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7681-57-4
H2O5S2.2Na
192.12
231-673-0
DESCRIPTION
Item | Standard |
Content | 99.90% Min |
Acid value (mg KOH/g) | 0.03 Max |
Crystalling point | 18.20*C Min |
Transmittance (400nm) | 96.0% Min |
Refractive index (20 *C) | 1.4775-1.4790 |
Moisture | 0.10% Max |
Used as a preservative, bleach, and loosening agent in food processing. Sodium metabisulfite is used in industries such as printing and dyeing, organic synthesis, printing, leather making, pharmaceuticals, etc;
Sodium metabisulfite is used in the chemical and pharmaceutical industries for the production of insurance powder, sulfamethoxazole, acetaminophen, caprolactam, as well as for the purification of formaldehyde from chloroform, phenylpropylsulfone, and benzene. An ingredient used as a fixing agent in the photography industry. The spice industry is used to produce vanillin. Used as a preservative in the brewing industry, a rubber coagulant, and a dechlorination agent after bleaching cotton fabric. Organic intermediates, dyes, and leather are used as reducing agents in the electroplating industry, wastewater treatment in oil fields, and mineral processing agents in mines.
Q1: May I get sample?
A1: Free sample is available, you only need to pay freight.
A2: Usually it will cost about 5 days after delivery.
A3: You can contact us about your order details by E-mail, WhatsApp, Skype, etc.
A4: We will test the goods and issue COA before delivery
