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So2 65% Purity Sodium Metabisulfite Food Additive CAS 7681 57 4 Shelf Life 6-12 Months

So2 65% Purity Sodium Metabisulfite Food Additive CAS 7681 57 4 Shelf Life 6-12 Months

  • So2 65% Purity Sodium Metabisulfite Food Additive CAS 7681 57 4 Shelf Life 6-12 Months
  • So2 65% Purity Sodium Metabisulfite Food Additive CAS 7681 57 4 Shelf Life 6-12 Months
So2 65% Purity Sodium Metabisulfite Food Additive CAS 7681 57 4 Shelf Life 6-12 Months
Product Details:
Place of Origin: Hunan
Brand Name: Kemsky
Certification: ISO 9001/SGS
Model Number: white crystalline SMBS
Payment & Shipping Terms:
Minimum Order Quantity: 1 metric ton
Price: usd 280-320 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
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Detailed Product Description
Name: Sodium Metabisulphite White Powder Other Name: Sodium Pyrosultite White Powder
Situation: White Powder Crystalline Shelf Life: 6 Months-12 Months
Usage: Antistaling Agent Preservative, Food Additive Classification:: Sulphate
High Light:

sodium metabisulfite in water treatment

,

sodium metabisulphite food grade

SMBS/sodium pyrosulphite/sodium metabisulfite

 

English name: High Quality Sodium Metabisulfite Industrial Use

molecule formula:Na2S2O5
molecule weight:190.10
Physical properties:
It is white or tiny yellow crystal powder. Its relative density is 1.4. The solubility is 54g/100mlwater at 20°C or 81.7g/100mlwater at 100°C,and the solution show acidity. It can solute in glycerine and little in alcohol. When exposed in air, it will oxidized into sodium sulfate, and can react with strong acid into sulfur dioxide gas and the salts. It is deliquescent, and will decompose when heated to 150°C.

state santandard:GB1893-86
Index

Sodium pyrosulfite ≥(SO2)65%
iron ≤0.005%
value of PH 4—4.6
heavy metal (Pb)% ≤0.002%
(As)% ≤0.0001%
appearance white or tiny yellow crystal powder

 

Property: white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is 1.4, easy to dissolve in water and glycerin, water solution. It has acidity,and its solubility will become large while raising the temperature and is less to dissolve in ethanol.

Packing : External packing is PP woven bag, Internal packing is PE bag,25 kgs, 50 kgs, 1000 kgs, and 1250 kgs bag packing.

Storage & defence: Stored in cool and dry place, avoid moisture and heat. No breakage, No mixed with oxidant and toxic matter. The storage period is 6 month since the production date. It should be transported by clean car, with covering matter, avoid rain.

Application:

(1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).

(2) Industry Grade: Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated 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
The hide profession employ to do to molt dose and pliable dose and wearproof dose; sewage treatment, and so on .

(3) Pharmaceutical Grade: In chemical synthesis in the production of acrylic fibre, vitamin K, vitamin A, pharmaceutical intermediates, etc.

(4) Photo Grade: The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.

0kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.

 

Molecular Formula : Na2S2O5

Molecule Weight : 190.12

CAS NO .: 7681-57-4

Appearance : White Free Flowing Fine Crystal or Powder

Packing: Packed in 25kg plastic woven bag, 25kg Kraft paper bag, 25kg PE bag, 50

Specification For Food Grade and Industry Grade :

 

Item Quality Index
Food Grade Industry Grade
Purity ( As Na2S2O5) 98.0% min 96.0% min
Sulfur Dioxide( SO2) 65.0% min 65.0% min
Arsenic ( As ) 0.0002% max -
Heavy metals ( As Pb ) 0.0005% max -
Selenium (Se ) 0.0005% max -
Iron (Fe) 0.001% max 0.002% max
Water insoluble 0.02% max 0.05% max
PH value : 4.0-4.8 4.0-4.8
Remark : Conformed with FCC V and E 223 Standard
 

 

 

 

Specification for Pharmaceutical Grade and Photo Grade

Item Quality Index
Pharmaceutical Grade Photo Grade
Purity ( As Na2S2O5) 98.0% min 98.0% min
Sulfur Dioxide( SO2) 65.0% min 65.0% min
Thiosulphate ( As S2O3) : 0.05 % max 0.05% max
Chloride ( As CL-) : 30 ppm max 50ppm max
Arsenic ( As ) : 1ppm max 1ppm max
Lead ( Pb ) : 1 ppm max 2ppm max
Copper (Cu) : 1 ppm max 1ppm max
Iron (Fe ) : 5 ppm max 5ppm max
Mercury (Hg) : 0.1ppm max 1ppm max
Chromium (Cr) : 1 ppm max -
Selenium (Se ) : 1 ppm max 5ppm max
Zinc (Zn) 1 ppm max 1ppm max
Cadmium (Cd ) 1ppm max -
Nickel (Ni) 1ppm max -
Na2SO3 + Na2SO4 1.5% max -
PH value : 4.0-4.8 4.0-4.8
Remark : Conformed with USP standard

 

Storage: Store the product in a dry and cool place.

 

 

 

So2 65% Purity Sodium Metabisulfite Food Additive CAS 7681 57 4 Shelf Life 6-12 Months 0

Contact Details
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Contact Person: Ms.xie

Tel: +8613975090964

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