TRI-n-PROPYL BORATE

PRODUCT IDENTIFICATION

CAS NO.

688-71-1

TRI-n-PROPYL BORATE

EINECS NO.  
FORMULA (C3H7O)3B
MOL WT. 188.07
H.S. CODE 2920.90

TOXICITY

 
SYNONYMS Propyl Borate; Boric acid Tripropyl Ester;
Tripropoxyborane; Boron Propoxide; Tripropoxyborine; Tripropoxyboron; Boron propoxide; Boric acid tri-n-propyl ester;

SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE clear liquid
MELTING POINT  
BOILING POINT 175 - 177 C
SPECIFIC GRAVITY

0.855 - 0.857

SOLUBILITY IN WATER Decomposes
pH

 

VAPOR DENSITY  
AUTOIGNITION

 

NFPA RATINGS Health: 2; Flammability: 2; Reactivity: 1

REFRACTIVE INDEX

1.3950

FLASH POINT

32 C

STABILITY Stable under normal conditions

APPLICATIONS

Organo Borates are used as  solvents or catalysts for the production of resins, waxes, paints and varnishes. These are boron sources in organic compound synthesis to make antioxidants, flame retardants, corrosion inhibitors and biocides. These are used as dehydrating agents for petroleum products, tackifiers for silicone elastomers, stabilizers and binders for rubbers or plastics and as cross-linking agents in polymerization processes. They are are used in welding fluxes.
SALES SPECIFICATION

APPEARANCE

clear liquid

PURITY (GC)

98.0% min

BORON CONTENT

5.60 - 5.75%

TRANSPORTATION
PACKING 170kgs in drum
HAZARD CLASS 3 (Packing Group: II)
UN NO. 2416
OTHER INFORMATION
European Hazard Symbols: XN, Risk Phrases: 22-36/37/38, Safety Phrases: 26-36/37/39

GENERAL DESCRIPTION OF BORIC ACID

Boric acid refers to 3 compounds; orthoboric acid (also called boracic acid, H3BO3 or B2O3·3H2O), metaboric acid (HBO2 or B2O3·H2O), and tetraboric acid (also called pyroboric, H4B4O7 or B2O3·H2O). Orthoboric acid dehydrates to form metaboric acid and tetraboric acid above 170 C and 300C respectively. Orthoboric acid is derived from boric oxide in the form of white, triclinic crystals. It is poorly soluble in cold water but  dissolves readily in hot water, in alcohol and glycerine. Metaboric acid is a white, cubic crystalls. It is soluble in water slightly. Tetraboric acid is a white solid soluble in water. When tetraboric and metaboric acid are dissolved, it reverts to orthoboric acid. The main uses of boric acid is to make borate salts such as borax and other boron compounds. Boric acid is also used in heat resistant glass, in fireproofing fabrics, in electroplating baths, in leather manufacturibg, porcelain enamels and in hardening steels. Boric acid has antiseptic and antiviral activity. Aqueous solutions have been used as mouth-washes, eye-drops, skin lotions and cosmetics. Boric acid and its salts are components of many commerical insecticides and wood preservatives.