A colorless,flammable,liquefied gas.(一种无色、可燃、液化气体)
Formula(分子式): CH2F2
Molecular weight(分子量): 52.02
Boiling point(沸点): -51.65℃,-60.97°F;
Melting point(融点): -137℃,-214.6°F.
Vapor Pressure(蒸汽压): 1600Kpa(21.1℃);232Psia(70°F)
Specific Volume(比容): 0.45m3/kg(21.1℃,101.325KPa)
7.2ft3/lb(70°F,14.696psia)
Lower Flammable Limit(可燃性含量): 14%
Upper Flammable Limit(可燃性含量): 31%
Threshold Limit Value(人体的容许浓度): 1000ppm
UN Number(UN号码): UN1954
DOT Classification(DOT类别): 2.1(flammable Gas)(可燃气体)
DOT Label(DOT标签): FLAMMABLE GAS(可燃气体)
Cylinder Connection(钢瓶接口): CGA/DISS/JIS--350/724/W22-14L
Grsde(级别) 4N
Purity(纯度) 99.99%
Guaranteed Specification(保证规格)
Impurity(非组分) |
Specification(标准) |
Oxygen(氧) |
≤10 ppmv |
Nitrogen(氮) |
≤50 ppmv |
Carbon Monoxide(一氧化碳) |
≤20 ppmv |
Carbon Dioxide(二氧化碳) |
≤10 ppmv |
Water(水) |
≤5 ppmv |
Other Organics(其他有机物) |
≤100 ppmv |
Methane(甲烷) |
≤2 ppmv |
Cylinder Size(liter)钢瓶体积(升) |
Content(Kg,lbs)气含量(公斤,磅) |
43.8 |
29.1,64 |