Sodium Carboxymethyl Cellulose Derivatives

The versatile family of carboxyméthylcellulose sodique derivatives, also known as carboxyméthylcellulose ou sodium cmc, serves as essential functional additives across multiple industries. As a leading chemical manufacturer, we examine the properties and applications of these modified cellulose compounds that have earned the nickname "industrial MSG" for their widespread utility.

Sodium Carboxymethyl Cellulose Oilfield Applications

• Drilling fluid additive- Carboxy methyl cellulose controls water loss in mud systems
  • Filter cake formation - Sodium cmc creates low-permeability wellbore coatings
  • Gas release - Carboxyméthylcellulose sodique reduces initial shear for degassing
  • Thermal stability - High-grade carboxyméthylcellulose performs at 150°C+
  • Salt resistance - Sodium cmc maintains viscosity in brine environments
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Carboxy Methyl Cellulose Textile Uses

• Sizing agent - Carboxyméthylcellulose sodique strengthens warp yarns
• • Fabric finishing - Sodium cmc improves hand feel and stiffness
  • Print thickener - Carboxy methyl cellulose controls dye penetration
  • Emulsification - Carboxyméthylcellulose sodique aids fiber lubricants
  • Waste treatment - Sodium cmc flocculates textile effluents

Sodium CMC Paper Industry Benefits

• Wet-end additive - Carboxyméthylcellulose sodiqueincreases dry strength 40-50%
  • Surface sizing - Carboxy methyl cellulose improves printability
  • Retention aid - Sodium cmc reduces filler loss
  • Recycling aid - Carboxyméthylcellulose sodique enhances repulpability
  • Coating binder - Carboxy methyl cellulose for glossy finishes
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Sodium Carboxymethyl Cellulose Consumer Products

• Toothpaste base - Sodium cmcprovides optimal rheology
  • Detergent builder - Carboxy methyl cellulose prevents redeposition
  • Cosmetic thickener - Carboxyméthylcellulose sodique stabilizes emulsions
  • Food additive - Sodium cmc improves texture (E466)
  • Pharmaceuticals - Carboxy methyl cellulose tablet disintegrant
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Carboxy Methyl Cellulose Construction Uses

• Mortar additive - Carboxyméthylcellulose sodiqueimproves workability
  • Tile adhesive - Sodium cmc enhances open time
  • Gypsum retarder - Carboxy methyl cellulose controls setting
  • Sprayed concrete - Carboxyméthylcellulose sodique reduces rebound
• Water retention - Sodium cmcprevents premature drying

Sodium Carboxymethyl Cellulose FAQs

Q: What are the primary applications of carboxyméthylcellulose sodique in the food industry?

A: Carboxyméthylcellulose sodique (Sodium CMC) is widely used as a thickener, stabilizer, and emulsifier in foods like ice cream, salad dressings, and bakery products. It prevents ice crystal formation in frozen desserts, improves texture in sauces, and acts as a fat replacer in low-calorie products.

Q: How does carboxy methyl cellulose differ from other cellulose derivatives?

A: Carboxy methyl cellulose (CMC) stands out for its high water solubility and ability to form viscous solutions at low concentrations. Unlike methylcellulose or hydroxypropyl methylcellulose, CMC has carboxymethyl groups that enhance its ionic properties, making it ideal for applications requiring pH stability and electrolyte tolerance.

Q: What safety regulations apply to sodium CMC in pharmaceutical formulations?

A: Sodium CMC is classified as GRAS (Generally Recognized as Safe) by the FDA and is approved in pharmaceuticals as an excipient for tablets, ophthalmic solutions, and topical creams. It must meet USP/NF purity standards, with limits on heavy metals and microbial contaminants.

Q: Can carboxyméthylcellulose sodique be used in water treatment processes?

A: Yes, carboxyméthylcellulose sodique acts as a flocculant and stabilizer in water treatment. Its anionic nature helps remove heavy metals and suspended particles by binding to contaminants, improving sedimentation efficiency in industrial and municipal wastewater systems.

Q: How does the degree of substitution (DS) affect the properties of carboxy methyl cellulose?

A: The DS of carboxyméthylcellulose influences its solubility, viscosity, and salt tolerance. Higher DS (0.8–1.2) provides better solubility in acidic conditions and resistance to electrolytes, making it suitable for acidic foods and personal care products. Lower DS grades (0.5–0.7) are preferred for applications requiring gel formation, such as in ceramic glazes.

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