Dichlorophenylphosphine Property

Melting point:

−51 °C(lit.)

Boiling point:

222 °C759 mm Hg(lit.)

Density 

1.319 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.597(lit.)

Flash point:

>230 °F

storage temp. 

Store below +30°C.

form 

Liquid

Specific Gravity

1.319 (20℃)

color 

Clear colorless to slightly yellow

Water Solubility 

Reacts

Sensitive 

Moisture Sensitive

BRN 

508189

CAS DataBase Reference

644-97-3(CAS DataBase Reference)

NIST Chemistry Reference

Phosphonous dichloride, phenyl-(644-97-3)

EPA Substance Registry System

Phosphonous dichloride, P-phenyl- (644-97-3)

Safety

Hazard Codes 

F,T

Risk Statements 

17-25-34-29-37-35-14

Safety Statements 

26-28-36/37/39-43-45-28A

RIDADR 

UN 2845 4.2/PG 1

WGK Germany 

3

RTECS 

TB2478000

F 

10-21

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

29310095

Hazardous Substances Data

644-97-3(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H314Causes severe skin burns and eye damage

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Dichlorophenylphosphine Chemical Properties,Usage,Production

Chemical Properties

Colorless to light yellow liqui

Uses

Organic synthesis, for derivation of plasticizers, polymers, antioxidants; oil additives.

Uses

Dichlorophenylphosphine and its derivatives are used as an intermediate to make plasticizers, antioxidants, stabilizers, catalysts and high pressure lubricant additives and in lacquer formulatings.

General Description

A colorless, fuming liquid. Density 1.32 g / cm3. Flash point 102°C. Corrosive to metals and tissue.

Air & Water Reactions

Reacts with water, including moisture in air or soil, to liberate heat and hydrochloric acid [Merck, 11th ed. 1989].

Reactivity Profile

Dichlorophenylphosphine is incompatible with water, with bases (including amines), with strong oxidizing agents, and with alcohols. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].

Hazard

Highly corrosive to skin, tissue. Flammable.

Health Hazard

Inhalation causes irritation of nose and throat; pulmonary edema may develop following severe exposures. Contact with skin or eyes causes severe burns. Ingestion causes severe burns of mouth and stomach.

Flammability and Explosibility

Non flammable

Safety Profile

A poison irritant to skin, eyes, and mucous membranes and poison by ingestion and inhalation. When heated to decomposition it emits very toxic fumes of Cland POx. See also PHOSPHINE.

Purification Methods

Distil it in a vacuum byfractionating through a 20cm column packed with glass helices (better use a spinning band column) [Buchner & Lockhart J Am Chem Soc 73 755 1951, NMR: Müller et al. J Am Chem Soc 78 3557 1956, IR: Daasch & Smith Anal Chem 23 853 1951]. It forms a yellow Ni complex: Ni(C6H5Cl2P)4 (m 91-92o, from H2O) [Quin J Am Chem Soc 79 3681 1957 ] and a yellow complex with molybdenum carbonyl: Mo(CO)3.(C6H5Cl2P)3 (m 106-110o dec) [Abel et al. J Chem Soc 2323 1959]. [Beilstein 16 IV 972.]