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Spec.\type | CMC FM6 | CMC FH6 | CMC FM9 | CMC FH9 | CMC FH9-A | CMC FVH6 | CMC FVH9 |
Degree of Substitution (DS) | ≥0.60 | ≥0.60 | ≥0.90 | ≥0.90 | ≥0.90 | ≥0.60 | ≥0.90 |
Viscosity(2%solution,NDJ-79 viscometer,25°C),mPa·s | 300 ~ 800 | 800 ~ 1200 | 300 ~ 800 | 800 ~ 1200 | 1500 ~ 2200 | 1500 ~ 2200 | 1500 ~ 2200 |
Chloride(as Cl-),% | ≤1.2 | ≤1.2 | ≤1.2 | ≤1.2 | ≤1.2 | ≤1.2 | ≤1.2 |
Acidviscosity ratio | - | - | - | - | ≥0.82 | - | - |
Loss ondrying,% | ≤10.0 | ≤10.0 | ≤10.0 | ≤10.0 | ≤10.0 | ≤10.0 | ≤10.0 |
pH(1%solution,25°C) | 6.0 ~ 8.5 | 6.0 ~ 8.5 | 6.0 ~ 8.5 | 6.0 ~ 8.5 | 6.0 ~ 8.5 | 6.0 ~ 8.5 | 6.0 ~ 8.5 |
Heavymetal(asPb),% | ≤0.0015 | ≤0.0015 | ≤0.0015 | ≤0.0015 | ≤0.0015 | ≤0.0015 | ≤0.0015 |
Fe,% | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 |
As,% | ≤0.0002 | ≤0.0002 | ≤0.0002 | ≤0.0002 | ≤0.0002 | ≤0.0002 | ≤0.0002 |
CMC (Carboxymethyl cellulose)