偏二亚硫酸钠

Sodium metabisulfite is used as an active ingredient in campden tablets, as a cleaning agent for potable water reverse osmosis membranes, as a preservative and an antioxidant in food. It also acts as a corrosion inhibitor in oil and gas industry, as a bleaching agent in the production of coconut cream, as the source of sulfur dioxide and in the destruction of cyanide in commercial gold cyanidation processes. It is utilized in the precipitation of gold from auric acid as well as in the waste water treatment to remove hexavaent chromium as trivalent chromium by precipitation after reduction. Further, it is used in photography. In addition, it plays as an oxygen scavenger to eliminate the dissolved oxygen in wastewater and in pipes.

Moisture and air sensitive. Incompatible with strong oxidizing agents and strong acids.

MFCD00167602

231-673-0

Na₂O₅S₂

190.10

>300°

1.480

Moisture Sensitive. Air Sensitive. Store under Nitrogen. Ambient temperatures.

Powder

Soluble in water, ethanol and glycerol.

14,8638

22-31-41
Harmful if swallowed.Contact with acids liberates toxic gas.Risk of serious damage to eyes.

26-39-46
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection.If swallowed, seek medical advice immediately and show this container or label.

UX8225000

 

是

  

H302-H318
Harmful if swallowed.Causes serious eye damage.

P280i-P264-P305+P351+P338-P310a-P301+P312a-P501a
Wear eye/face protection.Wash thoroughly after handling.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Dispose of contents/container in accordance with local/regional/national/international regulations.