7719-09-7

Product Name: Thionyl chloride

Formula: Cl2OS

Synonyms: Sulfurous acid dichloride, Sulfurous oxychloride;Thionyl chloride

Inquiry

CHEMICAL AND PHYSICAL PROPERTIES SAFETY INFORMATION COMPUTED DESCRIPTORS PRODUCT INTRODUCTION RELATED SUPPLIERS

CHEMICAL AND PHYSICAL PROPERTIES

Physical Description	Thionyl chloride appears as a colorless to yellow fuming liquid with a suffocating pungent odor. Boiling point 79 °C. A lachrymator. Highly corrosive and toxic. Long-term inhalation of low concentrations or short-term inhalation of high concentrations has adverse health effects.
Color/Form	Colorless to pale yellow or reddish liquid
Odor	Suffocating odor
Boiling Point	169 °F at 760 mmHg (NIOSH, 2023)
Melting Point	-156 °F (NIOSH, 2023)
Solubility	Reacts with water (NIOSH, 2023)
Density	1.64 (NIOSH, 2023) - Denser than water; will sink
Vapor Density	4.1 (Air = 1)
Vapor Pressure	100 mmHg at 70 °F (NIOSH, 2023)
Stability/Shelf Life	Stable under recommended storage conditions.
Decomposition	Hazardous decomposition products formed under fire conditions - Sulfur oxides, hydrogen chloride gas.
Heat of Vaporization	31.0 kJ/mol
Surface Tension	34.0 mN/m at 18 °C
Refractive Index	Index of refraction 1.517 at 20 °C/D
Other Experimental Properties	Decomposes at 140 °C
Chemical Classes	Toxic Gases & Vapors -> Acid Halides

SAFETY INFORMATION

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06
GHS Hazard Statements	H302:Acute toxicity,oral H314:Skin corrosion/irritation H331:Acute toxicity,inhalation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	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.

COMPUTED DESCRIPTORS

Molecular Weight	118.97 g/mol
XLogP3	1.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	117.9046912 g/mol
Monoisotopic Mass	117.9046912 g/mol
Topological Polar Surface Area	36.3 Å²
Heavy Atom Count	4
Formal Charge	0
Complexity	29
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently-Bonded Unit Count	1
Compound Is Canonicalized	Yes

PRODUCT INTRODUCTION

description

Thionyl chloride appears as a colorless to yellow fuming liquid with a suffocating pungent odor. Boiling point 79 °C. A lachrymator. Highly corrosive and toxic. Long-term inhalation of low concentrations or short-term inhalation of high concentrations has adverse health effects.