Standards for Sodium Carboxymethylcellulose/ Polyanionic cellulose

Sodium carboxymethylcellulose (CMC) and polyanionic cellulose (PAC) are cellulose derivatives widely used in various industries, including food, pharmaceuticals, cosmetics, and oil drilling. These materials often adhere to specific standards to ensure quality, safety, and consistency in their applications. Here are some commonly referenced standards for sodium carboxymethylcellulose and polyanionic cellulose:

Sodium Carboxymethylcellulose (CMC):

1. Food Industry:
   • E466: This is the international numbering system for food additives, and CMC is assigned the E number E466 by the Codex Alimentarius Commission.
   • ISO 7885: This ISO standard provides specifications for CMC used in food products, including purity criteria and physical properties.
2. Pharmaceutical Industry:
   • USP/NF: The United States Pharmacopeia/National Formulary (USP/NF) includes monographs for CMC, specifying its quality attributes, purity requirements, and testing methods for pharmaceutical applications.
   • EP: The European Pharmacopoeia (EP) also includes monographs for CMC, detailing its quality standards and specifications for pharmaceutical use.

Polyanionic Cellulose (PAC):

1. Oil Drilling Industry:
   • API Spec 13A: This specification issued by the American Petroleum Institute (API) provides requirements for polyanionic cellulose used as a drilling fluid additive. It includes specifications for purity, particle size distribution, rheological properties, and filtration control.
   • OCMA DF-CP-7: This standard, published by the Oil Companies Materials Association (OCMA), provides guidelines for the evaluation of polyanionic cellulose used in oil drilling applications.

Conclusion:

Standards play a crucial role in ensuring the quality, safety, and performance of sodium carboxymethylcellulose (CMC) and polyanionic cellulose (PAC) in various industries. Compliance with relevant standards helps manufacturers and users maintain consistency and reliability in their products and applications. It’s essential to refer to the specific standards applicable to the intended use of CMC and PAC to ensure proper quality control and regulatory compliance.