We are offering ammonium dichromate ar
(nh4)2cr2o7 m.w. 252.06
min. Assay(after drying) 99.5%
maximum limits of impurities :
insoluble matter 0.003%
loss on drying at 105oc 3%
chloride(cl) 0.001%
sulphate(so4) 0.01%
aluminium(al) 0.003%
calcium(ca) 0.0025%
sodium(na) 0.02%
cas no : 7789-09-5
un no. 5.11439
tariff : 2841 50 90
r : 1-8-363738-43
s : 28.1-35
f : 15