TETRAPHENYLARSONIUM CHLORIDE Chemical Properties

Melting point:

258-260 °C(lit.)

form 

Powder

color 

white

Water Solubility 

Freely soluble in water. Soluble in alcohol. Sparingly soluble in acetone

Merck 

14,9236

BRN 

3580063

Stability:

Stable. Incompatible with strong oxidizing agents.

CAS DataBase Reference

507-28-8(CAS DataBase Reference)

EPA Substance Registry System

Arsonium, tetraphenyl-, chloride (507-28-8)

Safety Information

Hazard Codes 

T,N

Risk Statements 

23/25-50/53

Safety Statements 

20/21-28-45-60-61

RIDADR 

UN 3465 6.1/PG 3

WGK Germany 

3

RTECS 

CI0600000

HazardClass 

6.1

PackingGroup 

III

MSDS

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TETRAPHENYLARSONIUM CHLORIDE Usage And Synthesis

Chemical Properties

crystalline solid

Uses

Cation exchange reagent. Used to prepare arsonium amide, oxime, and carbohydrate derivatives.

Safety Profile

Poison by intravenous route. When heated to decomposition it emits toxic fumes of As and Cl-.

Purification Methods

A neutralised aqueous solution is evaporated to dryness. The residue is extracted into absolute EtOH, evaporated to a small volume and precipitated by addition of absolute Et2O. It is again dissolved in a small volume of absolute EtOH or ethyl acetate and re-precipitated with Et2O. Alternatively, it is purified by adding conc HCl to precipitate the chloride dihydrate. Redissolve in water, neutralise with Na2CO3 and evaporate to dryness. The residue is extracted with CHCl3 and finally crystallised from CH2Cl2 or EtOH by adding Et2O. If the aqueous layer is somewhat turbid treat. it with Celite and filter through filter paper. It can be dehydrated before use in a vacuum. The tetrafluoroborate salt has m 293-295o (needles from MeCN), and the picrate salt has m 203-204o (from EtOH). [Blicke et al. J Am Chem Soc 57 702 1935, Duke & Brown J Am Chem Soc 76 1443 1954, Popov & Humphrey J Am Chem Soc 81 2043 1959, Singhal & Raj Synth Inorg Met-org Chem 23 1011 1993, Beilstein 16 III 1006, 16 IV 1170.] POISONOUS.

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