Contact Us

Company Name: Changzhou Guoyu Environmental S&T Co.,Ltd

Contact: Mr Only Chow

Tel: +86-519-8646-1213(802)

Fax: +86-519-8647-0317

Mobile: +86-134 0137 8537


Skype: only.chow

Whatsapp: 0086-13401378537

Address: Miaoqiao Street, Wujin District, Changzhou, Jiangsu, China

Zip: 213103

CMC Quality Terms

- Mar 18, 2015 -

The main indicator of the quality of the CMC(Carboxymethyl cellulose) is the degree of substitution (DS) and purity. DS is different from the general nature of the CMC is also different; the degree of substitution increases, the solubility is enhanced transparency and stability of the solution is also possible. According to reports, CMC degree of substitution of 0.7 to 1.2 when better transparency, viscosity of an aqueous solution at pH 6-9 maximum. In order to ensure its quality, in addition to select etherifying agent, but also must consider a number of factors influence the degree of substitution and purity, e.g., the relationship between the amount of the base and between the etherifying agent, etherification time, system water content, temperature, DH value, the solution concentration and salts....

Related Products