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Cyclohexylamine - safety measures
2

Cyclohexylamine - safety measures

Cyclohexylamine - safety measures

(OP)
Can anyone give me more specific information about the hazards with cyclohexylamine? Specifically I would like to know about the safety measures for preventing explosion risks and human protection.

With a small vessel, containing apr. 2 cbm of Cyclohexylamine and only a small dosing pump and some 30 m piping, what should one consider?

RE: Cyclohexylamine - safety measures

First, read the MSDS:
https://fscimage.fishersci.com/msds/97156.htm

Second, what concentration are you dealing with?  
Obviously, more safety precautions are necessary for higher concentrations.  Due to OSHA & EPA and UFC (fire code) requirements, you may need secondary containment, ventilation, a sprinkler system, emergency spill equipment & PPE (personal protective equipment).  However, on the EPA's 'List of Lists,' the RQs for cyclohexylamine, CAS# 108-91-8, are 10,000 and 15,000 pounds, and you are far below this (so you are not considered a major threat).  http://www.epa.gov/ceppo/pubs/title3.pdf
In any case, you should discuss this with your local regulatory agencies.

From the MSDS, the vapor is heavier than air and has an explosive range 1.5 to 9.5%, and the TWA is only 10 ppm, so good ventilation and PPE are probably the very minimum requirements.

RE: Cyclohexylamine - safety measures

I propose you pay a visit to http://www.jtbaker.com/msds/englishhtml/c7117.htm
Besides, it's good to remember that the flash point in air is 28.5oC, and toxic nitrogen oxides are produced on an exothermic and rapid combustion reaction.

RE: Cyclohexylamine - safety measures

Is cyclohexylamine similar to hydroxylamine?

There have been two terrible explosions involving hydroxylamine iver the last few years. It seems to be a very unstable chemical.

Cheers,
John.

RE: Cyclohexylamine - safety measures

My chemical source says that hydroxylamine is quite unstable, it decomposes violently on heating on air in the presence of humidity and CO2 and explodes at above 70oC. In its pure state it is kept below 0oC, for safety reasons. It is mostly found in solutions or as salts.

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