Methyl Chloride Refrigerants

Methyl chloride (CHP) has a boiling point of 10.6F (23.3C). It also has a heat of vaporization at boiling point (l atm) 177,8 Btu/lb. This is a good refrigerant. However, because he will burn under certain conditions in some cities do not allow to use. Easily liquefy and has a relatively high latent heat of combustion. It does not cause corrosion of metal, when it is dry.

However, in the presence of moisture it damages the compressor. Sticky black sludge is formed when the excess of moisture in combination with a chemical. Methyl chloride is well mixed with oil. It will operate on a positive pressure at the level of 10F (23C). Vapors must be uncomfortable in the face of proportion to the following numbers:

Carbon dioxide 100
Methyl chloride 70
Ammonia-2
Sulphur dioxide-1

This means that methylene chloride 35 times safer than ammonia and 70 times safer than sulphur dioxide.

Methyl chloride is difficult to detect with the nose or eyes. It is not irritating effect. Therefore some producers add 1% of the amount of acrolein, colorless liquid with a pungent smell, as a warning agent. It is obtained by the distillation of fats.