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7719-12-2 structure, Cl3P
phosphorus trichloride
CAS No.: 7719-12-2 Formula: Cl3P Molecular Weight: 137.33300
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7719-12-2 structure, Cl3P

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7719-12-2 structure, Cl3P

phosphorus trichloride

CAS No.:

7719-12-2

 Formula:

Cl3P

 Molecular Weight: 137.33300
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Description

Phosphorus trichloride is a chemical compound of phosphorus and chlorine, having the chemical formula PCl3. It has a trigonal pyramidal shape. It is the most important of the three phosphorus chlorides. It is an important industrial chemical, being used for the manufacture of organophosphorus compounds for a wide variety of applications. It has a 31P NMR signal at around +220 ppm with reference to a phosphoric acid standard.

Numbering system

UNII M97C0A6S8U

Properties

Appearance & Physical State

 Clear liquid

Density

 1.574

Boiling Point

 76ºC

Melting Point

 -112ºC

Flash Point

 none

Refractive Index

 n20/D 1.5148(lit.)

Water Solubility

 reacts

Stability

 Stable, but light sensitive. Incompatible with water, many metals, fluorine, acids, variety of organic materials including acids, alcohols and reducing agents. Reaction with water is violent and yields toxic gas.

Storage Condition

 Store at RT.

Vapor Density

 4.75 (vs air)

Vapor Pressure

 23.32 psi ( 55 °C)

Safety Info

RTECS

 TH3675000

Hazard Class

 6.1

Safety Statements

 S7/8-S26-S36/37/39-S45

HS Code

 2812104300

WGK Germany

 2

Packing Group

 I

RIDADR

 UN 1809

Risk Statements

 R14; R26/28; R35; R40; R48/20

Hazard Codes

 C

Symbol

 GHS05, GHS06, GHS08

Signal Word

 Danger

Hazard Declaration

 H301; H314; H330; H335; H336; H351; H373

Caution Statement

 P260; P280; P284; P301 + P310; P305 + P351 + P338; P310

Supplemental Hazard Statements

 Contact with water liberates toxic gas; Reacts violently with water.
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Precursor:
dichlorine Cyclohexanecarboxylic acid tetraphosphorus thionyl dichloride phosphorus trifluoride phosphoryl trichloride dichloro(thiocyanato)phosphane tetrakistrichlorophosphinenickel(0) chloroselanyl selenohypochlorite phosphorus pentachloride
Product:
dichlorophosphanecarbonitrile 3-chloropent-1-ene chloro-methoxy-dimethylsilane Dibutyl phosphite N-chloro-1-phenylmethanimine chlorophosphinedicarbonitrile dicyanophosphanylformonitrile dibutyl chlorophosphite butoxy(dichloro)phosphane 1-chloropent-2-ene
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Compound Synonyms: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9

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