Sodium Metabishulphate as Antistatic Agent

Sodium metabisulphite is a kind of white or slightly yellow crystalline powder.

It is soluble in water, acidic aqueous solution. Besides, it also is soluble in glycerol, slightly soluble in ethanol. And it is easily decompose when sodium metabisulfite 97% becomes wet antistatic agent. When exposed in air it will easily oxidize into sulfate. Emit sulfur dioxide and generate the corresponding salts when Sodium pyrosulfite contacts with acid. Sodium metabisulfite 96.5% powder will decompose when heated to 150 ℃.


Sodium metabisulphite powder is a very important product which possesses various applications. For food grade, it can be used as bleach agent for candies, cake, bamboo shoots, etc, loose agent for bread, cracker, antiseptic and germicide for fruit juice, tinned food, brews, the cereals food is defended storage etc, Inhibitor and freshen agent for day lily, seafood, fruit and vegetable. And industrial grade sodium metabisulphite can be used as mordant of printing and dyeing; dechlorinate of textile after bleaching; sulphonated antistatic agent and reducer of chemical industry and pharmacy; bleach of paper pulp, bamboo and timber bleach of Stap; treatment agent of waste water; rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde.

There are two primary methods used to get rid of static charge buildup in drying clothing, which happily go hand in hand with one another using the same substance. The first method is to lubricate the clothing. The second method is to use a positively charged material to more or less balance out the charges on the tumbling clothing. Because fabric softeners are typically naturally positively charged and provide a lubricating effect after they coat the clothing, they make a fantastic anti-static agent, along with performing their softening function.

Static charge is built up in the clothing in the dryer via the triboelectric effect. The triboelectric effect is where certain materials become electrically charged when they come in contact with one another and then are separated (rubbing isn't required, but will enhance the effect significantly).
When the two materials come in contact, an antistatic agent chemical bond is formed and if there is an electrical potential difference, electrons will move from one material to the other until the potential is equal. However, when the bond is broken, certain atoms will keep more electrons than they should and other types of atoms have a tendency to give away more atoms than they should upon being separated. So, when these two get together and then are separated, an imbalance is formed, which ultimately results in static charge buildup.