Item	Superior Class	Class A
Appearance	white powder, no impurity entered in
Purity %-	99.8	99.0
Water content % is more than or equal to	0.1	0.2
Grey content % is less than or equal to	0.03	0.05
PH value	7.5-9.5	-
water solution test for formaldehyde
Turbidity( kaoli) is less than or equal to Hues(platinum -cobalt) is less than or equal to	20   20	30   30

4. Application:designed to manufacturing melamine-formaldehyde resin, which features in nice water resistance, heat resistance, electric arc resistance, and luster, can be used as decorative plate, amino plastic, binder, paint, textile aids, high-efficient cement dewater agent, etc..
5. Packing:External: plastic, Internal: wovean, the net of each piece is 25kg,250kg,500kg,1000kg,or provide other packings according to specific demand of customers.
6. Storage:Stored at dry, cool and well-ventilated places, and may not transport in accompany with acid and oxidizer.