419338

Sodium carboxymethyl cellulose

average M_w ~700,000

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

Properties

• form: powder
• autoignition temp.: 698 °F
• mol wt: average M_w ~700,000
• extent of labeling: 0.9 carboxymethyl groups per anhydroglucose unit
• mp: 270 °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 as a binder in the preparation of graphene nano-platelet based inks for the fabrication of dye sensitized solar cells (DSSCs). It can also be used as a viscosity enhancer in the development of tyrosinase based inks for the formation of electrodes for biosensor applications. CMC is used as a support material for a variety of cathodes and anodes for microbial fuel cells.

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