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o-Chlorobenzylidene malononitrile Structure

o-Chlorobenzylidene malononitrile

Chemical Properties

Melting point 68-70 °C(lit.)
Boiling point 126 °C0.1 mm Hg(lit.)
Density  1.2906 (rough estimate)
vapor pressure  3 x 10-5 mmHg at 20 °C (NIOSH, 1997)
refractive index  1.5500 (estimate)
storage temp.  2-8°C
solubility  Soluble in acetone, benzene, 1,4-dioxane, ethyl acetate, and methylene chloride (Windholz et al., 1983)
form  White, crystalline solid
color  White crystalline solid with a pepper-like odor
Water Solubility  0.1-0.5 g/100 mL at 16 ºC
Exposure limits NIOSH REL: ceiling 0.05 ppm (0.4 mg/m3), IDLH 2 mg/m3; OSHA PEL: TWA 0.05 ppm; ACGIH TLV: ceiling 0.05 ppm (adopted).
Stability Stable. Incompatible with strong oxidizing agents. Combustible.
CAS DataBase Reference 2698-41-1(CAS DataBase Reference)
NIST Chemistry Reference 2-Chlorobenzalmalononitrile(2698-41-1)
EPA Substance Registry System o-Chlorobenzylidene malononitrile (2698-41-1)

Safety Information

Hazard Codes  Xi,T
Risk Statements  36/37/38-42/43-25
Safety Statements  26-27-37/39-45-36/37/39
RIDADR  UN 3448 6.1/PG 2
OEL Ceiling: 0.05 ppm (0.4 mg/m3) [skin]
WGK Germany  3
RTECS  OO3675000
HazardClass  6.1(a)
PackingGroup  I
Hazardous Substances Data 2698-41-1(Hazardous Substances Data)
Toxicity LD50 in rats (mg/kg): 28 i.v., 48 i.p.; LC50 in rats: 88,480 mg/min/m3 (Ballantyne, Swanston)
IDLA 2 mg/m3

MSDS

Usage And Synthesis

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