|Place of Origin:||Hunan|
|Model Number:||sodium pyrosulfite-c5|
|Minimum Order Quantity:||1 metric ton|
|Price:||usd 300 per metric ton|
|Packaging Details:||25 kgs bag,1000 kgs big bag|
|Delivery Time:||5-8 days|
|Payment Terms:||T/T , L/C|
|Supply Ability:||3000 tons per month|
|Name:||Purification In Chloroform Sodium Pyrosulfite||Other Name:||Purification In Chloroform Sodium Metabisulfite|
|Capacity:||50000 Tons Per Year||Grade:||Industrial Grade, High Purity|
|Usage:||Purification In Chloroform||Packing:||1000 Kgs Bag|
smbs sodium metabisulfite,
sodium meta bi sulphate
Quick Detail of sodium metabisulfite:
|Product Name||Sodium Metabisulfite|
|Product description||white powder|
|Payment Terms||TT, L/C|
Sanitization and cleaning agent
It is commonly used in homebrewing and winemaking to sanitize equipment. It is used as a cleaning agent for potable water reverse osmosis membranes indesalination systems. It is also used to remove chloramine from drinking water after treatment.
When mixed with water, sodium metabisulfite releases sulfur dioxide (SO2), a pungent, unpleasant smelling gas that can also cause breathing difficulties in some people. For this reason, sodium metabisulfite has fallen from common use in recent times, with agents such as hydrogen peroxide becoming more popular for effective and odorless sterilization of equipment. Released sulfur dioxide however makes the water a strong reducing agent.
Sodium metabisulfite releases sulfur dioxide in contact with strong acids:
Na2S2O5 + 2 HCl → 2 NaCl + H2O + 2 SO2
On heating to high temperature, it releases sulfur dioxide, leaving sodium sulfite behind:
Na2S2O5 → Na2SO3 + SO2
The anion metabisulfite is a hybrid of dithionite (S2O42−) and dithionate (S2O62−). The anion consists of an SO2 group linked to an SO3 group, with the negative charge more localized on the SO3 end. The S–S bond length is 2.22 Å, and the "thionate" and "thionite" S–O distances are 1.46 and 1.50 Å respectively.
SODIUM METABISULFITE is a white crystalline or powder solid with a slight sulfur odor. Toxic by inhalation . Strongly irritates skin and tissue. Noncombustible, but may decompose to emit toxic oxide fumes of sulfur and sodium when heated to high temperature. A corrosive acid when mixed with water. Used as a food preservative and as a laboratory reagent.
Added to local anaesthetic (lidocaine etc.) solutions to prevent oxidation of vasoconstrictor adrenaline and thus improve the shelf life of the solution
It is used in photography.
Concentrated sodium metabisulfite can be used to remove tree stumps. Some brands contain 98% sodium metabisulfite, and cause degradation of lignin in the stumps, facilitating removal.
It is also used as an excipient in some tablets, such as paracetamol. Approximately 0.5 mg is used in epinephrine autoinjectors such as the EpiPen.
A very important health related aspect of this substance is that it can be added to a blood smear in a test for sickle cell anaemia (and other similar forms of haemoglobin mutation). The substances causes defunct cells to sickle (through a complex polymerisation) hence confirming disease.
It is used as the source of SO2 in wine. An important anti-oxidant and bactericide
It is also used to precipitate gold from auric acid (gold dissolved in aqua regia).
It is used in waste treatment to chemically reduce hexavalent chromium to trivalent chromium which can then be precipitated and removed from an aqueous waste stream.
It is used as a bleaching agent in the production of Coconut cream
It is used as a reducing agent to break sulfide bonds in shrunken items of clothing made of natural fibers, thus allowing the garment to go back to its original shape after washing
It is used as an SO2 source (mixed with air or oxygen) for the destruction of cyanide in commercial gold cyanidation processes.
It is used in the oil and gas industry as a corrosion inhibitor/oxygen scavenger.
It is used in the water treatment industry to quench chlorine residual
Sodium Metabisulphite SM is used as a preservative in the starch and food industry to control melanosis (black spot) in shrimp; for fermentation in the wine industry; as an antichlor in the chemical industry and as a redox catalyst in the acrylic fibre industry.
The product is also used as a reducing agent in the purification of aldehydes and ketones; in the manufacture of sulphonated oil and resin; for detoxification of cyanide in gold ore processing plants and in the manufacture of photographic chemicals.
Contact Person: Ms.xie