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- 化学性质
白色无臭晶体。有苦味。暴露于空气和光变成灰色。慢慢加热开始升华。熔点133-134℃,沸点309℃,相对密度1.453,折射率1.561。溶于水、乙醇、乙醚,微溶于苯、氯仿、二硫化碳。暴露在空气中时,水溶液颜色变暗,而其苛性碱溶液则变色较快。
熔点 43-47 °C(lit.)
沸点 309 °C
密度 1.112 g/mL at 25 °C(lit.)
vapor density 4.4 (vs air)
vapor pressure 10 mm Hg ( 167.7 °C)
折射率 n20/D 1.387
闪点 >230 °F
水溶解性 400 g/L (25 ºC)
敏感性 Light Sensitive
Merck 14,8000
BRN 907431
质量标准
AR / CP
用途
1 用于制备金属胶状溶液,皮革着色,毛皮、毛发等的染色,蚀刻等;并可用作电影胶片的显影剂、红外线照相热敏剂、苯乙烯及聚苯乙烯阻聚聚剂、医药及染料的中间体以及分析用试剂等。焦性没食子酸在气体分析中用作氧的吸收剂,在化妆品方面用于扑粉、护发剂、染发剂等。
2 主要用于生产显影剂、阻聚剂和红外线照相热敏剂,也用作医药和染料的中间体
3 用作分析试剂、还原剂及显影剂
危险性质
危险品标志 Xn
危险类别码 20/21/22-52/53-68
安全说明 22-24/25-61-36/37
危险品运输编号 UN 2811 6.1/PG 3
WGK Germany 3
RTECS UX2800000
F 8
HazardClass 6.1
PackingGroup III
储存方式
密封、避光存储
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