Boiling point :66 °C
Density :1.013 g/mL at 25 °C
Flash point :−1 °F
storage temp. :Store below +30°C.
solubility :Miscible with diethyl ether and tetrahydrofuran.
form :Liquid
color :Pale brown to dark green
Water Solubility :reacts
Sensitive :Air & Moisture Sensitive
BRN :3587199
Exposure limits :ACGIH: TWA 50 ppm; STEL 100 ppm (Skin)
OSHA: TWA 200 ppm(590 mg/m3)
NIOSH: IDLH 2000 ppm; TWA 200 ppm(590 mg/m3); STEL 250 ppm(735 mg/m3) CAS DataBase Reference :676-58-4(CAS DataBase Reference)
EPA Substance Registry System :Magnesium, chloromethyl- (676-58-4)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H260 In contact with water releases flammable gases which may ignite spontaneously Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases Category 1 Danger P223, P231+P232, P280, P335+ P334,P370+P378, P402+P404, P501 H261 In contact with water releases flammable gas Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases Category 2 Category 3 Danger Warning P231+P232, P280, P370+P378,P402+P404, P501 H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, 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 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P231+P232 Handle under inert gas. Protect from moisture. P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P309 IF exposed or if you feel unwell: P310 Immediately call a POISON CENTER or doctor/physician. P370+P378 In case of fire: Use … for extinction. P402+P404 Store in a dry place. Store in a closed container. P403+P235 Store in a well-ventilated place. Keep cool.