
Bismuth200.12325.7
Copper200.38624.5
Brass200.380-
Gold200.12625.6
Lead200.12826.4
Silver200.23324.9
Tungsten200.13424.8
Zinc200.38725.2
Mercury200.14028.3
Alcohol(ethyl)202.4111
Water204.18675.2
Ice (-10 C)202.0536.9
Granite200.790-
Glass200.84-

Speed of SoundTemperature (°C)m/s
Gas
Air, dry0331
Air, dry20343
Carbon Dioxide0259
Helium0965
Hydrogen01260
Oxygen0316
Liquid
Carbon tetrachloride20926
Chloroform201004
Ethanol201162
Glycerol201904
Kerosene201324
Mercury201450
Methyl alcohol201143
Water151400
Water201482
Sea water201533
Solid
Aluminum205100
Brass204700
Concrete203100
Copper205010
Diamond2012000
Glass205500
Gold203240
Iron205130
Lead201200
Lucite202680
Pyrex glass205640
Rubber201600
Steel205000
Wood (soft-along the fibre)203400

MaterialThermal conductivity (cal/sec)/(cm^2 C/cm)Thermal conductivity (W/m K)
Air at 0 C0.0000570.024
Aluminum0.50205.0
Asbestos0.0004-
Brass-109.0
Brick,insulating-0.15
Brick,red-0.6
Concrete0.0020.8
Cork board0.000110.04
Copper0.99385.0
Fiberglass0.000150.04
Glass,ordinary0.00250.8
Helium at 0 C0.00030.14
Hydrogen at 0 C0.00040.14
Ice0.0051.6
Iron0.163-
Lead0.08334.7
Mercury-8.3
Oxygen-0.023
Rock wool-0.04
Silver1.01406.0
Snow (dry)0.00026-
Steel-50.2
Styrofoam-0.01
Water at 20 C0.0014-
Wood0.00010.12-0.04
Wool felt0.00010.04

ElementDebye temperature (K)Thermal conductivity at 300K (W/cmK)
Ag2254.29
Al4282.37
Ar92-
As2820.50
Au1653.17
Ba110-
Be14400.27
Bi1190.08
C22301.29
Ca230-
Cd2090.97
Ce-0.11
Cr6300.94
Co4451.00
Cs380.36
Cu3434.01
Dy2100.11
Er-0.14
Fe4700.80
Ga3200.41
Gd2000.11
Ge3740.6
Hf2520.23
Hg71.9-
Ho-0.16
In1080.82
Ir4201.47
K911.02
Kr72-
La1420.14
Li3440.85
Lu2100.16
Mg4001.56
Mn4100.08
Mo4501.38
Na1581.41
Nb2750.54
Nd-0.16
Ne75-
Ni4500.91
Np-0.06
Os5000.88
Rb560.58
Re4300.48
Rh4801.50
Rn64-
Ru6001.17
Pb1050.35
Pd2740.72
Pr-0.13
Pt2400.72
Pu-0.07
Sb2110.24
Sc3600.16
Se900.02
Si6451.48
Sm-0.13
Sn2000.67
Sr147-
Ta2400.58
Tb-0.11
Tc-0.51
Te1530.02
Th1630.54
Ti4200.22
Tl78.50.46
Tm-0.17
U2070.28
V3800.31
W4001.74
Xe64-
Y2800.17
Yb1200.35
Zn3271.16
Zr2910.23

MaterialTemperature (°C)Fractional expansion per degree C x10^-6
Glass, ordinary209
Glass, pyrex204
Quartz, fused200.59
Aluminum2024
Brass2019
Copper2017
Iron2012
Steel2013
Platinum209
Tungsten204.3
Gold2014
Silver2018

Substance (form)Enthalpy DfH (kJ)Gibbs DfG (kJ)Entropy (J/K)Specific heat CP(J/K)Volume V(cm3)
Al (s)0028.3324.359.99
Al2SiO5 (kyanite)-2594.29-2443.8883.81121.7144.09
Al2SiO5 (andalusite)-2590.27-2442.6693.22122.7251.53
Al2SiO5 (sillimanite)-2587.76-2440.9996.11124.5249.90
Ar (g)00154.8420.79-
C (graphite)005.748.535.30
C (diamond)1.8952.9002.386.113.42
CH4 (g)-74.81-50.72186.2635.31-
C2H6 (g)-84.68-32.82229.6052.63-
C3H8 (g)-103.85-23.49269.9173.5-
C2H5OH (l)-277.69-174.78160.7111.4658.4
C6H12O6 (glucose)-1268-910212115-
CO (g)-110.53-137.17197.6729.14-
CO2 (g)-393.51-394.36213.7437.11-
H2CO3 (aq)-699.65-623.08187.4--
HCO3- (aq)-691.99-586.7791.2--
Ca2+ (aq)-542.83-553.58-53.1--
CaCO3 (calcite)-1206.9-1128.892.981.8836.93
CaCO3 (aragonite)-1207.1-1127.888.781.2534.15
CaCl2 (s)-795.8-748.1104.672.5951.6
Cl2 (g)00223.0733.91-
Cl- (aq)-167.16-131.2356.5-136.417.3
Cu (s)0033.15024.447.12
Fe (s)0027.2825.107.11
H2 (g)00130.6828.82-
H (g)217.97203.25114.7120.78-
H+ (aq)0000-
H2O (l)-285.83-237.1369.9175.2918.068
H2O (g)-241.82-228.57188.8333.58-
He (g)00126.1520.79-
Hg (l)0076.0227.9814.81
N2 (g)00191.6129.12-
NH3 (g)-46.11-16.45192.4535.06-
Na+(aq)-240.12-261.9159.046.4-1.2
NaCl (s)-411.15-384.1472.1350.5027.01
NaAlSi3O8 (albite)-3935.1-3711.5207.40205.10100.07
NaAlSi2O6 (jadeite)-3030.9-2852.1133.5160.060.40
Ne (g)00146.3320.79-
O2 (g)00205.1429.38-
O2 (aq)-11.716.4110.9--
OH- (aq)-229.99-157.24-10.75-148.5-
Pb (s)0064.8126.4418.3
PbO2(s)-277.4-217.3368.664.64-
PbSO4(s)-920.0-813.0148.5103.2-
SO42- (aq)-909.27-744.5320.1-293-
HSO4- (aq)-887.34-755.91131.8-84-
SiO2 (a quartz)-910.94-856.6441.8444.4322.69
H4SiO4(aq)-1449.36-1307.67215.13468.98-

MaterialTemperature KPressure (10^5 Pa)
Hydrogen13.840.0704
Deuterium18.630.171
Neon24.570.432
Oxygen54.360.00152
Nitrogen63.180.125
Ammonia195.400.0607
Sulfur dioxide197.680.00167
Carbon dioxide216.555.17
Water273.160.00610

Gasa (Pa m3)b(m3/mol)
Helium3.46x10^-323.71x10^-6
Neon2.12x10^-217.10x10^-6
Hydrogen2.45x10^-226.61x10^-6
Carbon dioxide3.96x10^-142.69x10^-6
Water vapor5.47x10^-130.52x10^-6

GasesViscosity (Poise)
Air0.00018
Helium0.00019
Methane0.00020
Nitrogen0.00018
Oxygen0.00020
Water vapor (steam)0.00013

LiquidsViscosity (Poise)
Acetone0.0032
Alcohol(ethyl)0.012
Blood (whole)0.04
Blood plasma0.015
Gasoline0.006
Glycerine14.9
Mercury0.016
Oil (light)1.1
Oil (heavy)6.6
Water0.01

Material Young's modulus (E)GPa
Rubber (small strain)0.01-0.1
Low density polyethylene0.2
Polypropylene1.5-2
Polyethylene terephthalate2-2.5
Polystyrene3-3.5
Nylon2-4
Oak wood (along grain)11
High-strength concrete (under compression)30
Magnesium metal (Mg)45
Aluminium alloy69
Glass (all types)72
Brass and bronze103-124
Titanium (Ti)105-120
Carbon fiber reinforced plastic (unidirectional, along grain)150
Wrought iron and steel190-210
Tungsten (W)400-410
Silicon carbide (SiC)450
Tungsten carbide (WC)450-650
Single Carbon nanotube1,000+
Diamond (C)1,050-1,200