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Contact SuppliersCAS NO.9004-32-4
CAS NO.9004-32-4
Carboxymethylcellulose Sodium is a semisynthetic water-soluble polymer in which CH2COOH groups are substituted on the glucose units of the cellulose chain through an ether linkage.
CMC-Na is a kind of cellulose ether with anion contour's high molecular structure. It has no smell, no taste and no toxicity. The white to off-white powder and graininess can be easily melt in water and become colloidal solution, but it can't melt in alcohol, ether, acetone and other organic solvent.
Usage: Carboxymethylcellulose Sodium can increase the viscosity of solution, it is considered potentially harmless biologically to the human. Therefore it widely used in food-making, detergent, papermaking, oil-drilling, textile, dyeing, ceramics, construction, paint, welding, battery, medicine, tobacco, toothpaste, cosmetics, etc.
⑴ The drilling, well-digging of petroleum and natural gas.
① The CMC slurry can form a filter cake on the wall of well to lower the water loss of well;
② CMC can help slurry releasing the gas and discharging the broken matter;
③ CMC can prolong the existing period of drilling fluid;
④ CMC drilling fluid is seldom infected by mould, the high PH value and antiseptic are unnecessary;
⑤ CMC can be used as flush fluid to reduce the pollutation of soluble-salts;
⑥ CMC slurry can work well in 150℃;
⑵ Used as sizing agent of cotton, silk, wool, chemical fiber and blending textile.
⑶ Used as smoothing agent and sizing agent of papermaking, 0.1%～0.3% of CMC can increase 40%
50% of intension, 50% of compression breakage resistance and 4 to 5 times of flexibility.
⑷ Used as dirty adsorbent of detergent, the gel base of toothpaste, thickening agent and emulsifier of
medicine, or used as mine selection.
⑸ Used as adhesive, plasticizer, suspending agent , color fixative of material.
⑹ Used in construction for water-keeping and reinforcement.
⑺ Used as thickening agent, adhesive and shaping agent of jam, juice, fruit juice, cake and ice cream.
1. Pharmaceutical Grade
|
Items |
Specification |
|
Appearance |
White or a little Yellow, Odorless Powder or Granules |
|
Viscosity |
300mpa.s – 1200mpa.s (2% aqueous solution, 25℃) |
|
Sodium Content |
6.5% – 8.5% |
|
PH Value |
6.5 – 8.0 |
|
Chloride (Cl-) |
1.8% Max. |
|
Loss on Drying |
7.0% Max. |
|
Heavy Metals |
0.001% Max. |
|
Arsenic |
0.0002% Max. |
|
Iron |
0.016% Max. |
2. Food Grade
|
Items |
Specification |
|
Appearance |
White or a little Yellow, Odorless Powder or Granules |
|
Viscosity (2% aqueous solution, 25℃) |
400mpa.s – 1200mpa.s, ≥1200mpa.s |
|
Sodium Content |
6.5% –9.5% |
|
PH Value |
6.5 – 8.0 |
|
Chloride (Cl-) |
1.8% Max. |
|
Loss on Drying |
10.0% Max. |
|
Heavy Metals |
0.002% Max. |
|
Arsenic |
0.0002% Max. |
|
Iron |
0.03% Max. |
|
Ratio of Acid to Viscosity |
0.82 Min. |
|
Ratio of Salt to Viscosity |
1 Min. |
|
Enterobacterias |
100cfu/g Max. |
3. Industry Grade (Papermaking)
|
Items |
Specification |
|
Appearance |
White or a little Yellow, Odorless Powder or Granules |
|
Viscosity (4% aqueous solution, 25℃) |
50mpa.s – 500mpa.s, 1000mpa.s – 2000mpa.s |
|
D.S |
0.8 Min. |
|
PH Value |
6.5 – 8.0 |
|
Chloride (NaCl) |
5% Max. |
|
Loss on Drying |
10.0% Max. |
|
Heavy Metals |
0.003% Max. |
|
Arsenic |
0.0005% Max. |
|
Iron |
0.03% Max. |
|
Fineness (60meshes) |
80% Min. |
4. Industry Grade (Oil Drilling)
|
Items |
Specification |
|
Appearance |
White or a little Yellow, Odorless Powder |
|
D.S |
0.65 Min. |
|
PH Value |
6.5 – 9.0 |
|
Moisture Content |
10.0% Max. |
|
Purity |
80 Min. |
Note: The four grades are only part of our products, we can produce more grades, such as Building Grade, Toothpaste Grade, Textile Grade and so on, following your specific requirements.