Product Name: Sodium Carboxymethyl Cellulose (CMC)
CAS No: 9004-32-4
Einecs No: 618-378-6
HS Code: 3912310000
Formula: [C6H7O2(OH)2OCH2C00Na]n
Grade Standard: Tech Grade, Food Grade
Appearance: White to yellowish fibrous powder
Packaging Details: 25KG/BAG, 1000KG/BAG
Application:
Food Industry: Thickening agent, emulsifier, water-retaining agent
Detergent: Surfactant, Anti-stain reattachment agent
Mining: Depressant, thickening agent
Printing & dyeing: Adhesive, sizing agent
Petroleum industry: Viscosity builder, filter loss reducer and detergent
Paper & pulp: Sizing agent
Water treatment: Flocculant
Specification
| Item | Range | Unit | Standard Grades | ||
|---|---|---|---|---|---|
| Food | Mining | Detergent | |||
| Purity (CMC) | ≥ | ω/% | 99.5 | 80 | 55 |
| Viscosity (1% solution, 25°C) | ~ | mPa·s | 20-6000 | 100-2000 | – |
| Viscosity (2% solution, 25°C) | ~ | mPa·s | – | – | 5-3000 |
| Degree of substitution | ~ | ω/% | 0.7-0.9 | 0.7-0.9 | 0.5-0.9 |
| PH (10g/L solution) | ~ | – | 6.0-8.5 | 6.5-8.0 | 8.0-11.5 |
| Moisture | ≤ | ω/% | – | 10 | 10 |
| Loss on drying | ≤ | ω/% | 8 | – | – |
| Sodium glycolate | ≤ | ω/% | 0.4 | – | – |
| Chloride (as NaCl) | ≤ | ω/% | 0.5 | – | – |
| Sodium (Na) | ≤ | ω/% | 12.4 | – | – |
| Arsenic (As) | ≤ | mg/kg | 2 | – | – |
| Lead (Pb) | ≤ | mg/kg | 2 | – | – |
