DIMETHYL-5-SULFOISOPHTHALATE, SODIUM SALT
PRODUCT
IDENTIFICATION
CAS
NO.
3965-55-7
EINECS
NO.
223-578-8
FORMULA
C 6 H 3 (CO 2 CH 3 ) 2 NaSO 3
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