Hydroxypropyl Methyl Cellulose with High Quality and Good Price

• Customization: Available
• CAS No.: 9004-65-3
• Use: Building
• Colour: White
• Appearance: Powder
• Color: White
• Method: Spray
• Level: Primer
• Certification: ISO9001
• Main Raw Material: Cotton Cellulose
• Transport Package: 25kg/Bag, 50kg/Bag
• Trademark: SALUS
• Origin: China
• HS Code: 391290000
• Production Capacity: 100000/Year

Product Description

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1. Appearance: white or white powder.

2.Part of specification:
 

Item	Specification	Result
Physical Exterior	White Powder	White Powder
Viscosity(2%,25°C),mpa.s	140000-160000	150000
Methoxyl(-OCH3),w/%	19.0-24.0	21.0
Hydroxypropyl (-OCH2CHOOHCH3),w/%	7.0-12.0	10.5
Gelling temperature,°C	70-90	79
Moisture content,w/%	max 5	2.65
Ash,%	max 1	Complied
Lead(Pb),ppm	max 2	Complied
Arsenic(As),ppm	max 2	Complied
Heavy metal,ppm	max 20	Complied
Conclusion	Through analysis, the quality of this batch NO. is approved.

HS CODE:391290000

Iii. Physical and chemical properties:

1. Appearance: white or white-like powder.

2. Granularity; The pass rate of 100 mesh is more than 98.5%. The pass rate of 80 mesh is more than 100%.

3. Carbonization temperature: 280-300ºC

4. Apparent density: 0.25-0.70/cm3(usually around 0.5g/cm3), specific gravity: 1.26-1.31

5. Discoloration temperature: 190-200ºC

6. Surface tension: 2% water solution is 42-56dyn/cm.

7. Soluble in water and some solvents, such as appropriate proportion of ethanol/water, propanol/water, trichloroethane, etc. The aqueous solution has surface activity. High transparency, stable performance, different specifications of the product gel temperature is different, solubility changes with the viscosity, the lower the viscosity, the greater the solubility, different specifications of HPMC performance is different, HPMC in the water solubility is not affected by PH value.

8. With the decrease of methoxy content, the increase of gel point and the decrease of water solubility, the surface activity of HPMC also decreased.

9, HPMC also has the ability to thicken, salt resistance low ash powder, PH stability, water retention, dimensional stability, excellent film-forming, as well as a wide range of enzyme resistance, dispersity and adhesion characteristics.

Iv. Main USES:

This product is industrial grade HPMC, the main use for PVC production as dispersant, suspension polymerization to produce PVC as the main assistant. In addition, it is used as thickener, stabilizer, emulsifier, excipient, water retaining agent and film forming agent in the production of other petrochemicals, coatings, building materials, paint removing agents, agricultural chemicals, inks, textile printing and dyeing, ceramics, paper making, cosmetics and other products. In the application of synthetic resin, the obtained product has the characteristics of regular grain, loose, suitable apparent specific gravity and excellent processing performance, thus basically replacing gelatin and polyvinyl alcohol as dispersants. In addition, in the construction process of the building industry, mainly used for laying walls, stucco, joint and other mechanized construction; Especially in decorative construction, used for paste ceramic tile, marble, plastic decoration, paste high strength, but also can reduce the amount of cement. Used as thickener in coating industry, can make the layer bright and delicate, do not remove powder, improve leveling performance, etc.

V. Dissolution method:

1. Take the required amount of hot water, heat it to 85ºC or above in a container, and gradually add this product after slowly stirring. Cellulose initially floats on the water surface, but is gradually dispersed, forming a uniform slurry, and then cool the solution under stirring.

2, or will be 1/3 or 2/3 of the hot water heating to 85-- above, add cellulose, get hot water slurry, then add the remaining amount of cold water, keep stirring, cooling the mixture is formed.

Vi. Matters needing attention in packing, storage and Transportation:

Packed in cardboard drum lined with polyethylene film, net weight of each barrel: 25kg. Prevent from sun, rain and moisture during storage and transportation.