Hydroxy Propyl Guar
Hydroxy propyl methyl cellulose (HPMC) industrial grade
Appearance: White powder.
Particle size: 98.0%min through 100mesh.
Charring temperature: 280-300 Deg.C.
Bulk density: 0.25-0.70g/cm3(Usually around 0.5g/cm3)
Real specific gravity: 1.26-1.31
Browning temperature: 190-200 Deg.C.
Surface tension (2% water solution):42-56 dyn/cm.
| Index |
Type ME MF MK |
|
Methoxyl content(WT%) |
28.0-30.0 27.0-30.0 19.0-24.0 |
| Hydroxypropoxyl content(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 |
| H value(1% solution ,25ºC) | 4.0-8.0 |
| Ash content(WT%) | ¡Ü 0.5 (1.0-Industry grade) |
| Loss on drying (WT%) | ¡Ü 5.0 |
| Burnt residues(WT%)pharm grade | ¡Ü 1.5 |
| Heavy metal(PPM)-pharm grade | ¡Ü 20 |
| Arsenic(PPM)-pharm grade | ¡Ü 2 |
| Viscosity,(mpas) | 5-150000 |