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Basic Info
| Model No. | CAS 9004-32-4 |
|---|---|
| Brand Name | Hansstar |
| place of origin | China |
| Application field | Coating Auxiliary Agents, Paper Chemicals, Petroleum Additives, Textile Auxiliary Agents, Water Treatment Chemicals |
| CAS No. | 9004-32-4 |
| Shelf Life | 2 Years |
| Usage | Petroleum Additives |
Product description
Carboxymethyl cellulose (CMC) or cellulose gum is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. It is often used as its sodium salt, sodium carboxymethyl cellulose.
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Items
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Standards
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Appearance
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White to cream colored powder
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Particle Size
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Min 95% pass 80 mesh
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Purity(dry basis)
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98% Min
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Viscosity (2% solution, dry basis, 25°C)
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20 Max
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Degree of substitution
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0.7 Min
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pH (1% solution)
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6.0- 8.5
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Loss on drying
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10% Max
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Lead
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3 mg/kg Max
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Arsenic
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2 mg/kg Max
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Mercury
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1 mg/kg Max
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Cadmium
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1 mg/kg Max
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Total heavy metals (as Pb)
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10 mg/kg Max
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