Audited Supplier
Sodium Carboxymethylcellulose sodium,White powder.Density 0.5-0.7 g/cm ³, almost odorless, tasteless, hygroscopic. Easy to disperse in water into a transparent colloidal solution, insoluble in organic solvents such as ethanol. The pH of 1% aqueous solution is 6.5 ~ 8.5, when pH>10 or <5, the viscosity of glue is significantly reduced, and the performance is best when pH=7. Stable to heat, the viscosity rises rapidly below 20 ° C, changes slowly at 45 ° C, and long-term heating above 80 ° C can denature its colloid and significantly decrease its viscosity and performance. Easily soluble in water, the solution is transparent; In alkaline solution is very stable, in the case of acid is easy to hydrolysis, PH value is 2-3 when precipitation, in the case of polyvalent metal salts will also react precipitation.
25kg/bag
| Item | Standard |
| Physical Form | White to off-white powder |
| Viscosity(1% mPa.S) | 3000-4000 |
| Degree of Substitution | 0.70-0.90 |
| Purity,% | 99.5min |
| pH Value 1% | 6.5-8.5 |
| Loss on drying, % | 8.0max |
| Sodium Chloride, % | 0.5max |
| Heavy Metals (As Pb), ppm | 10.0max |
| lron, ppm | 2max |
| Lead, ppm | 2max |
| As, ppm | 3max |
| Hg, ppm | 1maX |
| Cd,ppm | 1maX |
| Total plate count, cfu/g | 500/g max |
| Yeast & Moulds, cfu/g | 100/g max |
| E.Coli, cfu/g | Nil/g |
| Coliform bacteria, mpn/g | Nil/g |
| Salmonella, cfw/g | Ni1/25g |
