Brief introduction of Hydroxypropyl starch ether HPS CAS 9049-76-7
Chemical name: Hydroxypropyl starch ether
CAS No.：9049-76-7
Synonyms: HPS
Molecular Formula: C3H8O2·x
Molecuar Weight: -
EINECS: -
Properties of Hydroxypropyl starch ether HPS CAS 9049-76-7
Hydroxypropyl starch is a white or pale white powder with no special smell. Do not dissolve in cold water, can be gelatinized into a thick gel with a certain transparency in the heating conditions, good stability.
Hydroxypropyl starch ether HPS is nonionic and has high stability of substituting ether bond. In the process of hydrolysis,oxidation, dextrinizing and cross-linking reaction, ether bond cannot be broken and it can replace the group and does not fall off. It is a kind of chemical modified starch ether, which is mainly used as thickener and texturing agent for cement, food and cosmetics etc. HPS is a cost-saving material and is easy to obtain the required thickening effect.
Specification of food grade Hydroxypropyl starch ether HPS CAS 9049-76-7
Purity (CO2 Yielding,%) |
3.3 ~ 6.8 |
Appearance |
Off-white powder |
Nitrogen (%) |
≤3 |
Loss on Drying (%) |
≤15 |
Transmittance (%) |
≥ 80 |
Gel Strength (g/cm2) |
>900 |
Ashes (%) |
<12 |
Isopropyl Alcohol (mg/kg) |
≤750 |
pH |
6.0- 8.0 |
Lead (Pb) |
≤2 mg/ kg |
Mercury (Hg) |
≤1 mg/ kg |
Arsenic (As) |
≤3 mg/ kg |
Cadmium (Cd) |
≤1 mg/ kg |
Total Heavy Metals (as Pb) |
≤20 mg/ kg |
Total Plate Count (cfu/g) |
≤ 10,000 |
Moulds & Yeasts (cfu/g) |
≤ 400 |
Salmonella spp./10g |
Negative |
E. coli/ 5g |
Negative |
Particle Size |
Min 95% Pass 80 mesh |
Application of Hydroxypropyl starch ether HPS CAS 9049-76-7
1. Food industry: Hydroxypropyl starch can be used as thickener, suspending agent, and adhesive.
2. Paper industry: Hydroxypropyl starch can be used as paper sizing and surface sizing to ensure smooth film, reduce the ink consumption, and have a certain ability to nap.
3. Textile industry: Hydroxypropyl starch can be used as warp size to increase the wear resistance and weaving efficiency. And high substitution degree of hydroxypropyl starch can be used as thickener.
4. Pharmaceutical industry: Hydroxypropyl starch can be used as disintegrating agents of tablet and plasma enhancer.
5. Oil drilling industry: It helps to stabilize oil drilling borehole and improve drilling conditions such as anti-sloughing, flocculation drilling cuttings
6. Daily chemical industry: Hydroxypropyl starch can be used as binder, suspending agent and thickener in daily chemical industry and cosmetic or coating
7. Building materials: Hydroxypropyl starch can be used as adhesive, coating or organic liquid.
- All kinds of (cement, gypsum, lime and calcium base ) wall putty additives.
- All kinds of additives of decorative mortar and plastering mortar.
- It can be as the molding adhesive of all kinds of ceramic and porcelain products.
- As good thickener and stabilizer, it plays a role in suspension And emulsion in the aqueous solution.
Packing, Storage of Hydroxypropyl starch ether HPS CAS 9049-76-7
Package: 25kg/paper bag, 20mt/20”FCL.
Storage conditions: store in a cool and dry place.
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