Hydroxypropyl Starch Ether CAS#9049-76-7
Hydroxypropyl starch ether (HPS) acts as a functional additive to upgrade the performance of cement and gypsum dry mortars, optimizing workability, anti-slip property and thickening efficiency. When blended with cellulose ether, HPS further adjusts mortar workability and raises bonding strength, delivering prominent synergistic benefits.
Manufactured from natural corn starch via modification, etherification, spraying and drying processes, HPS is a fine white powder with favorable water solubility. It possesses distinctive features that differentiate it from regular starch and other modified starch variants.
Hydroxypropyl starch Chemical Properties
| English Name | Hydroxypropyl starch |
| English Synonyms | Starchhydroxypropylated;Starch 2-hydroxypropyl ether;Hydroxypropyl starch ether;5-[6-[[3,4-dihydroxy-6(hydroxymethyl)-5-methoxyoxan-2-yl]oxymethyl]-5-[3-(2,3-dihydroxy-2-methylpropoxy)-4-hydroxy-6-(hyd roxymethyl)-5-methoxyoxan-2-ylloxy-3,4-dihydroxyoxan-2-yl]oxy-6-(hydroxymethyl)-2-methyloxane-3,4-d iol;HYDROXYPROPYL STARCH;2-hydroxypropyl starch;Hydroxypropylstrke;Starch, hydroxypropyl ether |
| CAS Number | 9049-76-7 |
| Molecular Formula | C24H42021 |
| Molecular Weight | 666.57768 |
| solubility | Practically insoluble in cold water and in ethanol (96 per cent). |
| InChIKey | BYSGBSNPRWKUQH-XPGIZXPCNA-N |
| EPA Substance Registry System | Starch, 2-hydroxypropyl ether (9049-76-7) |
| Cosmetic Ingredient Efficacy | Viscosity control |
| Cosmetic Ingredient Evaluation | Hydroxypropyl starch (9049-76-7) |
Product Usage
Hydroxypropyl starch ether (HPS) is manufactured from natural corn starch by means of modification, etherification, spraying and drying. It is a fine white powder with superior water solubility, and its functional properties differ from those of common starch and other modified starch grades.
