Sodium Metabisulphite
Explain：
CAS NO.:
7681-57-4
Sodium metabisulfite or sodium pyrosulfite is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent.
SODIUM METABISULPHITE (FOOD GRADE )
Date:SEP.10TH,2022
Grade | Food grade | ||||
Product | Sodium Metabisulfite | Batch No. | SC20220910 | ||
Invoice No. | SC20220824SM | Production date | 20220910 | ||
Quantity | 54MT | Expiry date | 20240909 | ||
Items tested | Standard | Analytical result | |||
PURITY(AS Na2S2O5 ): | 98% min. | 98.10% | |||
SULFUR DIOXIDE(SO2): | 65% min. | 65.23% | |||
Water insoluble | 0.05% max. | 0.018% | |||
Iron (Fe) | 0.0010% max. | 0.0008% | |||
Heavy metal (as Pb) | 0.0002% max. | 0.0001% | |||
Arsenic (As) | 0.0002% max. | 0.0001% | |||
PH Value | 4.0-4.8 | 4.4 | |||
Na2SO3 | 2.0% max. | 1.8% | |||
Na2SO4 | 1.0% max. | 0.9% | |||
Selenium | 0.0005% max. | 0.0004% | |||
Lead | 0.0001% max. | Not detected | |||
Thiosulfate | 0.1% max. | 0.08% | |||
Mercury(Hg) | 0.0001% max. | 0.00002 | |||
Chloride | 0.005% max. | 0.003% | |||
