AMBER WHITE AMK
OPTICAL WHITENER FOR PAPER INDUSTRY
TECHNICAL SPECIFICATION
Chemical Description
Disulphonic Derivative of 4, 4’-diaminostilbene-2,2’-disulphonic acid
Ionicity
Anionic
Shade
Natural bluish to very slightly greenish white
Substantivity
Excellent
Form supplied
Yellow Powder
Acid resistance
Poor
Solubility
25o C20 g/l
98o C 250 g/l
Storage stability
60 months
Recommended for Use
Use in the pulp for un sized and weakly acid or natural sized papers. Use in coatings containing carriers.
Application
Pulp
Due to their high affinity, the AMBERWHITE AMK brands are suitable for brightening unsized papers even with soft water and low pulp concentration. The same applies to natural or alkaline sized papers. It is advisable to add the whitening agent before the aluminum sulphate or other Cationic additives. AMBERWHITE AMK should first be dissolved in hot water.