Melting point :-105 °C
Boiling point :79 °C(lit.)
Density :1.64 g/mL at 20 °C
vapor density :4.1 (vs air)
vapor pressure :97 mm Hg ( 20 °C)
refractive index :n20/D 1.518(lit.)
Flash point :105°C
storage temp. :Store at RT.
solubility :Miscible with toluene, chloroform, benzene, carbon tetrachloride and diethyl ether.
form :Liquid
color :≤50(APHA)
Odor :Characteristic, pungent odor
Water Solubility :REACTS
Sensitive :Moisture Sensitive
Merck :14,9348
Exposure limits :ACGIH: TWA 50 ppm
OSHA: TWA 25 ppm; STEL 125 ppm
NIOSH: IDLH 2300 ppm Dielectric constant :9.1（22℃）
Stability :Reacts violently with water. Incompatible with most common metals, strong reducing agents, strong bases, alcohols, amines.
CAS DataBase Reference :7719-09-7(CAS DataBase Reference)
NIST Chemistry Reference :Thionyl chloride(7719-09-7)
EPA Substance Registry System :Thionyl chloride (7719-09-7)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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 H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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.