HPMC used as thickener, adhesive, water preserving agent, film forming agent in construction, building materials ......
Hydroxy propyl Methyl Cellulose(HMPC) 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.
Packaging Detail: 1.Double-layer Bag, The product is packed in polyethylene film bag and then in PE bag. Net weight is 25kg per bag.
Specifications:
1.Appearance: HPMC is white or similar to white fiber or granular powder; odorless.
2.Properties: almost insoluble in ethanol, ether and acetone; quickly dispersed in 80-90 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 212. 3.Apparent density: 0.30--0.70g/cm3, density is 1.3g/cm3.
Technical Requirements:
.
Application | Pharmaceutical grade | Industrial grade | ||||
Names of index | Parameter | Parameter | ||||
Products model | 60LDS | 65LDS | 75LDS | 60LDS | 65LDS | 75LDS |
Methoxyl content (wt%) | 28.0-30.0 | 27.0-30.0 | 19.0-24.0 | 28.0-30.0 | 27.0-30.0 | 19.0-24.0 |
Hydroxyl and oxyl content (wt%) | 7.0-12.0 | 4.0-7.5 | 4.0-12.0 | 7.0-12.0 | 4.0-7.5 | 4.0-12.0 |
Gel temperature(°C) | 58.0-64.0 | 62.0-68.0 | 70.0-90.0 | 58.0-64.0 | 62.0-68.0 | 70.0-90.0 |
Loss on drying (WT) | ≤5.0% | ≤5.0% | ||||
pH value (1% solution at 25°C) | 4.0-8.0 | 4.0-8.0 | ||||
Ash | ≤1% | ≤4% | ||||
Chloride(NaCl) | ≤0.2% | / | ||||
Arsenic salt: ppm | ≤2 | / | ||||
Heavy metal: ppm | ≤20 | / | ||||
Viscosity (2% aqueous solution, 20°C, MPa.s) | 5-150000 | 5-150000 | ||||
Viscosity specifications :
Type | Specification | Range mpa.s |
Ultra-low viscosity | 5 | 3-7 |
10 | 8-12 | |
15 | 13-18 | |
Low viscosity | 25 | 20-30 |
50 | 40-60 | |
100 | 80-120 | |
High viscosity | 4000 | 3500-5600 |
12000 | 10000-14000 | |
Ultra-high viscosity | 20000 | 17000-22000 |
25000 | 22000-28000 | |
30000 | 28000-32000 | |
40000 | 37000-42000 | |
50000 | 2900-3900* | |
100000 | 4100-5600* |
Construction grade Hydroxy propyl Methyl Cellulose HPMC
