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Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life

Categories Sodium Sulfite Food Grade
Brand Name: Kemsky
Model Number: vegetable preservative sodium sulfite
Certification: ISO 9001 SGS
Place of Origin: Hunan
MOQ: 1 metric ton
Price: usd 430 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: vegetable preservative sodium sulfite
other name: anhydrous sodium sulphite vegetable preservative
shelf life: 24 months
usage: preservative for vegetable and fruit
packing: 25 kgs plastic woven bag
CAS NO: 7757-83-7
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Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life


SODIUM SULPHITE

SODIUM SULFITE ANHYDROUS

FOOD AND TECH GRADE

PRESERVATIVE FOR VEGETABLE AND FRUIT


96% Anhydrous Sodium Sulfite Na2SO3
1,Stable quality and reasonable price
2,Hot-sell in the global market
3,SGS,BV,CIQ.

96% Anhydrous Sodium Sulfite Na2SO3


Appearance: white crystal or powder
Density (g/cm3): 1.561
Solubility: Soluble in water, water solution is alkaline. indissolvable in ethanol
Specification:


ITEMSPremium grade
Super gradeFirst gradeSalable product
Sodium sulfite ( Na2SO3 ) , % ≥97.096.093.0
Fe , ≤0.0030.0050.01
Water insoluble matter , % ≤0.020.030.05
Free alkali ( as Na2SO3 ) , % ≤0.100.400.60
Na2SO4 , % ≤2.50//
NaCl , % ≤0.10/

/


Application:Used in artificial fiber stabilizer, fabric bleach, photographic contrast extravasation, dye bleaching deoxidizer, spices and dye reductant, paper lignin removal agent.

Details


Basic information

Product Name:Sodium sulfite
Synonyms:Sodium sulfite anhydrous;SODIUM SULFITE, EXSICCATED;SODIUM SULPHITE;anhydroussodiumsulfite;disodiumsulfite;exsiccatedsodiumsulfite;natriisulphis;natriumsulfid
CAS:7757-83-7
MF:Na2O3S
MW:126.04
Product Categories:Inorganic Chemicals;Inorganics;Water Ttreatment Chemicals;Analytical Reagents for General Use;Disulfide Bridge Cleavage Reagents;Denaturation;Synthetic Reagents;ACS GradeBiochemicals and Reagents;Synthetic Reagents;inorganic compound;Paper, glass, printing and dyeing
Mol File:7757-83-7.mol

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.


Physical and chemical properties:
White crystalline or powder form; triangular prism crystal shape; alkaline water solution with pH at 9 – 9.5; The highest water solubility is about 28% with temperature at 33.4°C. When exposed to air, it is oxidized to form sodium sulfate. When heated to high temperature, it decomposes to form sodium sulfide; Density: 2.633(15.4°C), Refractive Index: 1.565; Molecular Weight: 126.04.


Chemical Properties

melting point500 °C
density2.63
refractive index1,484
storage temp.Store at RT.
solubilityH2O: 1 M at 20 °C, clear, colorless
Water Solubility23 g/100 mL (20 ºC)
SensitiveHygroscopic
StabilityStable. Incompatible with strong acids. Moisture and air sensitive.

Technical specification

Specification

Index name

Analytically pure-ARChemical pure-CPHigh purity
Content(Na2SO3)≥97.0≥95.0≥96.0
Clarity testQualifiedQualified
Water insoluble≤0.005≤0.01≤0.03
Sulphurous acid( counted by Na2HSO3 )QualifiedQualified
Free alkali( counted by Na2CO3 )≤0.1≤0.3≤0.5
Chloride(Cl)≤0.005≤0.02≤0.05
Thiosulfuric acid(S2O3)≤0.01≤0.02≤0.04
Ferrum(Fe)≤0.0005≤0.002≤0.003
Heavy metal(counted by Pb)≤0.001≤0.002≤0.003
Arsenic(As)≤0.0001≤0.0005≤0.001

Specification:

Anhydyous sodium sulphite
English nameAnhydyous sodium sulphite
Molecular formulaNa2SO3
Technical specificationsHigh purity gradeRefined gradePhotographic gradeIndustrial gradeIndustrial gradeIndustrial grade
Sodium sulfiteSodium sulfiteSodium sulfiteHigh-class productHigh-class productFirst grade product
Na2SO3 ≥ %989897989796
Fe ≤ %0.00050.0020.0050.0030.0030.005
Water insoluble ≤ %0.0050.010.050.020.020.03
Free alkali ≤ %0.10.30.150.10.10.4
Sodium sulfate ≤ %1.51.51.52.5
Sodium chloride ≤ %0.0050.020.010.1
Heavy metal on Pb≤ %0.0010.0020.002
As ≤ %0.00010.0005
Sodium thiosulfate ≤%0.010.020.03
Aqueous solution appearanceQualifiedQualifiedQualified
Reaction of silver nitrate ammonia solutionQualified


When producing Sodium sodium metabisulfite(SMBS), during the manufacture process there is SO2 gas can come from sulphur, pyrite, hydrogen sulfide incineration or other tail gas problem and waste treatment control .


Quality Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life for sale
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