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Welan Gum

Welan Gum Welan Gum Welan Gum Welan Gum
Product Name:Welan Gum
CAS No:96949-22-3
Prdouct Details:

Welan gum is an exopolysaccharide, it is produced by fermentation of sugar by bacteria of the genus Alcaligenes.
The molecule consists of repeating tetrasaccharide units with single branches of L-mannose or L-rhamnose. In
solution, the gum exhibits viscosity retention at elevated temperature, and is stable in a wide pH range, in the pre-
sence of calcium ion, and with high concentration of glycols. It used as a rheology modifier in industrial applications
such as cement manufacturing.

Characteristics:

Product Name:

Welan gum

Appearance

White to Cream colored powder

CAS RN.:

96949-22-3

Molecular Weight:

168.15212

Density:

26.25 lgs/ft2 (bulk)

Molecular Formula:

C7H8N2O3

Specification:

                     Test Item

Specifications

Appearance

Off-white to tan powder

Solubility

Hot or cold water

Loss on drying

max.13.0%

pH (of 1% solution)

5.0-9.5

Particle size

95%through 80 mesh

Shelf Life

2 Year after production date under the specific storage conditions

Packing:           20kg/Bag or 20kg/Cardboad Drum.


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