Benzidine dihydrochloride 531-85-1

[1,1′-Biphenyl]-4,4′-diamine hydrochloride (1:2)

[1,1′-Biphenyl]-4,4′-diamine,hydrochloride (1:2);Benzidine,dihydrochloride;[1,1′-Biphenyl]-4,4′-diamine,dihydrochloride;[1,1′-Biphenyl]-4,4′-diamine hydrochloride (1:2)

531-85-1

C12H12N2.2ClH

InChIKey=RUAXWVDEYJEWRY-UHFFFAOYSA-N

257.16

256.05300

208-519-6

LVU06XHC39

DTXSID7020138

2921590090

Inorganic Salts

52.04000

5.28440

Benzidine dihydrochloride is a white crystalline powder. (NTP, 1992)

1.156g/cm3

≥300 °C

>402ºC

203.5ºC

H2O: 0.1-0.5 g/100 mL at 23.5 ºC

Reference value: (benzidine) Oral-rat LD50: 309 mg/kg; Oral-mouse LD50; 214 mg/kg

Flammable; emits toxic hydrogen chloride and nitrogen oxide gas when heated

This chemical may be sensitive to prolonged exposure to light and air. Slightly soluble in water.

Salts, Acidic

Acidic organic/inorganic salts, such as BENZIDINE DIHYDROCHLORIDE, are generally soluble in water. The resulting solutions contain moderate to high concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.