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[P] Hydroxypropyl-methyl cellulose
![[P] Hydroxypropyl-methyl cellulose](http://img.ecol.xyz/photo/product150/910446/big-p-hydroxypropyl-methyl-cellulose.jpg)
Related Product Searches:[P] Hydroxypropyl-methyl cellulose,High Quality,9004-65-3, hpmc
Hydroxypropyl-methyl cellulose (HPMC)
CAS: 9004-65-3
Specifications
Table 1. Specifications of HPMC
Items | Specifications | ||||
MC | HPMC | ||||
MA | HF | HG | HJ | HK | |
Methoxy content (%) | 27.5-31.5 | 27.0-30.0 | 28.0-30.0 | 16.5-20.0 | 19.0-24.0 |
Hydroxypropyloxy content (%) | / | 4.0-7.5 | 7.5-12.0 | 23.0-32.0 | 4.0-12.0 |
Loss on drying,% | 5.0 max | ||||
Residue on ignition,% | 1.5 max | ||||
Heavy metals, ppm | 20 max | ||||
Arsenic, ppm | 3 max | ||||
pH | 5.0~8.0 | ||||
Bacterium | 1000cfu/gram Max | ||||
Mold | 100cfu/gram Max | ||||
Viscosity(2% solution), mPa.s | In accordance with the viscosity specification as shown in table 2. | ||||
Table 2. Viscosity specification of MC&HPMC
Level | Specific range (2% Sol.),mPa.s | Level | Specific range (2% Sol.),mPa.s |
5 | 4~6 | 4000 | 3000~5600 |
15 | 12~18 | 8000 | 6000~9000 |
25 | 20~30 | 10,000 | 9000~12000 |
50 | 40~60 | 15,000 | 12000~18000 |
100 | 80~120 | 20,000 | 18000~30000 |
400 | 300~500 | 40,000 | 30000~50000 |
800 | 600~900 | 100,000 | 85000~130000 |
1500 | 1000~2000 | 200,000 | ≥180000 |
Note The viscosity can be adjusted according to the special requirements of the customers.
[P] Hydroxypropyl-methyl cellulose