Melting point :50-53 °C (lit.)
Boiling point :61-62 °C (lit.)
Density :1.443 g/mL at 25 °C
vapor density :3.65 (vs air)
vapor pressure :100 mm Hg ( 22.6 °C)
refractive index :1.4670 (estimate)
Flash point :61.4°C
storage temp. :2-8°C
solubility :Soluble in chloroform, dichloromethane, ethanol, diethyl ether, benzene and acetonitrile.
form :Solution
color :White
Odor :Penetrating odor
Water Solubility :decomposed slowly by cold H2O [HAW93]
Sensitive :Moisture & Light Sensitive
Merck :14,2693
BRN :1697296
Exposure limits :No exposure limit is set. However, on the basis of the exposure limits of related compounds a ceiling limit of 0.5 ppm (2 mg/m³) is recommended.
Stability :Stable. Reacts violently with water and with mineral and organic acids.
CAS DataBase Reference :506-68-3(CAS DataBase Reference)
NIST Chemistry Reference :Cyanogen bromide(506-68-3)
EPA Substance Registry System :Cyanogen bromide (506-68-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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 H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.