Melting point :140°C
Boiling point :sublimes at 800℃ [STR93]
Density :3,36 g/cm³
solubility :insoluble in H2O, ethanol
form :Powder
Specific Gravity :3.363?“
color :yellow-green hexagonal, hexane crystals, crystalline
Water Solubility :Practically insoluble in water, acetone, and glacial acetic acid
Sensitive :Moisture Sensitive
Crystal Structure :VF3 type
crystal system :Three sides
Merck :14,9922
Space group :R3c
Lattice constant :

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.517	0.517	1.344	90	90	120	0.3108

Exposure limits :ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3; Ceiling 0.05 mg/m3 CAS DataBase Reference :10049-12-4(CAS DataBase Reference)

Symbol(GHS):
Signal word:
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H300 Fatal if swallowed Acute toxicity,oral Category 1, 2 Danger P264, P270, P301+P310, P321, P330,P405, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
Precautionary statements:	P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P320 Specific treatment is urgent (see … on this label). P405 Store locked up.