This product is the sodium salt of cellulose carboxymethyl ether. It is an anionic cellulose ether. It is a white or milky white fibrous powder or granule with a density of 0.5-0.7 g/cm3. It is odorless and hygroscopic. It is easy to disperse in water to form a transparent colloidal solution and is insoluble in organic solvents such as ethanol. The pH of the 1% aqueous solution is 6.5-8.5. When the pH is >10 or <5, the viscosity of the gel is significantly lowered, and the performance is optimal at pH=7. For heat stability, the viscosity rises rapidly below 20 °C, and the temperature changes slowly at 45 °C. The long-term heating above 80 °C can denature the colloid and the viscosity and performance are significantly reduced. Soluble in water, the solution is transparent; it is very stable in alkaline solution, it is easy to be hydrolyzed when it is acid, and precipitation will occur when the pH is 2-3, and precipitation will occur in the case of polyvalent metal salts.
| Type | Viscosity | Degree of substitution | Other specifications |
| FL 100* | 100~150 | ≥0.9 | GB1886.232-2016 Assay:≥99.5% pH:6.0-8.5 Loss on drying:≤8% Sodium Glycolate≤0.4% Chlorides(As NaCI)≤0.5% Na:≤12.4% As:≤0.00002% Pb:≤0.0002% |
| FM6* | 400~2000 | ≥0.7 | |
| FH9* | 800~1200 | ≥0.9 | |
| FH9 | 200~500 | ≥0.9 | |
| FVH6* | 1200~2000≤2000 | ≥0.7 | |
| GFH9 | 200~500 | ≥0.9 Acid viscosity ratio≥0.7 |
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| FVH9* | 800~1200≥1200 | ≥0.9 | |
| FH2000S | 2000~3000 | 0.7~0.9 | |
| FH3000S | 3000~4000 | 0.7~0.9 | |
| FH4000S | 4000~5000 | 0.7~0.9 | |
| FH5000S | 5000~6000 | 0.7~0.9 | |
| FH6000S | 6000~7000 | 0.7~0.9 | |
| FH70000A | 7500~10000 | 0.8~0.9 | |
| Types with*:viscosity of 2% water solution.Others:viscosity of 1% water solution | |||
Carboxymethyl cellulose (CMC) is non-toxic and odorless white flocculent powder, stable in performance, and easily soluble in water.Its aqueous solution is neutral or alkaline transparent viscous liquid, soluble in other water-soluble gums and resins, insoluble In ethanol and other organic solvents. CMC can be used as a binder, thickener, suspending agent, emulsifier, dispersant, stabilizer, sizing agent and so on.
(1) There is no solid-liquid separation between the CMC and the water.
(2) The mixed paste has a uniform and uniform surface with smooth surface;
(3) The color of the mixed paste is nearly colorless and transparent, and there is no granular object in the paste. The CMC is introduced into the batching tank and mixed with water, until the CMC is completely dissolved, and the time required is between 10 and 20 hours.
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