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Thermo Scientific™ Carboxymethylcellulose sodium salt, average M.W. 90000 (DS=0.7)
Catalog No :
CAS Number :
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Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | Thermo Fisher Scientific™, thermo Scientific | ||
| Product Grade | Analytical grade | Formula | (C₁₂H₁₄O₉R₆)ₙ |
Thermo Scientific™ Carboxymethyl Cellulose, Sodium Salt (CMC-Na) is a high-purity, water-soluble cellulose derivative used as a viscosity modifier, stabilizer, thickener, binder, or suspending agent in a variety of scientific, industrial, pharmaceutical, and food applications. With an average molecular weight of 90,000 and a degree of substitution (DS) between 0.65 and 0.90, this granular powder delivers reliable rheological performance in aqueous systems.
This product conforms to high-quality specifications (≥99.5% assay) and is supplied free of heavy metals and toxic impurities. It is especially valued for its excellent water solubility, non-toxicity, and broad pH stability, making it ideal for research and industrial formulations.
Key Features
- High Purity: ≥99.5% assay with low heavy metal content (Pb ≤10 ppm, Hg ≤1 ppm)
- Water-Soluble: Easily dissolves in water, forming stable, viscous solutions
- Consistent Viscosity: 50–100 mPa·s (2% solution, Brookfield at 25 °C)
- Broad pH Compatibility: Stable in pH range of 6.5–8.0
- Multifunctional: Functions as a thickener, stabilizer, emulsifier, lubricant, and suspending agent
- Safe for Research Use: Free from harmful oxidizers; research use only (RUO)
Applications
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Industrial:
- Drilling muds (as a thickener)
- Detergents (soil-suspending agent)
- Resin emulsion paints, adhesives, textile sizing, printing inks
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Pharmaceuticals:
- Tablet excipients
- Suspending agent for oral and topical formulations
- Lubricant in artificial tear solutions
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Food & Cosmetics:
- Food stabilizer and thickener (non-toxic and inert)
- Emulsion stabilizer in creams and lotions
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Research:
- Viscosity control in biochemical assays
- Substrate in endoglucanase activity assays
- Model polymer for rheological and SANS studies
Technical Specifications
| Parameter | Value |
|---|---|
| CAS Number | 9004-32-4 |
| Molecular Formula | (C₁₂H₁₄O₉R₆)ₙ |
| Average Molecular Weight | ~90,000 g/mol |
| Degree of Substitution (DS) | 0.65 – 0.90 |
| Appearance (Form) | Granular powder |
| Appearance (Color) | White to light yellow |
| Assay | ≥99.5% |
| Viscosity | 50–100 mPa·s (2% solution at 25 °C) |
| pH (1% solution) | 6.5 – 8.0 |
| Solubility | Soluble in water |
| Loss on Drying | ≤10% (3–5 g, 105 °C, 2 h) |
| Impurities | Sodium glycolate ≤0.4%; NaCl ≤0.25% |
| Heavy Metals (Pb) | ≤10 ppm |
| Cadmium (Cd) | ≤1 ppm |
| Mercury (Hg) | ≤1 ppm |
| Arsenic (As) | ≤3 ppm |
| Infrared Spectrum | Conforms |
| Storage Conditions | Store at ambient temperature |
| Regulatory Status | Research Use Only (RUO) |
Ordering Information
| Catalog Number | Quantity | Packaging |
|---|---|---|
| 332601000 | 100 g | Glass bottle |
| 332600010 | 1 kg | Plastic bottle |
| 332600050 | 5 kg | Plastic drum |
Thermo Scientific™ Carboxymethyl Cellulose, Sodium Salt is a versatile, high-purity polymer for laboratories and industries requiring consistent viscosity, stability, and safety in aqueous formulations. Its broad utility across pharmaceutical, industrial, and research applications makes it a trusted choice for formulators, researchers, and production specialists.
- Pack Size: 1kg 100g 5kg