Sodium Citrate — Food Grade

Product Introduction

Basic Information

· Molecular Formula: C₆H₅Na₃O₇·2H₂O (Dihydrate) / C₆H₅Na₃O₇ (Anhydrous)

· Molecular Weight: 294.10 (Dihydrate) / 258.07 (Anhydrous)

· CAS No.: 6132-04-3 (Dihydrate) / 68-04-2 (Anhydrous)

· Executive Standard: GB 1886.25-2016 / FCC / E331 / BP / EP / USP

· Appearance: Colorless crystals or white crystalline powder / granules. Odorless, with a cool, saline taste. Freely soluble in water and glycerol, practically insoluble in ethanol. Slightly deliquescent in humid air and slightly efflorescent in hot air; loses its water of crystallization at 150 °C. pH of a 5% aqueous solution: 7.5 – 9.0

· Packaging: 25 kg net composite paper-plastic bag or 3-ply kraft paper bag with PE liner; 500 kg / 1000 kg net PP woven jumbo bag with PE liner. Customized packaging available on request

· Storage & Shelf Life: Store in a clean, dry, well-ventilated warehouse, protected from moisture and kept away from toxic substances. Shelf life: 2 years in unopened original packaging

Specification

Note: Values conform to GB 1886.25-2016 and also meet FCC / E331 requirements. Pharmaceutical Grade (BP / EP / USP) available on request.

Application

· Food & Beverage: Serves as an acidity regulator, buffering agent, flavor enhancer, stabilizer and emulsifier. Widely used in soft drinks, juices, jams and jellies, dairy products, processed meats, instant foods and wine, where it adjusts pH, improves flavor, enhances the salty perception while reducing sodium intake, and helps chelate metal ions to prevent oxidation and discoloration.

· Pharmaceutical & Medical: Acts as an anticoagulant for blood preservation and transfusion, an expectorant, a diuretic and a buffering agent. Applied in dialysis solutions, effervescent tablets, oral and injection formulations, and as a pH-adjusting agent in various pharmaceutical preparations.

· Detergent & Cleaning: Used as a non-toxic, biodegradable builder that can substitute Sodium Tripolyphosphate (STPP), providing chelation, alkalinity buffering and anti-redeposition effects in household, industrial and dishwashing detergents.

· Personal Care & Cosmetics: Functions as a pH adjuster, buffer and chelating agent in shower gels, shampoos, skin-care emulsions, deodorants and oral care products, improving formulation stability and sensory feel.

· Industrial & Technical: Extensively applied in electroplating baths, photographic developers and fixers, boiler and heat-transfer fluids, textile processing, construction admixtures, oil drilling fluids and metal surface treatment.