Properties
GOHSENOL™ EG series is Polyvinyl Alcohol obtained through purification process. Production facility, production management, and quality assurance all meet the criteria of self-imposed standards of GMP for pharmaceutical excipients.
Grades List
GOHSENOL™ EG granule type
| Grades | Degree of hydrolysis[mol%] | Viscosity *1, *2 (Unit of measurement)[mm2/s] |
|---|---|---|
| EG-03P | 86.5-89.0 | 3.0-3.8 (3.4) |
| EG-05P | 4.5-6.1 (5.3) | |
| EG-18P | 15.3-20.7 (18.0) | |
| EG-22P | 19.0-25.6 (22.3) | |
| EG-30P | 25.5-34.5 (30.0) | |
| EG-40P | 36.6-49.4 (43.0) | |
| EG-48P | 41.3-55.7 (48.5) |
*1: 4%solution, under 20 deg. C
*2: indicated as JPE value. Viscosity specifications fulfilling requirements of other pharmacopoeia are available upon request
*2: indicated as JPE value. Viscosity specifications fulfilling requirements of other pharmacopoeia are available upon request
GOHSENOL™ EG powder type
| Grades | Degree of hydrolysis[mol%] | Viscosity *1, *2 (Unit of measurement)[mm2/s] |
|---|---|---|
| EG-05PW | 86.5-89.0 | 4.5-6.1 (5.3) |
| EG-30PW | 25.5-34.5 (30.0) | |
| EG-40PW | 36.6-49.4 (43.0) |
*1: 4%solution, under 20 deg. C
*2: indicated as JPE value. Viscosity specifications fulfilling requirements of other pharmacopoeia are available upon request
*2: indicated as JPE value. Viscosity specifications fulfilling requirements of other pharmacopoeia are available upon request
Applications
Binder, Film coating agent, Thickener (for ophthalmic, nasal solutions), Gel patch, Emulsifier, OD film substrate.
Dissolution and Storage
Dissolving GOHSENOL™ EG
GOHSENOL™ EG is charged into room temperature water slowly in small amounts while stirring to disperse. The water is heated, and with constant stirring, kept at 80 to 90 degree C for 30 to 60 minutes.
Storing GOHSENOL™ EG
Avoid storage in tanks or pipes that readily rust.
| Polymer | COD(mg/l) | BOD5(mg/l) |
|---|---|---|
| GOHSENOL™ EG-40 | 89 | 180 |
| Corn Starch | 36 | 7400 |
|
Measuring conditions: Sample concentrations mean pure material concentrations.
COD was measured by potassium permanganate method (JIS K 0102), and BOD5 means the BOD value of over 5 days. Measurement: Registration No. of measurement certification enterprise, Osaka No. 10013, KK Osaka Environmental Technology Center |
||
