Model Number

st-2

Chinese biggest manufacturer and supplier of HPMC,MC,EC,HEMC,HPC including pharma grade,industrial grade,food grade,PVC  grade

1) Cellulose Hydroxyl Propyl Methyl Cellulose (HPMC) Hydroxyl Ethyl Cellulose (HEC) Hydroxyl Propyl Cellulose (HPC) Methyl Hydroxy Ethyl Cellulose (MHEC) Ethyl Cellulose (EC) Methyl Cellulose (MC)

Product name and chemical structure
Chemical Name: Ethyl Cellulose Ether (EC)
Chemical Structure


Main Specifications of Pharmaceutical Grade
(Comforming to Q/09 FRT005-2000 and standard of USP24/NF19)
Item specificatio
Index
K N T
Ethoxyl content:wt% 45.5~46.8 47.5~49.5 49.6~52.0
Moisture: wt% ≤3.0 ≤3.0 ≤3.0
Ash content: wt% ≤0.4 ≤0.4 ≤0.4
Heavy metals:ppm ≤40 ≤40 ≤40
Viscosity:mpa.s 7,10,20 50,100 200,300
Notice: average gram substitution value of ethy/cellulose DS=2.3~2.6

Main Specification of Industral Grade
Iterm K N T
Ethoxyl content:wt% 45.5~46.8 47.5~49.5 >49.5
Moisture: wt% ≤3.0 ≤3.0 ≤3.0
Ash content: wt% ≤0.4 ≤0.4 ≤0.4
Viscosity:mpa.s 5, 7, 10, 20 , 50, 100 , 200, 300

Physical Properties
The product is a white or light grey mobile powder with odourless and tasteless soft temperature:135-155°C. Bulk density:0.3-0.4g/cm3, Relative density: 1.07-1.18, melting point 165-185°C.It soesn?t dissolve in water, but dissolves in many organic solvents.

Important characteristics
Ethl Cellulose(DS:2.3~2.6) is a nonionic cellulose ether.
1.Uneasy to burn. 2. Good thermostability and excellent theroplasticity.
3. Not discolor by sunlight. 4. Good flexibility.
5. High dielectricity.
6. Excellent bast-resisting and acid-resisting capability.
7. Fine anti-ageing capability. 8.Good salt-tolerance and cold-resistant.
9. Stable for chemicals, and not deteriorate for a long time.
10. EC can company with a lot of esinr and all plastizer.

Usage
Pharmaceuticals
Ec can be used as film former, binder, dispering agent, stablizer, water conserving agent and slow-releasing agent in many kinds of mediline types to keep mediline from moisture discolor amd deterioration, which makes drugs store salfly. In addition, it makes drug?s efficacy continue because it can from slowly releasing glue film, which avoids some water soluble drug take efficacy ahead of time.
Coating industry
Ec can make up some printing and coating, the coating films have good glossiness and excellent stickening capabilty and flexibility.
Plastic industry
Ec can make up the plastic powder which is easy to take shape, cold-resistant plastic soft or hard plastic, and transparent plastic form or flake.
In other industry
Ec is used as temporary coating for fluoresent lamp tube, to raise the viscosity of phosphorand harden the glasses? surface. In addition, it is used in electricity conductive printing unk which is used in the base ment foake in integrated circuit, also used as binder in rocket propellant or gun shooting material.
Dissolving
The usual used solvents of EC(DS:2.3~2.6) are arene and orgnic acid. The arene are benzene, ethylbene and xylene, use percent: 60~80%. The acid are formic acid aceticacid etc. use percent:20~40%. Ec is slowly added to vessel with orgnic solvent while stirring , until it is completely wet and dissolved.

Package
It is packed in cardboard drum (lined with polyethene bag). Net weight:20kg per drum.

Product name and chemical structure
High-Substituted Hydroxypropyl Cellulose (H-HPC)
Chemical structure:

Specifications: (Q/09FRT002-1998) Conforming to Standard USP24/NF19
Items Unit Index
Hydroxyproxyl content Wt% 60-66
Moisture Wt% Not more than 5
PH Value 5.0-8.5
Ash Content Wt% Not more than 0.5
Chlorides (NaCl) Wt% Not more than 0.2
Heavy Metals ppm Not more than20
Arsenic ppm Not more than 2.0
Viscosity Mpa.s 6.0-10 1*
150-400 2*
Note:Measured the values of an aqueous solution containing 2% by weight of dry HPC at 20°C Measured the values of an aqueous solution containing 5% by weight of dry HPC at 25°C
Specification:(Q/09FRT002-2001)
Items Unit Index
Hydroxyproxyl content Wt% 60-66
Moisture Wt% ≤5
PH Value 5.0-8.5
Ash Content Wt% ≤0.5
Viscosity:
Specification Density (%) Temperature (°C) Viscosity (mpa.s)
RT-H 1 25±0.2 1500-2500
RT-G 2 25±0.2 150-400
RT-J 5 25±0.2 150-400
RT-L 5 25±0.2 75-150
RT-M 2 25±0.2 4000-6500

Physical properties
Appearance: white or nearly white powder with tasteless and odourless.
Particle size:99% passes through 20 mesh sieve. 95% passes through 30 mesh sieve. Bulk density:0.5-0.6g/ml specific gravity of paticles :1.2224
Thermal stabillity:Browing temperature:195-210°C;Charring temperature:260-275°C,
Soft temperature:130°C
In water: clear and transparent solution below 38°C.

Important characteristics
It dissolves at ordinary temperature in water or in any organic solvents, such as absolute methanol, ethanol, isopropanol propylene glycol and methylence chloride, also in acetone, chloroform, toluene or cellosolves. The solution is very clear and transparent.
HPC is a highly thermoplastice substance and shows an excellent film forming property. The film obtained is very tough. Ash content is exceedingly low, so that the product has excellent binding property, stabilizing property for viscosity-increasing emulsions and in dispersibility.
HPC shows no medicinal action by itself, has no toxlcity and is physiologically harmless.
HPC is chemically inert, so that it hardly reacts with other reagents.
The addition of antifungous agents is not necessary when HPC is used.
Equilibrium moisture content of H-HPC is low.

Process for dissolving H-HPC
Dissolving in water
HPC is introduced little into water being stirred vigorously, dissolving is difficult if all the amount is added at once.
20% to 30% of a prescrided amount of water is heated to a temperature above 60°C and HPC is slowly introduced under the remaining 80% to 70% water is added, by this process, quick dissolving is realized.
Dissolving in organic solvents
HPC is slowly introduced into the organic solvent under sufficient stirring, dissolving is difficult if all the amount is added too quickly.

Main uses of H-HPC
1. Use as binders: in the pharmaceutical field, as a binder for tablets, granules and fine grains or as the pase of ointments. It is used in an amount of 1% to 5% by weight of the medicine.
2. as film-coating agents; HPC has an excellent film-forming property. The film obtained in tough and flexible and has a noticeably good compatility with plasticizers, the film-forming property coating agents, maybe further impoved by using together with other moisture-proy.
HPC is used as dispersing agent for PVC, plasticizer absorbing property is improved, so that particles of uniform size are obtained. Compatibility with plasticizers, extrusion property is improved. Formation of so called ?fish-eyes? is inhibited. It is used as a viscosity-increasing agent for pyinting inks, cosmetics, paint removers, dry cells etc, and as binder for ceramics. HPC is used as gelation agnts for water and alcohols, especially for solidifying aocoholic solutions of perfumes to obtain solid perfumes having a delivery-retarding effect.
HPC is further used for fiber-treating agents, mortar and ancrete mixing agents and for paper coating agents.

Package, storage, transportation
It is packed in cardboard drum and lining with polyethylene film bag. Net weight 25kg per drum. Storgeand transportation: well-closed, direct sunshine and raining and moisture must be avoided.

Product name and chemical structure
Product name: Hydroxypropyl methyl Cellullose
Chemical structure:

Techinical specifications of Pharmaceutical Grade
(conforming to Q/09FRT001-2000 and standard of USP24)
Index Type
Items HPMC
65RT 60RT 75RT
Hydroxypropoxyl
content:wt% 4.0-7.5 7.0-12.0 4.0-12.0
Methoxyl content:wt% 27.0-30.0 28.0-30.0 19.0-24.0
Gelation temperature°C 62-68 58-64 70-90
Ash content:wt% Not more than 1.0
Moisture:wt% Not more than5.0
Viscosity:(2%by
weight at 20°C) 5-100000
PHvalue(1%by
weight at 25°C) 4-8
Chloriides:(NACL)
wt% Not more than 0.2
Arsenic:ppm Not more than 2
Heavy metals:ppm Not more than 20

Main Specification of Industral Grade
Index Type
Items
60RT 65RT 75RT
Methoxyl content:wt% 28-30% 27-30% 19-24%
Hydroxypropoxyl content:wt% 7-12% 4-7.5% 4-12%
Gelation temperature°C 58-64 62-68 70-90
Loss on drying: wt% ≤5%
Ash content:wt% ≤1%
PHvalue(1%by weight at 25°C) 4-8

Physical and chemical properties
Particle size:98.5% passes through 100 mesh sieve; 100% passes though 80 mesh sieve.
Charring temperatrue:280-300°C,
Bulkdensity of the powder:0.25-0.70g/cm3 (Usually around 0.5g/cm) 3
Ture specific gravity:1.26-1.31
Broming temperature:190-200°C,Surface tension:2% water solution surface tension 42-56dyn/cm.

Solubility: Dissolved in water and some organic solvent such as ethanol, propyl alcohol, ethylene chloride.The water solution is of surface grades. For example, among 60RT HPMC, 60 is gelation temperature. Namely, 2%water solution will form gelation at 60°C.That is the gelation property of HPMC. And the solubility degree some differences exist among different HPMC.HPMC has stability in water and thickening ability salt resistance, surface activity, thermal gelation, ash content, PH-stability water retentin shape retention shape retention shape retention, lubricity and film forming.

Main uses of HPMC
The product is a medicinal accessory material of many uses. It can be used for densifiers, dispersing agent, emulsifying agent, lubricator and film former etc. It?s used as an adhestrengthing the water-proofing for tablets and also be used as mixed dispersing agent, eye-drop agent, controlled reeased matrix tablets. It is combined with other synthetic polymers and gel-type drug products to prevent the separation If water and alcohot in aqueous transparent jelly drugs and to improve water retention. Other uses, it can be used in food or in cosmetics, and daily chemical industries too.
Methods for dissolving HPMC
1. Place the required amount of hot water heated to above 85°C in a vessel and HPMC gradually added while stirring gently, at first HPMC floats on the Surface of the water, but it is gradually dispersed to form a uniform slurry, cool the slurry while stirring it.
2. Place one-thirds of the required amount of water, heat to a bove 85°C in a vessel, disperse HPMC and prepare a hot slurry while stirring, cool the resultant mixture.

Package. Storage. Transportation
It is packed in fiber drum and lining with polyethylene film bag.Net weight 25kg per drum. Direct sunshine and raining, moisture must be avoided.

Chemical Name and Structure
Chemical name: hydroxyethyl cellulose
Structure:

Main Specifications of (Standard of USP24)
Item Index
Molar substitution value(M) 1.8-2.0
Moisture (%) ≤6
Non-soluble substance (%) ≤0.5
PH Value 6.0-8.5
Transmittance (2% by weight) ≥80
Ash (%) ≤6
Viscosity (mpa.s), 20% aqueous solution at 20°C 50-60000

Main Specifications of Industral Grade
Item Index
Molar substitution value(M) 1.8-2.0
Moisture (%) ≤6
Non-soluble substance (%) ≤0.5
PH Value 6.0-8.5
Ash (%) ≤5
Viscosity (mpa.s), 20% aqueous solution at 20°C 5-60000

Notice: The type of HEC is indicated by RT-6000, means viscosity. Surface-treated HEC is indicated by RT-6000S.

Properties
The products is a white or light yellow mobile powder with odourless and tastless, 99% passes through 40 mesh seieve.
Softening temperature:130~140°C.The burn velocity is slow.
Equilibribrum moistrue content (at 23°C)6% at 50% rh, and 29% at 84% rh
It dissolves in both cold and hot water, but doesn?t dissolve in many organic solvents in ordinary condition. The viscosity changes very small when PH valueis around 2~12, but it reduces when PH value exceeds this range. The surface-treated HEC can dissolve only when PH value is modified to basicity.

Usage
1. aqueous emulsion coating
HEC is used in the poly of viny acetate emulsion, in order to improve the polysystem?s stability in broad PH value range. In making product, it makes dditives smoothly distribute stabilize and thicken. It is also used as distributing agent for styrene, acrylic ester and acrylonitrile suspended polymer.
2. Petrolium well drilling
In many kinds of mud needed in petroleum well drilling, as a thickening agent, HEC makes mud have excellent flowability and stability. In well drilling, it can raise the carrying ability of mud, and inhibite a lot of water to inter oil lauer, so HEC stabilize the productive capacity of petroleum.
3. building conatruction and materials
HEC is an effective thickening agent and binder because of its good waterconserving, put it into mud in order to improve the mud?s fiowability, to put off water evaporating time, raise the initial intensity of concrete and avoid crackle.
4. Tooth paste
HEC can keep the stability of tooth paste because of its high anti-salt and anti-acid capability. In addition, it makes tooth paste hardly dry.

Preparation of HEC solution
1. Add the necessary clean water to vessel.
2. Put HEC to the water while stirring slowly, until all material wet.
3. Add other compositions after HEC totally dissloves.
4. Surface-treated HES should be distributed in water, and modified PH value to 8~10 by base or NH3H20 after all materials completely wet.

Package
It is packed in plastic-coating poly propyl ethylene bag. Net weight 15kg per bag. Moisture must be avoided.


Product name and Chemical structure
Product name: Methyl Cellulose (MC)
Chemical structure:

Main specifications of Pharmaceutical Grade: (Conforming to standard of USP 24/NF19)
Item Index
Methoxyl content:wt% 28.0-32.0
Loss on drying: wt% ≤5.0
Viscosity: map,s 5-100000
Ash content:wt% ≤1.0

Main specifications of Industral Grade
Item Index
Methoxyl content:wt% 28.0-32.0
Loss on drying: wt% ≤5.0
Viscosity: map,s 5-100000
Ash content:wt% ≤1.0
Gelation temperature:°C 52-67

Notice: 55RT6000: ?55? means the gelation temperature of MC, ?6000? is the viscosity of the MC, ?RT? is the first chinese phonetic alprabets of the ?RUITAI?

Proerities
Appearance: white or nealywhite powder. Odourless and tasteless. MC is a nonionic wate-soluble cellulose ether. It can be dissolved in water below 60°C and olcohol 70% or acetone easily.
Ture specific gravity:1.26~1.31,
Bulk density:0.25-0.7g/cm3;
Carbonization temperature: 225-230°C.

Main uses
MC can be used as adhesire, densifiec, dispering agent. Emulsifying agent and can be used for film former and adhesire in coating material industry and. Used as adhesire and moisture retentive agent in construction industry, It has also wide application in the field of oil drilling daily chemical industry and others. Therefore, it is a nonionic cellulose ether in brilliant prospects.

Process for dissolving MC
1. Place the required amount of hot water heated to above 80°C. In a vessel. Add Mc gradually while stirring gently. At first MC floats on the surface of the water. But it is gradually dispersed to form a uniform slurry, cool the slurry while stirring it.
2. Place one ?thirds of the required amount of water, heated to above dispersed to form a uniform slurry, cool the required amount of water heated to above 80°C. In a vessel, Disperse MC and prepare a hot water slurry in the same way as described in method (1), add the remaining amount of cold water to the hot slurry while stirring, cool the resultant mixture.

Package, storage, transportation
It is packed in knitting bag covered by plastic. Net weight 15kg or 20kg per piece prevent from rainning.
And fire, wet must be avoided.