Speciality Grades

High-Purity PVOH

GOHSENOL EG SERIES

GOHSENOL EG is a series of high-quality polyvinyl alcohols with the Extra High purity property. Make use of this character, GOHSENOL EG series are widely used for the application of pharmaceuticals, cosmetics, electronics materials and ceramics.

GOHSENOL EG-Grade P series is a newly developed grade. This grade is produced under the severe quality control with the ISO certification.

EG Grade and specifications
Product Grade	Saponification Degree (mol % )	Viscosity^a) (mPa･s)	Viscosity ( % )	JPE.	USP.EP
EG-05	86.5~89.0	4.8~5.8	0.15 or less	○
EG-40	86.5~89.0	40.0~46.0	0.15 or less	○

(a) 4% aqueous solution

Applications of EG Series
Cosmetics	Base resin for face-pack; lotion, cream
Pharmaceuticals	binder, suspending agent, cataplasm
Electrical/electronic	Fluorescent material binder, illuminant binder
Ceramics	Fine ceramic binder
Others	Enzyme fixing carrier, biochemical raw material, gel raw material for regeneration medicine

Saponification Degree and Viscosity of GOHSENOL EG

Dissolution Pattern of GOHSENOL EG

Dissolving GOHSENOL EG: GOHSENOL EG is charged into room temperature water 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.

Comparison of Effluent Water Loads of Water Soluble Polymer
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