DIMETHYL-5-SULFOISOPHTHALATE, SODIUM SALT

PRODUCT IDENTIFICATION

CAS NO. 3965-55-7

DIMETHYL-5-SULFOISOPHTHALATE, SODIUM SALT

EINECS NO. 223-578-8
FORMULA C6H3(CO2CH3)2NaSO3
MOL WT. 296.23
H.S. CODE  
SMILES

 

CLASSIFICATION

 

TOXICITY  
SYNONYMS Sodium 3,5-bis(carbomethoxy)benzenesulfonate;
 3,5-Bis(methoxycarbonyl)benzenesulfonic acid sodium salt; 1,3-Benzenedicarboxylic acid, 5-sulfo-, 1,3-dimethyl ester, sodium salt

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white powder
MELTING POINT > 300 C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER soluble
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS Health: 1; Flammability: 1; Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT

138 C

STABILITY Stable under ordinary conditions

APPLICATIONS

Dimethyl 5-sulfoisophthalate is used in the production of sulfur containing high molecular weight polyester elastomers. This finished  polyester fibers are compatible with cationic dyes which provide better clarity and brightness than disperse dyes.
SALES SPECIFICATION

APPEARANCE

white powder
PURITY

98.0% min

WATER

0.5% max

SAPONIFICATION VALUE

375 - 381 KOH mg/g

Fe

5ppm max

TRANSPORTATION
PACKING 25kgs in bag
HAZARD CLASS not regulated
UN NO.

 

OTHER INFORMATION

Hazard Symbols: n/a Risk Phrases: n/a, Safety Phrases: 24/25-28A-37-45