1. Quality Stanrdard: Q/SHD004-2007

Item	Type
	60HD	65HD	75HD
Methoxy content(WT%)	28.0－30.0	27.0－30.0	19.0－24.0
Hydroxypropoxy conten（WT%)	7.0－12.0	4.0－7.5	4.0－12.0
Gelation temperature (oC)	58.0－64.0	62.0－68.0	70.0－90.0
Drying loss（WT%)	≤5.0
Residue on ignition(WT%)	≤1.0
pH-value(1% solution, 25oC)	4.0－8.0

2. Viscosity: (2% solution, 20^oC)

NDJ-1		B type Viscosimeter
Rating Viscosity(mPa.s)	Range	Rating Viscosity(mPa.s)	Range
400	350-500	400	350-500
1500	1300-1800	1500	1300-1800
4000	3600-4800	3500	3000-4500
6000	5400-7000	5000	4000-6000
10000	9000-12000	9000	8000-10000
20000	18000-24000	18000	16000-20000
40000	36000-48000	30000	24000-36000
60000	54000-70000	35000	28000-42000
75000	68000-85000	40000	32000-48000
100000	90000-120000	50000	40000-60000
150000	130000-160000	60000	50000-70000
200000	160000以上	75000	≥65000

1.  Appearance: white or similar to white granular powder; odorless

2.  Properties: almost insoluble in ethanol, ether and acetone; quickly dispersed in 80-90^oC water; aqueous solution is very stable in room temperature; has good wetting/dispersing/adheisve/thickening/emlusifying/water preserving/film-forming properties; can prevent the infilration of grease; film formed has excellent flexibility and trransparency; has good compatibility with other emulsifier; easy salting-out. its solution is stable with PH 2－12.
3. Apparent density: 0.30－0.70g/cm³, densisty: 1.3g/cm³.

3. Dissolving process: 
HPMC will agglomerate when directly added to water and then dissolve. In this way it dissolves very slow and hard. Suggested methods as followers:
1. In hot water.
HPMC does not dissolve in hot water. The primary HPMC can be uniformly disperse in hot water. Then cool down in two ways:
a) Add hot water in container and heated to over 70℃. Add HPMC gradually while slowly, stir. At the beginning, HPMC float on the top of water, then turns into slurry state stir and cool down.
b) Add water in container to 1/3 or 2/3 of its content. Heated to over 70℃ add HPMC by sequence of a). Make it disperse to form slurry state. Add cool water or ice to the resideual content, stir and cool down the mixture.
2. Powder combination.
Mix HPMC with identical volume of other powder, disperses them sufficiently then add water to the

4. Application::
It is widel used as thickener, adhesive, water preserving agent, film-forming agent in construction, building materials, dispersion coating, wallpaper paste, polymerization aids, leathers, printing ink and paper making etc.l also used in petroleum drilling and daily-use chemicals.

5. Packing, transport and storage:
In 15kgs or 20kgs cardboard drum lined with PE or in woven bag with PP lining; stored indoors in dry and draughty palce; avoid rain and sunlight during transporting.