TRI-tert-BUTYL BORATE

Boron tert-butoxide; Tri-tert-butoxyborane; Tris(tert-butyl) borate; Tris(tert-butyloxy)borane; Boric acid tri-tert-butyl ester; Boric acid tris(1,1-dimethylethyl) ester; Tris((2-methylpropan-2-yl)oxy)borane;

TRI-tert-BUTYL BORATE

 

PRODUCT IDENTIFICATION

CAS RN

7397-43-5

EINECS RN

 

FORMULA

[(CH3)3CO]3B

MOLE WEIGHT

230.15

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

clear liquid

MELTING POINT

18 - 19 C

BOILING POINT

101 C at 74 mmHg

DENSITY

0.811

SOLUBILITY IN WATER

 

pH

 

VAPOR DENSITY

 

REFRACTIVE INDEX

1.3870 - 1.3890 at 20 C, 589 nm

FLASH POINT

29 C

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions

INCOMPATIBLE MATERIALS

Strong oxidizing agents. Moisture.

DECOMPOSITION PRODUCTS

Carbon oxides, Boron oxides

POLYMERIZATION Has not been reported

NFPA RATINGS

 

 

SAFETY

HAZARD NOTES

Flammable. Moisture sensitive.

EYE

May cause eye irritation.

SKIN

May cause skin irritation. May be harmful if absorbed through the skin

INGESTION

May cause irritation of the digestive tract. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.

INHALATION

May cause respiratory tract irritation. May be harmful if inhaled.

CHRONIC

 

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

1933
HAZARD CLASS

3

PACKING GROUP

III

HAZARD SYMBOL

 

RISK PHRASES

10

SAFETY PHRASES

16

 

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.Alkyl Borates are used as solvents or catalysts for the production of resins, waxes, paints and varnishes. It is used as a methylation agent or as a boron source in organic reaction to manufacture biocides, flame retardants, anti-oxidants, corrosion inhibitors, tackifiers for elastomers and rubbers, cross-linking agents for polymer, dehydrating agents and plastic stabilizers. It is used as a component of flame retardant for textile and in welding fluxes.

 

SALES SPECIFICATION

APPEARANCE

white to off-white crystalline powder

ASSAY

98.0% min

MELTING POINT

98 - 101 C

 

PACKING

 

 

PRICE