419273

Sodium carboxymethyl cellulose

average M_w ~90,000

• Synonym(s): Carboxymethylcellulose sodium salt
• CAS Number: 9004-32-4
• MDL number: MFCD00081472
• UNSPSC Code: 12162002
• NACRES: NA.23

Properties

• form: powder
• Quality Level: 200
• autoignition temp.: 698 °F
• mol wt: average M_w ~90,000
• extent of labeling: 0.7 carboxymethyl groups per anhydroglucose unit
• mp: 274 °C (dec.)
• InChI: 1S/C6H12O6.C2H4O2.Na/c7-1-3(9)5(11)6(12)4(10)2-8;1-2(3)4;/h1,3-6,8-12H,2H2;1H3,(H,3,4);
• InChI key: DPXJVFZANSGRMM-UHFFFAOYSA-N

Description

General description

Sodium carboxymethyl cellulose (CMC) is a water dispersible sodium salt of carboxy-methyl ether of cellulose that forms a clear colloidal solution. It is a hygroscopic material that has the ability to absorb more than 50% of water at high humidity. It is also a natural polymeric derivative that can be used in detergents, food and textile industries.

Application

CMC can be used to stabilize palladized iron nanoparticles, which can further be utilized in the dichlorination of contaminated subsurfaces. It may also be used as a polymeric matrix to form a composite with a crystalline nanofibril for the development of sustainable bio-based polymers. CMC can also bind with a hard carbon electrode for the fabrication of sodium ion-batteries.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves