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ISO 9001 Sodium Metabisulfite Food Grade So2 65% Purity SMBS Nutrient Retention Agent

Categories Sodium Metabisulfite Food Additive
Brand Name: Kemsky
Model Number: smbs -a1
Certification: ISO 9001,sgs
Place of Origin: Hunan
MOQ: 1 metric ton
Price: usd 300 per metric ton
Payment Terms: T/T , L/C
Supply Ability: 3000 tons per month
Delivery Time: 5-8 days
Packaging Details: 25 kgs bag,1000 kgs big bag
name: Sodium Meta Bisulphite
other name: for food use sodium pyrosulphite
shelf life: 12 months/365 days
usage: food additive preservative, antioxidant,antistaling agent,
mocular: Na2S2O5
raw material: sulphur, soda ash
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ISO 9001 Sodium Metabisulfite Food Grade So2 65% Purity SMBS Nutrient Retention Agent

Sodium Metabisulfite/Sodium Meta Bisulphite

sodium metabisulfite

Product Description

Sodium Metabisulfite

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.
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, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.

Specification For Food Grade and Industry Grade :

ItemQuality Index
Food GradeIndustry Grade
Purity ( As Na2S2O5)98.0% min96.0% min
Sulfur Dioxide( SO2)65.0% min65.0% min
Arsenic ( As )0.0002% max-
Heavy metals ( As Pb )0.0005% max-
Selenium (Se )0.0005% max-
Iron (Fe)0.001% max0.002% max
Water insoluble0.02% max0.05% max
PH value :4.0-4.84.0-4.8
Remark :Conformed with FCC V and E 223 Standard

Specification for Pharmaceutical Grade and Photo Grade

ItemQuality Index
Pharmaceutical GradePhoto Grade
Purity ( As Na2S2O5)98.0% min98.0% min
Sulfur Dioxide( SO2)65.0% min65.0% min
Thiosulphate ( As S2O3) :0.05 % max0.05% max
Chloride ( As CL-) :30 ppm max50ppm max
Arsenic ( As ) :1ppm max1ppm max
Lead ( Pb ) :1 ppm max2ppm max
Copper (Cu) :1 ppm max1ppm max
Iron (Fe ) :5 ppm max5ppm max
Mercury (Hg) :0.1ppm max1ppm max
Chromium (Cr) :1 ppm max-
Selenium (Se ) :1 ppm max5ppm max
Zinc (Zn)1 ppm max1ppm max
Cadmium (Cd )1ppm max-
Nickel (Ni)1ppm max-
Na2SO3 + Na2SO41.5% max-
PH value :4.0-4.84.0-4.8
Remark :Conformed with USP standard


(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.

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

Packing photo:

1000kg Jumbo bag25kg P.P woven bag
25kg Kraft paper bag25kg PE bag

Sodium Metabisulfite Products

►Sodium Metabisulfite Food Grade

►Sodium Metabisulfite Industrial Grade

►High Purity Sodium Metabisulfite

►Refine Level Sodium Metabisulfite

►Sodium Metabisulfite Phamaceutical Grade

►Sodium Metabisulfite Photo Grade

Sodium Metabisulfite Food Grade Specifications

ItemSpecificationTesting Result
Purity (AS Na2S2O5 )97.0% Min97.6%
Sulfur Dioxide (SO2)65.0% Min65.8%
Arsenic (As)0.0002% Max0.00005%
Heavy Metals (As Pb)0.0005% Max0.0003%
Selenium (Se)0.0005% Max0.00006%
Iron (Fe)0.002% Max0.001%
Water Insoluble0.02% Max0.014%
Ph Value4.0~4.84.5

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