TRIPHENYL BORATE

Boric acid triphenyl ester; Trifenylester kyseliny borite; Phenyl borate; Tris(phenoxy)borane; Triphenoxyborane; Triphenoxyboron;

TRIPHENYL BORATE

 

PRODUCT IDENTIFICATION

CAS RN

1095-03-0

EINECS RN

214-137-0

FORMULA

(C6H5O)3B

MOLE WEIGHT

290.12

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

white to off-white crystalline powder

MELTING POINT

98 - 101 C

BOILING POINT

 

DENSITY

 

SOLUBILITY IN WATER

 

pH

 

VAPOR DENSITY

 

REFRACTIVE INDEX

 

FLASH POINT

 

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions

INCOMPATIBLE MATERIALS

Strong oxidizing agents. Moisture.

DECOMPOSITION PRODUCTS

Carbon oxides, Boron oxides, Phenol.

POLYMERIZATION Has not been reported

NFPA RATINGS

 

 

SAFETY

HAZARD NOTES

Highly Flammable. Toxic by inhalation, in contact with skin and if swallowed. Risk of serious damage to eyes.

EYE

 

SKIN

 

INGESTION

 

INHALATION

 

CHRONIC

 

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

2811
HAZARD CLASS

6.1

PACKING GROUP

III

HAZARD SYMBOL

F,T

RISK PHRASES

11-23/24/25-41

SAFETY PHRASES

16-26-36/37/39-45

 

OTHER INFORMATION

1.http://www.chem.wisc.edu/areas/reich/chem842/_chem842-07-boron.htm (Boron Chemistry)

2.The general formula for boric acid esters is B(OR)3. The lower molecular weight esters such as methyl, ethyl, and phenyl are most commonly referred to as methyl borate, ethyl borate, and phenyl borate, respectively. Some of the more common boric acid esters used in industrial applications are trimethyl borate, trimethyl borate azeotrope, triethyl borate, triethyl borate azeotrope, tri-n-propyl borate, triisopropyl borate, tri- n-butyl borate, triphenyl borate, tricresyl borate, trimethoxyboroxine, and triisopropoxyboroxine. Most reported boric acid esters are trialkoxy or triaryloxy boranes. The esters range from colorless low boiling liquids to solids that possess high melting points. Boric acid esters usually have an odor similar to the hydroxy compound from which they are derived. Alkyl boric acid esters derived from straight-chain alcohols and aryl boric acid esters are stable to relatively high temperatures. Trialkoxyboranes from branched-chain alcohols are much less stable, and boranes from tertiary alcohols can even decompose at 100°C. Decomposition of branched-chain esters leads to mixtures of olefins, alcohols, and other derivatives. Methods used for the preparation of borate esters, include the esterification of boric acid or boric oxide, B2O3, and transesterification. Most methyl borate is produced by Morton International and used captively to manufacture sodium borohydride. Aryl borates produce phenols when in contact with water and are therefore subject to shipping regulations governing such materials and must carry a Corrosive Chemical label. Lower alkyl borates are flammable; methyl, ethyl, and butyl borates must be stored in approved areas. Other compounds are not hazardous. Boric acid esters are used in the production of sodium borohydride, gas fluxing, as polymer additives, in hydraulic fluids and lubricants, as biocides, and in hydrocarbon oxidation. (source: http://mrw.interscience.wiley.com/emrw/9780471238966/kirk/article/boridock.a01/current/abstract)

3.Triphenyl borate is a Lewis acid which act as reaction rate accelerators or inhibitors in polycarbonate polymerization by enhancing the electrophilicity of the carbonyl group.

 

SALES SPECIFICATION

APPEARANCE

white to off-white crystalline powder

ASSAY

98.0% min

MELTING POINT

98 - 101 C

 

PACKING

 

 

PRICE