CAS 676-83-5 Methyl phosphonous dichloride (HCID 61194)

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Basic information

CAS: 676-83-5
Standard SMILES: CP(Cl)Cl
InChIKey: CDPKWOKGVUHZFR-UHFFFAOYSA-N
Molecular formula: CH3Cl2P
Average molar mass: 116.91 g/mol
Monoisotopic mass: 115.93494209

Overview

Methyl phosphonous dichloride appears as a colorless liquid with a pungent odor. Very toxic by inhalation. Denser than water.

Names & identifiers

Preferred name: Methyl phosphonous dichloride
IUPAC: dichloro(methyl)phosphane
English name: Methyldichlorophosphine
Molecular formula: CH3Cl2P
Molecular weight: 116.91

Names & synonyms

676-83-5Methylphosphonous dichlorideMethyl phosphonous dichlorideMethylphosphorus dichloridePHOSPHONOUS DICHLORIDE, METHYL-Phosphonous dichloride, P-methyl-EINECS 211-631-8DTXSID1060978EC 211-631-8Phosphine, dichloromethylRefChem:818046methylphosphinic dichloride

Show more names

DICHLOROMETHYLPHOSPHINEAURORA KA-1256Methyldichlorophosphanemethylphosphonousdichloridemethyl-phosphonousdichloridMETHYLDICHLOROPHOSPHINE,97%

DTXCID6044931METHYLPHOSPHINOUS DICHLORIDE211-631-8Methyldichlorophosphinedichloro(methyl)phosphaneCH3PCl2dichloro(methyl)phosphinePhosphine, dichloromethyl-

Database identifiers

CAS: 676-83-5
PubChem CID: 61194
DTXSID: DTXSID1060978
EC Number: 211-631-8

Properties

Computed structural properties

XLogP: 1.5
Topological polar surface area: 0 Å²
Hydrogen bond donors: 0
Hydrogen bond acceptors: 0
Rotatable bonds: 0
Heavy atoms: 4
Formal charge: 0
Complexity: 13.5

Experimental & physicochemical properties

Chemical Classes · 2 items

Toxic Gases & Vapors -> Acid Halides

Flammable agents - 3rd degree

SpringerMaterials PropertiesSchoenflies notation

Density1.3 @25 °C

Vapor Pressure75.0 [mmHg]

Physical Description · 2 items

Methyl phosphonous dichloride appears as a colorless liquid with a pungent odor. Very toxic by inhalation. Denser than water.

Colorless liquid with a pungent odor; [CAMEO]

Physicochemical properties

Melting point: 81.5 °C · 81.5 °C
Boiling point: 81 · 81-82 °C
Density: 1.3 · 1.3
refractive index: 1.4944 · 1.4944-1.4964
Flash point: 48 °C · 48 °C
storage temp.: Flammables area

Safety & regulation

GHS classification

GHS Classification · 4 items

Danger

H226 (29.1%): Flammable liquid and vapor [Warning Flammable liquids]

P210, P222, P231, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P280, P301+P316, P301+P317, P301+P330+P331, P302+P335+P334, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P321, P330, P361+P364, P363, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 148 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Hazards IdentificationToxic/poison by inhalation (TIH/PIH)

Regulatory Information · 3 items

Chemical: Phosphonous dichloride, methyl-

Status: Active Update: 25-04-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/12194

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

DOT LabelPoison Inhalation Hazard Spontaneously Combustible

Fire Hazards · 2 items

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

· Flammable/combustible material.

Health Hazards · 2 items

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:

· Fire will produce irritating, corrosive and/or toxic gases.

Hazards Summary · 1 item

Reacts with water to generate hydrogen chloride, a reaction that may be violent and ignite nearby combustible materials; May cause burns; Very toxic by inhalation; [CAMEO] Corrosive; Highly flammable; Reacts violently with water; Inhalation may cause chemical pneumonitis; [MSDSonline]

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationPhosphonous dichloride, P-methyl-: ACTIVE

Applications

UsesMethyldichlorophosphine is used to prepare difunctional phosphonoamidite coupling reagents in nucleoside chemistry and "phospha-Wittig"reagents.

General DescriptionA colorless liquid with a pungent odor. Very toxic by inhalation. Denser than water.