Benzidine suppliers

Properties

Melting point:：

127-128 °C

Boiling point:：

402°C

Density ：

1.25

vapor pressure ：

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.

refractive index ：

1.6266 (estimate)

Flash point:：

11 °C

storage temp. ：

2-8°C

solubility ：

Soluble in ethanol (U.S. EPA, 1985) and ether (1 g/50 mL) (Windholz et al., 1983)

pka：

4.66(at 30℃)

color ：

Grayish-yellow, crystalline powder; white or sltlyreddish crystals, powder

Water Solubility ：

Sparingly soluble. <0.1 g/100 mL at 22 ºC

Merck ：

13,1077

BRN ：

742770

Henry's Law Constant：

(x 10^-11 atmm³/mol): 3.88 at 25 °C (estimated, Howard, 1989)

Exposure limits：

Because it is a carcinogen and readily absorbed through skin, no TLV has been assigned. Exposure should be at an absolute minimum.
Recognized Human Carcinogen (ACGIH); Human Carcinogen (MSHA); Carcinogen (OSHA); Human Sufficient Evidence, Animal Sufficient Evidence (IARC).

Stability:：

Stable. Combustible. Incompatible with strong oxidizing agents.

InChIKey：

HFACYLZERDEVSX-UHFFFAOYSA-N

CAS DataBase Reference：

92-87-5(CAS DataBase Reference)

IARC：

1 (Vol. 29, Sup 7, 99, 100F) 2012

NIST Chemistry Reference：

Benzidine(92-87-5)

EPA Substance Registry System：

Benzidine (92-87-5)

SecurityInformation

Symbol(GHS) ：

GHS07,GHS08,GHS09

Signal word ：

Danger

Hazard statements ：

H302-H350-H410

Precautionary statements ：

P264-P270-P201-P202-P280-P273-P301+P312-P330-P308+P313-P391-P405-P501

Hazard Codes ：

T,N,F,Xn

Risk Statements ：

45-22-50/53-52/53-39/23/24/25-23/24/25-11-36/37/38-20/21/22-51/53-67

Safety Statements ：

53-45-60-61-36/37-16-7-36-26

RIDADR ：

UN 1885

WGK Germany ：

3

RTECS ：

DC9625000

F ：

8

TSCA ：

TSCA listed

HazardClass ：

6.1

PackingGroup ：

II

HS Code ：

29215900

Hazardous Substances Data：

92-87-5(Hazardous Substances Data)

Toxicity：

Acute oral LD₅₀ for mice 214 mg/kg, rats 309 mg/kg (quoted, RTECS, 1985).