成人国产午夜福利_日韩久久久久久免费视频_国产日韩欧美国产成人精品高清在线观看99_热の综合热の国产热の潮在线_99在线精品免费视频_无遮无挡免费真人裸交视频_亚洲欧美日韩大陆_色综亚洲日本w在线_黄色三级毛片久久免费_国模无水印一区二区三区

Colorless crystal with saline taste and ammonia odor.

Pharmaceutical intermediate, mainly used in the production of piperazine phosphate, piperazine citrate, bucinnazine, and rifampicin

Saturated vapor pressure (kPa): 30.3/111℃
Flash point (℃): 107(O.C)
Solubility: Soluble in water, methyl alcohol, ethyl alcohol, slightly soluble in benzene and ethyl ether.
Chemical properties: Combustion can give off toxic nitric oxide gas. Corrosive.

Health hazard: Contact, inhalation or percutaneous absorption can cause weakness, blurred vision, ataxia, etc.

Skin contact: Take off the polluted clothing immediately, rinse with plenty of flow and clear water for at least 15 minutes, seek medical advice.
Eye contact: Rinse with plenty of clear and<

Harmful combustion products: Carbon monoxide, carbon dioxide and nitric oxide.
Fire extinguishing agent: spray water, foam, dry powder, carbon dioxide, sand.

Emergency treatment: The contaminated areas should be isolated, cut off the source of ignition. The emergency treatment personnel shall wear dust mark, acid and alkali resistant clothes.

Operation: The operator should be specially trained, follow the operating instruction. The operator should wear self-inhalation filter type dust respirator, chemical safety glasses, rubber acid and