Wednesday, December 17, 2014

Acetone In Our Life

Acetone can be used for preparing the organic glass monomer, bisphenol A, two acetone alcohol, glycol, methyl isobutyl ketone, methyl isobutyl carbinol, isophorone, isophorone, chloroform, iodoform and other important organic chemical raw materials. Acetone is regarded as an excellent solvent in the aspects of paint, acetate fiber spinning process and refining industry dewaxing.

Acetone is always with stimulation. In other words, acetone is a hazardous substances. We should pay more attention while using acetone. At first, you must wear a pair of rubber glove and antistatic clothing. If it is exceed the standard concentration in air, people must wear filtration mask or half mask. What’s more, people could not smoke in working site. Certainly you had better avoid to contact with the acetone again and again, and even for a long time.

Many people think it is difficult to make the water separate with the acetone. In fact, it could be come true. Now there is a permeable membrane that can separate them under room temperature completely. Of course, some people like to use salting out to achieve the goal. Acetone solubility in the saturated brine is smaller than in pure water. But it seems that waste of salt.

Tuesday, December 2, 2014

Use Epichlorohydrin More Carefully

Epichlorohydrin is an important kind of raw materials in organic synthesis and intermediates. It is applied to producing epoxy resin. And it also could be regarded as diluent for epoxy resin. In fact, making glycerol, nitroglycerin, glass steel, methacrylic acid glyceride, epichlorohydrin rubber, glycidyl derivatives, surface active agent and electrical insulation products all need epichlorohydrin.

Epichlorohydrin steam has a strong irritant to the respiratory tract. It will damage your lung, liver and kidney if you have been inhalation the epichlorohydrin steam for many times or long time. Certainly if there are epichlorohydrin with high concentration, it may make your central nervous system restrain and even lead to death. Don’t let the epichlorohydrin liquid contact with skin directly. That will burn your skin. During a long time, people inhalation of a small amount without any known. That is easy to cause neurasthenic syndrome and peripheral neuropathy.

If the epichlorohydrin has been leaked, you should evacuate the workers in contaminated area as soon as possible. And then bringing them to safety area. Don’t allow irrelevant personnel into the contaminated area. At the same time, cut off the fire source. What’s more, you can not contact with the leakage.