久久久久久蜜桃一区二区 欧洲美女大胆潮喷 精品少妇熟女ⅤⅤ免费久久久免费 超碰五月天亚洲论坛

  熱線電話:021-54370211?    

2,2'-Azobis(2-methylpropionitrile)

Of 55 ~ 60 ℃ the condensation reaction temperature, reaction time of 5 h, and then cooling to 25 ~ 30 ℃ for 2 h.
To be cooled to below 10 ℃, began to chlorine, reaction below 20 ℃.
The material ratio is: HCN: acetone: hydrazine = 1L: 1.5036 kg: 0.415 kg.
Using acetone cyanol and hydrazine hydrazine, reoxygenated by liquid chlorine or sodium hypochlorite.
Category flammable solid
Toxicity grade poisoning
Acute toxicity oral - rats LDL0:670 mg/kg;
Oral - mouse LD50:700 mg/kg
Explosive dangerous properties and oxidizing agents;
Easily oxidized, unstable, heated and decomposed, with heptane, acetone
Inflammable hazard properties may be flammable by fire, high temperature and oxidizer;
Pyrolysis gas;
Combustion produces toxic nitrogen oxide smoke
Storage and transportation characteristics.
Separate from the oxidizer
Extinguishing agent water, dry sand, carbon dioxide, foam, 1211 extinguishing agent

@ 2016 ShangHaiYaYu Biomedical co.,ltd TEL:021-54370211、54370255、54370355 FAX:021-54370255

定安县| 蛟河市| 永德县| 黄山市| 徐州市| 东乡县| 济源市| 小金县| 台中市| 西盟| 库尔勒市| 安新县| 长春市| 建昌县| 格尔木市| 加查县| 南昌县| 长治市| 龙陵县| 淮安市| 准格尔旗| 迁安市| 安多县| 青阳县| 会泽县| 浙江省| 雷波县| 萝北县| 镇康县| 济阳县| 青河县| 金溪县| 祥云县| 辽阳县| 江陵县| 襄垣县| 宁海县| 儋州市| 都兰县| 秦皇岛市| 汪清县|