HYDROGEN CYANIDE suppliers

Properties

Melting point:：

-13.4°

Boiling point:：

bp 25.6°

Density ：

d(gas) 0.941 (air = 1); d(liq) 0.687

vapor pressure ：

750 mmHg at 25 °C

refractive index ：

1.2594

solubility ：

very soluble in H2O, ethanol; soluble in ethyl ether

form ：

colorless liquid

pka：

9.2(at 25℃)

color ：

colorless liquid or gas

Odor：

Bitter almond odor detectable at 1 to 5 ppm; however, 20 to 60% of the population are reported to be unable to detect the odor of HCN

Water Solubility ：

miscible with H2O, alcohol; slightly soluble ether [MER06]

Dielectric constant：

158.0（0℃）

Exposure limits：

Ceiling 11 mg/m³ (10 ppm) (ACGIH), 5 mg CN/m³/10 min (NIOSH); TWA air 11 mg/m³ (10 ppm) skin (OSHA); IDLH 50 ppm.

LogP：

-0.250

SecurityInformation

Symbol(GHS) ：

GHS06,GHS09

Signal word ：

Danger

Hazard statements ：

H300-H310-H330-H410

Precautionary statements ：

P264-P270-P301+P310-P321-P330-P405-P501-P262-P264-P270-P280-P302+P350-P310-P322-P361-P363-P405-P501-P260-P271-P284-P304+P340-P310-P320-P403+P233-P405-P501-P273-P391-P501

Hazard Codes ：

F+,T+,N

Risk Statements ：

12-26-50/53-26/27/28

Safety Statements ：

7/9-16-36/37-38-45-60-61

RIDADR ：

1051

OEL：

STEL: 4.7 ppm (5 mg/m3) [skin]

Autoignition Temperature：

538 °C

HazardClass ：

6.1(a)

PackingGroup ：

I

Toxicity：

LC50 in rats, mice, dogs: 544 ppm (5 min), 169 ppm (30 min), 300 ppm (3 min) by inhalation, K. C. Back et al., Reclassification of Materials Listed as Transportation Health Hazards (TSA-20-72-3; PB214-270, 1972)

IDLA：

50 ppm