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5-Sodiosulfoisophthalic Acid

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Product Description

PRODUCT

5-Sodiosulfoisophthalic Acid

CAS #

6362-79-4

SYNONYM

SSIPA; 1,3-Benzenedicarboxylic acid, 5-sulfo-, sodium salt (1:1)

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FORMULA

C8H5NaO7S

Typical Product Specifications

APPEARENCE

free flowing crystalline solid

COLOR

white to off-white

MELTING POINT

373 to 375 C

ABSORPTIVITY

0.4 mL/g cm at 456 nm

ODOR

Essentially odorless

PH

2.0 (10% aqueous solution)

WATER

1.5%

WATER SOLUBILITY

380 g/100g at 24C

ASSAY

98.0% min

NEUTRALIZATION VALUE

132.5 to 136.5

SODIUM SULFATE CONTENT

0.30% max

SODIUM CHLORIDE

0.01% max

ACIDITY

0.20% as H2SO4

IRON

4.0 ppm max

WATER INSOLUBLES

0.015% max

COLOR

15 APHA max (5% in water)

CHEMICAL STRUCTURE

5-Sodiosulfoisophthalic Acid distributor CAS: 6362-79-4 C8H5NaO7S chemical structure

NOTES

Used as a monomer for waterborne polyesters and nylon fibers, in adhesion aid for magnetic tapes, and amine free polyurethane dispersions.

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