| |
 Hydroxypropyl Mthyl Cellulose(HPMC) |
R-CH3 ,R-CH2CH2OHCH3
HPMC specification
|
Item
Brand No |
ME |
MF |
MJ |
MK |
|
Hydroxypropyl,wt% |
7.5-12 |
4.0-7.5 |
23.0-32.0 |
4.0-12.0 |
|
Methoxy, wt% |
28.0-30.0 |
27.0-30.0 |
16.5-20.0 |
19.0-24.0 |
|
Ash, wt% |
≤1.0 |
≤1.0 |
≤1.0 |
≤1.0 |
|
Water, wt% |
≤5.0 |
≤5.0 |
≤5.0 |
≤5.0 |
|
Gel temp,℃ |
58-64 |
62-68 |
70-75 |
70-90 |
|
PH Value |
4-8 |
|
Appearance |
White powder or granule |
|
Fineness, mesh |
80,100,120 |
|
Viscosity mPa.s |
See viscosity table |
Viscosity index
|
Viscosity (mpas) |
Viscosity range of 2% water solution(mpas) |
Viscosity (mpas) |
Viscosity range of 2% water solution(mpas) |
|
5 |
3-9 |
15000 |
13000-17000 |
|
15 |
10-20 |
20000 |
18000-22000 |
|
25 |
20-30 |
40000 |
36000-45000 |
|
50 |
40-60 |
60000 |
56000-65000 |
|
400 |
300-500 |
75000 |
70000-80000 |
|
1500 |
1200-1800 |
100000 |
85000-130000 |
|
4000 |
3600-5500 |
150000 |
130000-180000 |
|
8000 |
7000-9000 |
200000 |
≥180000 |
|
10000 |
9000-11000 |
|
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| QUALITY INDEX OPERATION METHOD |
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