2
Gas properties table ROC-GASES HANDBOOK
HAZARDOUS PROPERTIES
Flammability
THERMOPHYSICAL PROPERTIES
Vapor Specific Heat
Pressure Gravity Critical Critical Specific Capacity Flammable Ignition Threshold
Molecular
at 70?F at 70?F Temp Pressure Volume (Btu/lb. limits in Air Temp., Physiological Limit Value
Weight
Formula State
Product (psig) (1 atm) (癋) (psia) (cf/lb) Mole 癋) (Vol. %) (癋) Properties (ppm)
Dissolved
Acetylene 26.04 635 0.905 97.3 905.3 14.7 10.6 2.5-81 581 SA
C2H2 Gas
Compressed
Air 28.97 -221.1 546.8 13.3 Oxidant
Gas
Liquefied Corrosive
3
Ammonia 17.03 114 0.60 270.4 1639 22.6 8.6 15-28 1204 25
NH Gas and Toxic
Compressed
Argon Ar 39.95 1.38 -188.1 710 9.7 4.97 Inert SA
Gas
Liquefied
3
Arsine 77.95 205 2.69 211.8 957 5.0 4-64 Poison 0.05
AsH Gas
Liquefied
n-Butane 58.12 16 2.08 305.6 550.8 6.4 1.8-8.4 788 Narcotic 800
C 4H10 Gas
Carbon Liquefied
2
44.01 838 1.52 87.8 1071 8.74 8.97 Inert 5,000
CO
Dioxide Gas
Carbon Compressed
CO 28.01 0.97 -220.4 507.4 13.8 6.96 12.5-74 1204 Toxic 50
Monoxide Gas
Liquefied Oxidant and
2
Chlorine 70.91 85.3 2.47 291.2 1118.7 5.4 8.2 1
Cl Gas Toxic
Compressed
2
Deuterium 4.03 0.139 -390.7 241 96.0 6.97 4.9-75 1058 SA
D Gas
Compressed
Diborane 27.67 0.95 62.1 581 0.8-98 100 Highly Toxic 0.05
B2H6 Gas
Liquefied
Ethane 30.07 543 1.047 90.1 708 12.8 12.6 3-12.4 986 SA
C 2H6 Gas
3
HAZARDOUS PROPERTIES
THERMOPHYSICAL PROPERTIES Flammability
Vapor Specific Heat
Pressure Gravity Critical Critical Specific Capacity Flammable Ignition Threshold
Molecular at 70?F at 70?F Temp Pressure Volume (Btu/lb. limits in Air Temp., Physiological Limit Value
Weight (psig) (1 atm) (癋) (psia) (cf/lb) Mole 癋) (Vol. %) (癋) Properties (ppm)
Product Formula State
Ethyl Liquefied 64.52 368.96 764.4 3.8-15.4 1000
C 2H5Cl
Chloride Gas
Compressed
Ethylene 28.05 0.974 49.8 742 13.8 10.4 3.1-32 1009 SA
C 2H4 Gas
Compressed
Helium He 4.003 0.138 -450.3 33.2 96.7 4.98 Inert SA
Gas
Compressed
2
Hydrogen 2.02 0.0696 -399.96 190.8 192 6.89 4-75 1085 SA
H Gas
Hydrogen Liquefied
HCl 36.46 613 1.27 124.6 1200 10.6 6.9 Corrosive 5
Chloride Gas
Hydrogen Liquefied Irritant and
34.08 252 1.189 212.7 1308 11.2 8.2 4.3-45 500 10
H 2S
Sulfide Gas Toxic
Liquefied
Isobutane 58.12 30.8 2.0 275 592.2 6.5 1.8-8.4 864 Anaesthetic SA
C 4H10 Gas
Compressed
Krypton Kr 83.8 2.898 -82.8 798 4.6 5.0 Inert SA
Gas
Compressed
4
Methane 16.04 0.555 -115.8 673 23.7 5-15 1000 SA
CH Gas
Methyl Liquefied 50.49 58.7 1.74 289.6 968 7.6 9.97 10.7-17.4 1170 Toxic 50
CH 3Cl
Chloride Gas
Compressed
Neon Ne 20.18 0.696 -379.8 384.9 19.2 4.97 Inert SA
Gas
Compressed
2
Nitrogen 28.01 0.967 -232.4 492.9 13.8 6.97 Inert SA
N Gas
Nitrous Liquefied 44.01 745 1.53 97.6 1054 8.7 9.2 Oxidant 25
N 2O
Oxide Gas
4
HAZARDOUS PROPERTIES
THERMOPHYSICAL PROPERTIES Flammability
Vapor Specific Heat
Pressure Gravity Critical Critical Specific Capacity Flammable Ignition Threshold
Molecular at 70?F at 70?F Temp Pressure Volume (Btu/lb. limits in Air Temp., Physiological Limit Value
Weight (psig) (1 atm) (癋) (psia) (cf/lb) Mole 癋) (Vol. %) (癋) Properties (ppm)
Product Formula State
Compressed
2
Oxygen 32.0 1.105 -181.1 736.9 12.1 7.03 Oxidant
O Gas
Liquefied Treat as
3
Phosphine 34.0 592.7 1.184 124.3 948 11.4 122 Poison 0.3
PH Gas Pyrophoric
Liquefied
Propane 44.1 109 1.55 206.2 617.4 8.5 17.4 2.1-9.5 874 SA
C 3H8 Gas
Compressed
4
Silane 32.12 1.11 24.8 702.7 12.0 Pyrophoric 0.5
SiH Gas
Sulfur Liquefied Irritant and
2
64.06 34.4 2.26 315 1143 5.9 9.6 2
SO
Dioxide Gas Toxic
Sulfur Liquefied
6
146.05 310 5.11 114 545 2.5 Inert 1000
SF
Hexafluoride Gas
Compressed
Xenon Xe 131.3 4.56 61.9 852.6 2.9 5.02 Inert SA
Gas
5
Materials comptibility table
S C P
A B C M B N K V P T
ol
. .
l r o o u e e i V e
y
u a p n t o l t f
C
S S et
m s p e y p - o l
t t h
Action toward
i s e l l r F n o
yl
e e
e
n r e n
e e materials of
n
u n
l l e construction
Gas m e
Acetylene X O X X X X X X X Gas may form
explosive acetylides
Air X X X X X X X X X X X X X Noncorrosive
Ammonia X O O X X X O O X X Moisture promotes
corrosion
Argon X X X X X X X X X X X X X Noncorrosive
Arsine* X O X X X X X X X Noncorrosive
Butane X X X X X X O X X X O X X Noncorrosive
Carbon Dioxide X X X X X X X X X X X X Moisture promotes
corrosion
Carbon Monoxide X X X X X X O O X X X X
Chlorine O O O X X O O X X X X Moisture promotes
corrosion
Deuterium X X X X X X X X X X X X Noncorrosive
Diborane* X X X X X X X X X Noncorrosive
Ethane X X X X X X O X X X X X Noncorrosive
Ethyl Chloride O O X X X X X X X X X O X
Ethylene X X X X X X O X X X X X Noncorrosive
Helium X X X X X X X X X X X X X Noncorrosive
Hydrogen X X X X X X X X X X X X Noncorrosive
Hydrogen Chloride O O O X X X X X X Moisture promotes
corrosion
Hydrogen Sulfide* O O X X X X Moisture promotes
corrosion
Isobutane X X X X X X O X X X X Noncorrosive
Krypton X X X X X X X X X X X X X Noncorrosive
Methane X X X X X X O X X X X X X Noncorrosive
Methyl Chloride O O X X X O O X X O O X Gas attacks
aluminum
Neon X X X X X X X X X X X X X Noncorrosive
Nitrogen X X X X X X X X X X X X X Noncorrosive
Nitrous Oxide X X X X X X X X X X X Noncorrosive
Oxygen* X X X X O X X X O O X Noncorrosive
Phosphine* O O O X X X X X Noncorrosive
Propane X X X X X O X X X O X X Noncorrosive
Silane* X X X X X X X X X X Noncorrosive
6
S C P
A B C M B N K V P T
ol
. .
l r o o u e e i V e
y
u a p n t o l t f
C
S S Action toward
et
m s p e y p - o l
t t h
materials of
i s e l l r F n o
yl
e e
e
n r e n
e e
construction
n
u n
l l
Gas e
m e
Sulfur Dioxide X X ** X X X X O X X Noncorrosive
Sulfur Hexafluoride X X X X X X X X X X X X X Noncorrosive
Xenon X X X X X X X X X X X X X Noncorrosive
Users should thoroughly familiarize themselves with the specific properties of this gas.
Legend
X - Recommended O -
Not Recommended
** - Not recommended in presence of moisture
Blank indicates unknown
7
US hazardous materials table
Hazard
DOT shipping class/
name division
Product Zone ** ID No. DOT label(s) R.Q.* Cas. No. MSDS
Acetylene Acetylene, 2.1 UN 1001 Flammable Gas 74-86-2 G-2
dissolved
Air Air 2.2 UN 1002 Non flammable (O2) 7782 G-113
Compressed Gas 44-7 (N2)
7727-37-9
Ammonia Ammonia, 2.2 UN 1005 Non flammable 100 lb 7664-41-7 G-11
Anhydrous, Gas
Liquefied
Argon Argon, 2.2 UN 1006 Non flammable 7440-37-1 G-6
Compressed Gas
n-Butane Butane 2.1 UN 1011 Flammable Gas 106-97-8 G-17
1-Butene Butylene 2.1 UN 1012 Flammable Gas 106-98-9 G-18
Carbon Carbon 2.2 UN 1013 Non flammable 124-38-9 G-8
Dioxide Dioxide Gas
Carbon Carbon 2.3 D UN 1016 Poison Gas and 630-08-0 G-112
Monoxide Monoxide Flammable Gas
Chlorine Chlorine 2.3 B UN 1017 Poison Gas 10 lb 7782-50-5 G-23
Deuterium Deuterium 2.1 UN 1957 Flammable Gas 7782-39-0 G-25
Ethane Ethane, 2.1 UN 1035 Flammable Gas 78-84-0 G-31
Compressed
Ethyl Ethyle 2.1 UN 1037 Flammable Gas 100 lb 75-00-3 G-32
Chloride Chloride
Ethylene Ethylene, 2.1 UN 1962 Flammable Gas 74-85-1 G-33
Compressed
Helium Helium, 2.2 UN 1046 Non flammable 7440-59-7 G-5
Compressed Gas
Hydrogen Hydrogen, 2.1 UN 1049 Flammable Gas 1333-74-0 G-4
Compressed
Hydrogen Hydrogen 2.3 C UN 1050 Poison Gas and 7647-0-10 G-40
Chloride Corrosive
Chloride,
Anhydrous
Hydrogen Hydrogen 2.3 B UN 1053 Poison Gas and 100 lbs 7783-06-4 G-94
Sulfide Sulfide, Flammable Gas
Liquefied
Isobutane Isobutane 2.1 UN 1969 Flammable Gas 75-28-5 G-95
Krypton Krypton 2.2 UN 1056 Non flammable 7439-90-9 G-54
Gas
Methane Methane, 2.1 UN 197 Flammable Gas 74-82-8 G-56
Compressed
Methyl Methyl 2.1 UN 1063 Flammable Gas 1 lb 74-87-3 G-96
Chloride Chloride
8
Hazard
DOT shipping class/
Product name division Zone ** ID No. DOT label(s) R.Q.* Cas. No. MSDS
Neon Neon, 2.2 UN 1065 Non flammable 7440-01-9 G-59
Compressed Gas
Nitrogen Nitrogen, 2.2 UN 1066 Non flammable 7727-37-9 G-7
Compressed Gas
Nitrous Nitrous 2.2 UN 1070 Non flammable 10024-97-2 G-3
Oxide*** Oxide, Gas
Compressed
Oxygen Oxygen, 2.2 UN 1072 Non flammable 7782-44-7 G-1
Compressed Gas and Oxidizer
Propane Propane 2.1 UN 1978 Flammable Gas 74-98-6 G-74
Propylene Propylene 2.1 UN 1077 Flammable Gas 115-07-1 G-75
Sulfur Sulfur 2.3 C UN 1079 Poison Gas 7446-09-5 G-79
Dioxide Dioxide,
Liquefied
Sulfur Sulfur 2.2 UN 1080 Non flammable 2551-62-4 G-80
Hexafluoride Hexafluoride Gas
Xenon Xenon 2.2 UN 2036 Non flammable 7440-63-3 G-85
Gas
Reportable Quantity - per HM- 145-F
All 2.3 Poisonous (Toxic) gases require that the cylinder be marked "Inhalation Hazard" and
that the shipping paper description must include "Poison Inhalation Hazard, Zone -- (A,B,C, or D)"
*** The shipping information listed applies to domestic shipments only.
Note: Regulations pertaining to hazardous materials are found in the Code of Federal Regulations Title 49
(CFR) parts 100 - 199.
9
Hazard class/division table
The following information is provided in the context of the Americas region. BOC Gases operates in more than
60 countries worldwide, and corresponding information specific to other regions around the globe is available by
contacting BOC.
Class/Division Material
1 Explosives
2.1 Flammable Gas
2.2 Nonflammable Gas
2.3** Poisonous (Toxic) Gas
3 Flammable Liquids
4.1 Flammable Solid
4.2 Spontaneously Combustible
4.3 Dangerous When Wet
5.1 Oxidizer
5.2 Organic Peroxide
6.1 Poisonous (Toxic) Materials
6.2 Infectious Substances
7 Radioactive Materials
8 Corrosive Materials
9 Miscellaneous Materials
** All 2.3 Poisonous (Toxic) gases require that the cylinder be marked `Inhalation Hazard' and the
shipping paper description must include `Poison Inhalation Hazard, Zone - (A, B, C, or D)'
11
Dew point conversion table
DEW POINT MOISTURE DEW POINT MOISTURE DEW POINT MOISTURE
ppm (v/v) ppm (v/v) ppm (v/v)
(癋) (癈) (癋) (癈) (癋) (癈)
-130 -90 0.1 -74 -59 12.3 -40 -40 128
-120 -84 0.25 -73 -58 13.3 -39 -39 136
-110 -79 0.63 -72 -58 14.3 -38 -39 144
-105 -76 1.00 -71 -57 15.4 -37 -38 153
-104 -76 1.08 -70 -57 16.6 -36 -38 164
-103 -75 1.18 -69 -56 17.9 -35 -37 174
-102 -74 1.29 -68 -56 19.2 -34 -37 185
-101 -74 1.40 -67 -55 20.6 -33 -36 196
-100 -73 1.53 -66 -54 22.1 -32 -36 210
-99 -73 1.66 -65 -54 23.6 -31 -35 222
-98 -72 1.81 -64 -53 25.6 -30 -34 235
-97 -72 1.96 -63 -53 27.5 -29 -34 250
-96 -71 2.15 -62 -52 29.4 -28 -33 265
-95 -71 2.35 -61 -52 31.7 -27 -33 283
-94 -70 2.54 -60 -51 34.0 -26 -32 300
-93 -69 2.76 -59 -51 36.5 -25 -32 317
-92 -69 3.00 -58 -50 39.0 -24 -31 338
-91 -68 3.28 -57 -49 41.8 -23 -31 358
-90 -68 3.53 -56 -49 44.6 -22 -30 378
-89 -67 3.84 -55 -48 48.0 -21 -29 400
-88 -67 4.15 -54 -48 51 -20 -29 422
-87 -66 4.50 -53 -47 55 -19 -28 448
-86 -66 4.78 -52 -47 59 -18 -28 475
-85 -65 5.30 -51 -46 62 -17 -27 500
-84 -64 5.70 -50 -46 67 -16 -27 530
-83 -64 -49 -45 -15 -26 560
6.20 72
-82 -63 6.60 -48 -44 76 -14 -26 590
-81 -63 7.20 -47 -44 82 -13 -25 630
-80 -62 7.80 -46 -43 87 -12 -24 660
-79 -62 -45 -43 92 -11 -24 700
8.40
-78 -61 9.10 -44 -42 98 -10 -23 740
-77 -61 9.80 -43 -42 105 -9 -23 780
-76 -60 10.5 -42 -41 113 -8 -22 820
-75 -59 11.4 -41 -41 119 -7 -22 870
12
Conversion of Parts per Million (ppm) to Percent
1 ppm = 0.0001%
10 ppm = 0.001%
100 ppm = 0.01%
1,000 ppm = 0.1%
10,000 ppm = 1.0%
13
Weight conversion table
Weight Multiply units in left column by proper factor below
grain oz lb ton gram kg metric ton
1 grain 1 - - - 0.0648 - -
1 ounce 437.5 1 0.0625 - 28.35 .02835 -
1 pound 7000 16 1 0.0005 453.6 0.4536 -
1 ton - 32,000 2000 1 - 907.2 0.9072
1 gram 15.43 0.0353 - - 1 0.001 -
1000
1 kilogram - 35.274 2.205 - 1 0.001
-
1 metric ton - 35,274 2205 1.102 1000 1
14
Pressure conversion table
Pressure Multiply units in left column by proper factor below
kPa lb/sq in lb/sq ft int atm kg/cm2 mm Hg at in Hg at ft. water
32篎 32篎 at 39.2篎
1 pound/sq in 6.895 1 144 - 0.0703 51.713 2.0359 2.307
1 pound/sq ft 0.048 0.00694 1 - - 0.3591 0.01414 0.01602
1 int atmosphere 101.3 14.696 2116.2 1 1.0333 760 29.921 33.90
1 kilogram/sq cm 98.07 14.223 2048.1 .9678 1 735.56 28.958 32.81
1 millimeter 0.133 0.0193 2.785 - - 1 0.0394 0.0446
mercury 1 torr
(toricelli)
1 inch mercury 3.387 0.4912 70.73 0.0334 0.0345 25.400 1 1.133
1 foot water 2.984 0.4335 62.42 - 0.0305 22.418 0.8826 1
1 kilopascal (kPa) 1 0.145 20.92 0.0099 0.0102 7.519 0.295 0.3346
15
Volume conversion table
Volume Multiply units in left column by proper factor below
cu in cu ft cu yd cu cm cu meter liter US gal Imp gal
1 cu inch 1 - - 16.387 - 0.0164 - -
1 cu foot 1728 1 0.0370 28.317 0.0283 28.32 7.481 6.229
1 cu yard 46,656 27 1 - 0.7646 764.5 202.0 168.2
1 cu centimeter 0.0610 - - 1 - 0.001 - -
1 cu meter 61,023 35.31 1.308 1,000,000 1 1,000 264.2 220.0
1 liter 61.025 0.0353 - 1,00 0.001 1 0.2642 0.2200
1 U.S. gallon 231 0.1337 - 3,785.4 - 3.785 1 0.8327
1 Imperial gallon 227.4 0.1605 - 4,546.1 - 4.546 1.201 1
16
Density conversion table
Density Multiply units in left column by proper factor below
lb/cu in cu ft lb/gal g/cm3 g/liter
1 pound/cu in 1 1728 231.0 27.68 27,680
1 pound/cu ft - 1 0.1337 0.0160 16.019
1 pound/gal 0.00433 7.481 1 0.1198 119.83
1 gram/cu cm 0.03613 62.43 8.345 1 1,000
1 gram/liter - 0.06243 0.008345 0.001 1
17
Boiling point conversion table
0-400 K with boiling points*
K 癈 癋
-273.16
0.00 -459.69
Helium 4.48 -268.68 -452.1
10. -263.16 -441.69
20. -253.16 -423.69
Hydrogen 20.38 -252.78 -423.
Deuterium 23.6 -249.5 -417.1
-248.0
Tritium 25.1 -414.4
Neon 27.41 -245.75 -410.8
30. -243.16 -405.69
40. -233.16 -387.69
-369.69
50. -233.16
60 -213.16 -351.69
70 -203.16 -333.69
Nitrogen 77.60 -195.56 -320.36
80. -193.16 -315.69
Carbon 81.1 -192.0 -313.6
Monoxide
Fluorine 86.0 -187.0 -304.6
Argon 87.30 -185.86 -302.55
90. -183.16 -297.69
Oxygen 90.20 -182.96 -297.33
100. -173.16 -279.69
110 -163.16 -261.69
Methane 111.7 -161.4 -258.5
Krypton 119.93 -153.23 -243.80
120. -153.16 -243.69
130. -143.16 -225.69
140. -133.16 -207.69
150. -123.16 -189.69
160. -113.16 -171.69
Ozone 161.3 -111.9 -169.6
Xenon 165.10 -108.06 -162.5
Ethylene 169.3 -103.80 -154.8
170. -103.16 -153.69
180. -93.16 -135.69
Nitrous Oxide 183.6 -89.5 -129.1
18
0-400 K with boiling points*
K 癈 癋
Ethane 184.8 -88.3 -126.9
Acetylene 189.1 -84.0 -119.2
190. -83.16 -117.69
Carbon 194.6 -78.5 -109.3
Dioxide**
200. -73.16 -99.69
210 -63.16 -81.69
220. -53.16 -63.69
Propylene 226.1 -47.0 -52.6
230. -43.16 -45.69
Propane 230.8 -42.3 -44.1
Ketene 232.1 -41.0 -41.8
Ammonia 239.8 -33.3 -27.9
240. -33.16 -27.69
Methyl Chloride 249.4 -23.7 -10.7
250. -23.16 -9.69
260. -13.16 +8.31
Isobutane 262.9 -10.2 13.6
Sulfur Dioxide 263.1 -10.0 14.0
270. - 3.16 26.31
Butane 272.5 - 0.6 30.9
Methyl Bromide 277.6 4.5 40.1
280 6.84 44.31
Ethyl Chloride 285.4 12.3 54.1
290. 16.84 62.31
300. 26.84 80.31
310 36.84 98.31
Carbon Disulfide 319.4 46.3 115.3
320. 46.84 116.31
330. 56.84 134.31
340. 66.84 152.31
Carbon 349.9 76.8 170.2
Tetrachloride
350. 76.84 170.31
360. 86.84 188.31
370. 96.84 206.31
380. 106.84 224.31
390. 116.84 242.31
400. 126.84 260.31
Temperature conversion table
Temperature Multiply units in left column by proper factor below
癈 癋 K
1癈 - 1.8(癈) + 32 癈 + 273.15
1癋 (癋 - 32) - (癋 + 459.67)
1.8 1.8
1K K - 273.15 1.8(K) - 479.67 -
Cylinder Description
Sr. Water Cylinder Cylinder Working Dimentions (DXL) Taping
No. Capacity Gas gas Pressure
(Ltr) Capacity Capacity ( psig)
in NM3
in Scft
1 1.6~1.8 10 0.2628 2175 8.9 cm x (40~43) cm 0.707", BS, 314
2 3~4 20~24 0.63072 2175 (10~11)cm x (55~60)cm 1", BS, 341
3 8~10 45~48 1.26 2175 (15~16)cm x (75~81.5)cm 1", BS, 341
4 12~20 90~100 2.628 2175 18.5 cm x 91 cm 1", BS, 341
5 40~43 220~240 6.3072 2175 (21~22)cm x (125~130)cm 1", BS, 341
6 50~55 350 9.2 3200 24 cm x 150 cm 1", BS, 341
7 60~63 480 12.62 3600~4000 27 cm x 160 cm 1", BS, 341
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