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97% Purity Bleaching Chemical Sodium Pyroulfite Food Grade White Crystalline Power

Categories Sodium Pyrosulfite
Brand Name: OEM
Model Number: sodium pyrosulfite-p1
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 pyrosulfite food bleaching
other name: sodium metabisulfite food bleaching
color: white crystalline
shelf life: one year
usage: food bleaching
mocular: Na2S2O5
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97% Purity Bleaching Chemical Sodium Pyroulfite Food Grade White Crystalline Power

SODIUM PYROSULFITE/SODIUM METABISULFITE


Product name:Sodium Metabisulphite(Tech Grade/Food Grade),Sodium metabisulfite,SMB 96%
CAS No.: 7681-57-4

Molecular Formula:Na2S2O5

Molecule Weight:190.10
Appearance:White or light yellow crystalline powder

HS Code:28321000
Quality standard: GB1893-86


Specification

SpecificationsIndustrial GradeFood Grade
Na2S2O5%≥96.068.0
SO2%≥64.064.0
Iron(Fe)%≤0.0050.005
Water insolubles%≤0.050.05
PH4.0-4.64.0-4.6
Arsenic(As)%≤0.010.002
Heavy metals, as Pb %≤0.0002

Quality:




ITEM
QUALITY INDEX
Result
Content of Na2S2O5
(calculated by dry base) %
97.2%
Content of SO265%
Content of chloride(NaCl)
(calculated by dry base) %
0.1
ARSENIC0.0001
Content of insolubles in water
(calculated by dry base) %
0.017
Moisture %1.0
Heavy Metal(AS Pb)0.004
Iron(Fe)0.0009
PH Value4.5
Appearance of productWhite fine crystal with slightly yellowish
Packing25kg/bag, polywoven plastic bag outer , and PE film bag inner
ResultFIRST QUALITY
Remark

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);
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 piable dose and wearproof dose; sewage treatment, and so on.
3). Pharmaceutical grade: in chemical synthesis in the production of acrylic fibre, vitamin k, vitmin 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 products in dry and cool place.

Appearance: white free flowing fine crystal or 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: 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.


Product Description

We are a main supplier of 98% Sodium Metabisulfite in China. We can supply you 98% Sodium Metabisulfite with competitive price. The details of the product as follow:


Sodium Metabisulfite
Molecular Formula: Na2S2O5
Molecule Weight: 190.12
CAS NO.:7681-57-4
EC:231-673-0
UN: 2693
HS:28321000





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