2. Sodium Carboxymethyl Cellulose(CMC)
Sodium carboxymethyl cellulose is white or yellowish powder that is odorless, tasteless and non-toxic. It has high hygroscopicity and is soluble in water to form thick liquid. It is a polyanionic electrolyte and is not fermented. It has good heat-stability, resistance to salt and film-forming characteristics. It is a strong emulsifier for fatty and oil.
Specification
| Item |
Index |
| |
LV-CMC |
MV-CMC |
HV-CMC |
| Appearance |
fluid white or light yellow powder,no agglomeration. |
| Moisture,% |
≤ 10 |
| Purity,% |
≥80.0 |
≥85.0 |
≥95.0 |
| Degree of Substitution,% |
≥0.80 |
≥0.65 |
≥0.80 |
| pH |
7.0-9.0 |
7.0-9.0 |
6.5-8.0 |
| Type |
Item |
Index |
distilled water |
saline solution |
saturated saline solution |
| Base Slurry |
filtration loss , ml |
60±10 |
90± 10 |
100± 10 |
apparent viscosity,mPa.S |
≤ 6 |
≤ 6 |
≤ 10 |
pH |
8.0±1.0 |
8.0±1.0 |
7.5±1.0 |
| HV-CMC |
mud yield ,m3/t |
≥200 |
≥150 |
≥160 |
| LV-CMC |
filtration loss is 10ml |
addition,g/l |
- |
≤7.0 |
≤10.0 |
apparent viscosit,mPa.S |
- |
≤4.0 |
≤6.0 |
| MV-CMC |
addition,g/l |
6.0 |
14.0 |
23.5 |
apparent viscosit,mPa.S |
≥15 |
≥15 |
≥15 |
filtration loss, ml |
≤9 |
≤9 |
≤8 |
1 2 3 4 |
