Carboxy Methyl Cellulose Sodium (CMC)

■ Chemical Description

-- Carboxymethylcellulose sodium (abbr. CMC)

■ CAS No. 9004-32-4

■ Molecular and Structural Formula C₈H₁₆NaO₈

■ Characteristics

--A White flocculent powder, odorless, tasteless, non-toxic;

--Soluble in water, forming a transparent colloidal solution;

■ Specification

No	Tests	Specification
1	Viscosity (water solution with mass fraction of 2%)	mpa.s ≥25
2	Degree of Substitution	0.20-1.50
3	Mass Fraction of Loss on Drying	6.0-8.5
4	Mass Fraction of Loss on Drying %	≤10.0
5	Mass Fraction of Chloride (calculated by C1) %	≤1.2
6	Mass Fraction of Arsenic %	≤0.0002
7	Mass Fraction of Lead %	≤0.0005
8	Mass Fraction of Heavy Metal (calculated by Pb) %	≤0.0015
9	Mass Fraction of iron  %	≤0.02

■ Application

-- used for the surface treatment of vegetables, fruits, eggs and tea, to form a thin film on its surface, to maintain the original color and flavor and extend shelf life.;

-- Used to repair teeth, to make laxative, hemostatic agents, frame adhesive;

-- used as a thickener, suspending agents, binders, protective colloid in the area of drilling mud, papermaking on tobacco, detergent/textile and architectural ceramics;

■ Packaging and Storage

--Packed in 25,50 kg fiber bag, inner lined with PE bags;

--Stored in dry place at room temperature;

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