中文名称:亚硝酸
中文别名:邻氨基亚苄基苯腙
CAS No:7782-77-6
EINECS号：231-963-7
分子式:HNO2
沸点:[320]
密度:1.54±0.1 g/cm3(Predicted)
用途: 制法 Ba(NO 2 ) 2 +H 2 SO 4 →2HNO 2 +BaSO 4 AgNO 2 +HCl→HNO 2 +AgCl↓ 在用冰水充分冷却下，将Ba(NO 2 ) 2 (或AgNO 2 )溶于水中，加入稀硫酸(或稀盐酸)。过滤除去析出的BaSO 4 (或AgCl)沉淀，亚硝酸留在溶液中。若溶液中有盐存在也无关系时，在低于0℃下，用盐酸酸化亚硝酸钠即可。
安全说明:Mutation data reported. Flammable by chemical reaction; a powerful oxidizer. Explodes on contact with phosphorus trichloride. Reacts violently with PH3 and PCl3. Reactions with 1-amino-5-nitrophenol, ammonium decahydroborate(2−), hydrazine (product is hydrogen azide) may give explosive products. Incompatible with anilines (e.g., 4-bromoaniline, 2-chloroaniline, 3-chloroaniline, 2-nitroaniline, 3-nitroaniline, 4-nitroaniline, aniline), semicarbazone, silver nitrate. When heated to decomposition it emits highly toxic fumes of NOx. See also NITRIC OXIDE.