sodium carboxymethyl cellulose use

The versatile family of sodium carboxymethyl cellulose derivatives, also known as carboxy methyl cellulose or 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 - Sodium carboxymethyl cellulose reduces initial shear for degassing • Thermal stability - High-grade carboxy methyl cellulose performs at 150°C+ • Salt resistance - Sodium cmc maintains viscosity in brine environments Carboxy Methyl Cellulose Textile Uses Sizing agent - Sodium carboxymethyl cellulose strengthens warp yarns • Fabric finishing - Sodium cmc improves hand feel and stiffness • Print thickener - Carboxy methyl cellulose controls dye penetration • Emulsification - Sodium carboxymethyl cellulose aids fiber lubricants • Waste treatment - Sodium cmc flocculates textile effluents Specification Item Viscosity Brookfield 1%, 25oC ,cps Viscosity Brookfield 2%,25oC,cps Degree of Substitution Purity Ph Moisture Application Recommendation 20LF 25-50 0.7-1.0 ≥98.0% 6.0-8.5 ≤ 8.0% Juice 50LF 50-100 0.7-1.0 ≥98.0% 6.0-8.5 ≤ 8.0% Juice,Soft Drinking etc 500MF 100-500 0.7-1.0 ≥99.5% 6.0-8.5 ≤ 8.0% Soft Drinking 1000MF 500-2000 0.7-1.0 ≥99.5% 6.0-8.5 ≤ 8.0% Juice,Yogurt etc 300HF 200-400 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Juice, Milk Drinking etc 500HF 400-600 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Juice 700HF 600-800 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Ice Cream, Juice etc 1000HF 800-1200 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Juice, Instant Noodle etc 1500HF 1200-1500 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Juice, Yogurt, Instant Noodle etc 1800HF 1500-2000 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Juice, Yogurt, Instant Noodle etc 2000HF 2000-3000 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Bakery, Soft Drinking etc 3000HF 3000-4000 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Bakery etc 4000HF 4000-5000 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Bakery, Meat etc 5000HF 5000-6000 0.7-0.95 ≥99.5% 6.0-8.5 ≤ 8.0% Bakery, Meat etc 6000HF 6000-7000(ASTM) 0.7-0.9 ≥99.5% 6.0-8.5 ≤ 8.0% Bakery, Meat etc 7000HF 7000-8000(ASTM) 0.7-0.9 ≥99.5% 6.0-8.5 ≤ 8.0% Bakery, Meat etc 8000HF 8000-9000(ASTM) 0.7-0.9 ≥99.5% 6.0-8.5 ≤ 8.0% Bakery, Meat etc FH9 800-1200 (NDJ-79, 2%) Min.0.9 ≥97.0% 6.0-8.5 ≤10.0% Juice, Yogurt , Milk drinking etc FVH9 1800-2200 (NDJ-79, 2%) Min.0.9 ≥97.0% 6.0-8.5 ≤10.0% Juice, Yogurt , Milk drinking etc FH6 800-1200 (NDJ-79, 2%) 0.7-0.85 ≥97.0% 6.0-8.5 ≤ 10.0% Ice Cream FVH6 1800-2200 (NDJ-79, 2%) 0.7-0.85 ≥97.0% 6.0-8.5 ≤10.0% Bakery, Meat, Ice Cream Sodium CMC Paper Industry Benefits Wet-end additive - Sodium carboxymethyl cellulose increases dry strength 40-50% • Surface sizing - Carboxy methyl cellulose improves printability • Retention aid - Sodium cmc reduces filler loss • Recycling aid - Sodium carboxymethyl cellulose enhances repulpability • Coating binder - Carboxy methyl cellulose for glossy finishes Sodium Carboxymethyl Cellulose Consumer Products Toothpaste base - Sodium cmc provides optimal rheology • Detergent builder - Carboxy methyl cellulose prevents redeposition • Cosmetic thickener - Sodium carboxymethyl cellulose stabilizes emulsions • Food additive - Sodium cmc improves texture (E466) • Pharmaceuticals - Carboxy methyl cellulose tablet disintegrant Carboxy Methyl Cellulose Construction Uses Mortar additive - Sodium carboxymethyl cellulose improves workability • Tile adhesive - Sodium cmc enhances open time • Gypsum retarder - Carboxy methyl cellulose controls setting • Sprayed concrete - Sodium carboxymethyl cellulose reduces rebound Water retention - Sodium cmc prevents premature drying Sodium Carboxymethyl Cellulose FAQs Q: What are the primary applications of sodium carboxymethyl cellulose in the food industry? A: Sodium carboxymethyl cellulose (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 sodium carboxymethyl cellulose be used in water treatment processes? A: Yes, sodium carboxymethyl cellulose 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 carboxy methyl cellulose 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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