ONLINE CONTACT

Hỗ trợ yahoo
Vietnamchemtech


Skype

MSN

VIDEO CLIPS

Clean the plastic mold with Zclean

How to support phase polymer flocculation and sludge extractor
DAILY EXCHANGE RATES
  Gold rates
Unit: million VND/gold
Type Buy Sale

 Currency rates
VISITORS COUNTER

Online Users : 169

Today's Visitor : 17

Total Hit Counter : 110276

Sodium carboxyl methyl cellulose



Tải về


Product details:

- Product Name: Sodium carboxyl methyl cellulose

- Formulas : (CH2CO2H)n

- Chemical composition : China-Food-25kg

- Product Type: Industry chemicals

Product description :

Carboxymethyl cellulose (CMC) or cellulose gum[1] is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. It is often used as its sodium salt, sodium carboxymethyl cellulose.

Uses
CMC is used in food science as a viscosity modifier or thickener, and to stabilize emulsions in various products including ice cream. As a food additive, it has E number E466. It is also a constituent of many non-food products, such as K-Y Jelly, toothpaste, laxatives, diet pills, water-based paints, detergents, textile sizing and various paper products. It is used primarily because it has high viscosity, is non-toxic, and is hypoallergenic. In laundry detergents it is used as a soil suspension polymer designed to deposit onto cotton and other cellulosic fabrics creating a negatively charged barrier to soils in the wash solution. CMC is used as a lubricant in non-volatile eye s (artificial tears). Sometimes it is methyl cellulose (MC) which is used, but its non-polar methyl groups (-CH3) do not add any solubility or chemical reactivity to the base cellulose.
Following the initial reaction the resultant mixture produces approximately 60% CMC plus 40% salts (sodium chloride and sodium glycolate). This product is the so-called Technical CMC which is used in detergents. A further purification process is used to remove these salts to produce pure CMC which is used for food, pharmaceutical and dentifrice (toothpaste) applications. An intermediate "semi-purified" grade is also produced, typically used in paper applications.
CMC is also used in pharmaceuticals as a thickening agent. CMC is also used in the oil drilling industry as an ingredient of drilling mud, where it acts as a viscosity modifier and water retention agent. Poly-anionic cellulose or PAC is derived from CMC and is also used in oilfield practice.
Insoluble microgranular carboxymethyl cellulose is used as a cation-exchange resin in ion-exchange chromatography for purification of proteins.[2] Presumably the level of derivatization is much lower so that the solubility properties of microgranular cellulose are retained while adding sufficient negative charged carboxylate groups to bind positively charged proteins.
CMC is also used in ice packs to form a eutectic mixture resulting in a lower freezing point and therefore more cooling capacity than ice.[3]
Aqueous solutions CMC have also been used to disperse carbon nanotubes. It is thought that the long CMC molecules wrap around the nanotubes, allowing them to be dispersed in water.

SAME PRODUCTS


Vichemfloc 70010-Nonionic flocculant



Vichemfloc 62424-Anion flocculant



Sodium chloride



Caustic soda pearl 99%



Gibberellic acid



Caustic soda flakes 99%



Epoxy E44 & Hardener T31



Vichemfloc 62414



Na2EDTA



Calcium hypochlorite - 70%



Trichloroisocyanuric acid



EO Cleaner - Heavy-duty degreasing detergent



Sodium citrate



Sodium hexamethaphosphate



Sodium Benzoate



Antracite



Mercury - Hg - Japan - 1.5kg



Hydrofluoric acid



Benzyl alcohol



Sodium sulphide nonahydrate



Nitric acid - HNO3 - Korea - 68% - 35kg



Sodium Nitrite



Sodium dichloroisocyanurate



Potassium Sodium Tartrate



Sodium Nitrate


Vietnam Chemical New Technology Joint Stock Company

© Copyright 2011 WebDesigner Group. All rights Reserves.