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Archive for March 2, 2012

FIRE EXTINGUISHER WITH EXPLOSIVE CARTRIDGE

In fire extinguishers with explosive cartridge the extinguishing gas is held under pressure by a thin breakable seal. Upon activation the explosive cartridge ejects a projectile which breaks the seal thus releasing the gas for fire fighting. For sea transport fire extinguishers fitted with explosive cartridges are assigned with UN number UN 1044 Class 2.2 … Continue reading »

CHLOROFORM

Chloroform is mainly used these days in production of chlorodifluoromethane. Below properties are observed in WHO publication Physical Properties: Boiling point: 62°C Melting point: -64°C Relative density (water = 1): 1.48 Solubility in water, g/100 ml at 20°C: 0.8 Vapour pressure, kPa at 20°C: 21.2 Relative vapour density (air = 1): 4.12 Relative density of … Continue reading »

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