1,1,2,2-TETRAPHENYLDISILANE Property

Melting point:

80 °C

Boiling point:

441.7±18.0 °C(Predicted)

solubility 

soluble in chloroform and most organic solvents, less soluble in ethanol.

form 

powder to crystal

color 

White to Light yellow to Light orange

Hydrolytic Sensitivity

4: no reaction with water under neutral conditions

Safety

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

HS Code 

2931.90.6000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

1,1,2,2-TETRAPHENYLDISILANE Chemical Properties,Usage,Production

Physical properties

mp 79–80 °C

Uses

1,1,2,2-tetraphenyldisilane (TPDS) is more effective than pentamethyldisilane, since one phenyl group on the Si–H group probably reduces by 2 kcal/mol the Si–H bond dissociation energy. TPDS is used for radical reduction, intramolecular and intermolecular carbon–carbon bond formation, 1,2-elimination, etc., of halides, chalcogenides, and xanthates.

Preparation

generally, 1,1,2,2-tetraphenyldisilane is prepared by the coupling reaction of diphenylsilane in the presence of diphenyltitanocene without solvent under heating conditions at 110°Cfor 24 h.