Zhejiang Daohe Chemical Co., Ltd.

    Products

 

Cellulose ether series

Pharmaceutical & food grade Methyl Cellulose (MC),
Hydroxypropyl Methyl Cellulose (HPMC)

Product properties and applications

This product is non-ionic cellulose ether, having salt resistance, surface activity, thermal gelation property, PH stability, water retention, film formation, adhesion and other properties. As a multi-purpose pharmaceutic adjuvant it can be used as thickener, dispersant, emulsifier and film-former. Used for film coating, adhesive in tablets, it can significantly increase the drug solubility, and enhance waterproof of tablets. It can be also used for suspension agent, ophthalmic preparations, controlling release agents such as skeleton floating tablets together. It can be directly used for food as emulsifier, binder, thickener and stabilizer; and it also can be used directly as a food packaging material.


Porduct specification

Meet the China Pharmacopoeia NF standard, United States Pharmacopoeia USP standard, the European Pharmacopoeia EP standard.

1. Physical & chemical properties

Items

Specification

MC

HPMC

Methoxyl content, MeO %

27.0~32.0

19.0~30.0

hydroxypropoxyl content, HPO %

-

4.0~12.0

Residue on ignition,%

≤1.0

1.5

Loss on drying,%

≤5.0

PH

4.0~8.0

Water insoluble substance,%

≤0.5

heavy metals,%

≤0.002

Arsenic salt,%

≤0.0002

2  viscosity specification

Spec.

viscosity range mPa.s

 

Spec.

viscosity range mPa.s

5

4~7

8000

6400~9600

15

11~21

10000

8000~12000

25

18~35

15000

12000~18000

50

38~70

20000

16000~24000

100

80~120

40000

32000~48000

400

320~480

75000

60000~90000

800

640~960

100000

80000~120000

1500

1200~1800

150000

120000~180000

4000

3200~4800

200000

≥180000

Note: Viscosity values above are of 2% water solution detected by NDJ viscometer, 20℃.



Note: We could provide special specifications according to customers requriements.