Sodium Bromide|Calcium Bromide|Ammonium Bromide|Lithium Bromide-Weifang Taihexing Chemical Industry Co.,Ltd.

Molecular formula: NH4Br
CAS No.: 12124-97-9

Items	Photo First Grade	Photo Second Grade	Medical Grade
Main content	99.5% min	99.5% min	99.0% min
Loss on drying	0.5% max	0.5% max	0.5% max
Water Insoluable	0.005% max	0.01% max	—
Chloride	0.2% max	0.2% max	0.5% max
Iodide	0.001%max	—	—
Sulphate	0.005%max	0.005% max	0.01% max
PH Value(5%)	4.5—6.0	4.5—6.0	4.5—6.0
As	—	—	≤0.0004％
Pb	0.2ppm max	5ppm max	5ppm max
Fe	0.5ppm max	1ppm max	—
Cu	0.5ppm max	1.0ppm max	—
Bi	0.2ppm max	0.5ppm max	—
Peroxide solution penetrability(250g/l)	93～100 (410nm)	85～100(410nm)	—
Transparency test	Qualified	Qualified	—
Peroxide solution chromaticity(250g/l)	(15.0 Black once)max	—	—
Packing	PP bag with PE inner bag/fibre drum,25kgs per bag/drum