Sodium Metabisulfite Food Additives with High Quality

Product Description

Product Name: Sodium metabisulfite
CAS No.: 7681-57-4
H. S Code: 2831102000
Molecular weight: 190.10
Appearance: White crystalline powder, free from extraneous matter with a faint odour of sulphur dioxide gas...
Package: 25kg / 1000kg net in the plastic woven bag with PE liner.
Application: Used as a food preservative. It is a slight hazy solution free from inappropriate impurities. These sulphites are available in white and faint cream crystalline free flowing powder and are widely used in photographic chemical and preservative chemical.Used in medicine when producing chloroform,solasulfone and methnylal;used as coagulant in rubber industry; used as dechlorided agent or assistants in printing and dyeing industry; used to improve leather properties in leather industry; used as developing agent in photosensitivity industry; used when producing hydroxyl geranial, hydrochloric hydroxylamine in chemical industry; used as bleaching agent, antiseptics, antioxidant, ect.in food industry.
Specification:

Items	Technical grade	Food grade
Assay	96% min	97% min
Assay as SO2	65% min	65% min
Water insoluble	0.05% max	0.05% max
Ferric (Fe)	0.003% max	0.003% max
pH value	4.0-4.6	4.0-4.6
Lead (Pb)	**	0.002% max
Arsenic (As)	**	0.0002% max

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