中文名:联苯胺,英文名:Benzidine,CAS:92-87-5,化学式:C12H12N2,分子量:184.24,密度:1.25,熔点:127-128°C,沸点:402°C,闪点:11°C,水溶性:Sparingly soluble. <0.1 g/100 mL at 22 ºC,蒸汽压:Based on the specific vapor density value of 6.36 (Sims et al., 1988), the vapor pressure wascalculated to be 0.83 at 20 °C.,折射率:1. ...

联苯胺的性质与用途 联苯胺，英文名为Benzidine，常温常压下为白色或微淡红色结晶性粉末。联苯胺属于有机胺类化合物，具有显著的碱性，在有机合成转化中常用作合成中间体和缚酸剂，常用于药物分子合成与精细化学品生产。

Benzidine (trivial name), also called 1,1'-biphenyl-4,4'-diamine (systematic name), is an organic compound with the formula (C 6 H 4 NH 2) 2. It is an aromatic amine. It is a component of a test for cyanide. Related derivatives are used in the production of dyes. Benzidine has been linked to bladder and pancreatic cancer. [2]

联苯胺 （分子式： (C 6 H 4 NH 2) 2），即“4,4'-二氨基 联苯 ”，是 联苯 衍生物 之一。 白色或微带淡红色的稳定针状结晶或粉末，可燃，露置于空气中光线照射时颜色加深，市售商品常呈褐色或深紫褐色。 难溶于冷水，微溶于热水、 乙醚，易溶于 乙酸 、稀 盐酸 和沸 乙醇。 可以从热水中 重结晶 出联苯胺一水合物。 联苯胺是二元 弱碱，两个p Ka 分别为9.3 × 10 -10 和5.6 × 10 -11。 一般常用的是联苯胺的盐类，工业上多用其 硫酸 盐，而实验室中多用 盐酸盐 和 乙酸 盐。 化学性 …

Benzidine is a manufactured chemical that does not occur naturally. It is a crystalline solid that may be grayish-yellow, white, or reddish-gray. In the environment, benzidine is found in either its "free" state (as an organic base), or as a salt. Benzidine was used to produce dyes for cloth, paper, and leather.

Benzidine is a manufactured chemical that does not occur naturally. It is a crystalline (sandy or sugar-like) solid that may be grayish-yellow, white, or reddish-gray. It will evaporate slowly from water and soil. Its flammability, smell, and taste have not been described.

2019年1月31日 · Learn about benzidine, exposure to which raises your risk of bladder cancer. Benzidine is a manufactured chemical. In the past, benzidine was used to produce dyes or products used in clinical laboratories. However, benzidine has not been sold in the United States since the mid-1970s.

Benzidine is a manufactured chemical that does not occur naturally. It is a crystalline (sandy or sugar-like) solid that may be grayish-yellow, white, or reddish-gray. It will evaporate slowly from water and soil. Its flammability, smell, and taste have not been described.

Benzidine is a crystalline solid that may be grayish-yellow, white, or reddish-gray in color. It is a synthetic chemical with low volatility and is moderately soluble in water and organic solvents. In the past, benzidine was primarily used for the manufacture of dyes, especially azo dyes in the leather, textile, and paper industries.

It contains descriptions and evaluations of toxicological studies and epidemiological investigations and provides conclusions, where possible, on the relevance of toxicity and toxicokinetic data to public health. A glossary and list of acronyms, abbreviations, and symbols can be found at the end of this profile.