Item

 

SODIUM SULFITE,ANHYDROUS

Original
price: Negotiable
minimum:
Total supply:
Delivery term: The date of payment from buyers deliver within days
seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-29 00:18
Browse the number: 54
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Product details

Molecular Formula: Na2SO3
Molecule Weight: 126.04
Appearance: white or light yellow crystalline powder

Specifications
Food Grade:
Quality standard:
GB1894--2005

 

Item

Value

sodium sulfite (Na2SO3), mass fraction/%

≥ 97.0

Fe, mass fraction/%

≤ 0.01

Free alkali(as Na2SO3), mass fraction/%

≤0.60

Heavy metals(as Pb), mass fraction/%

≤0.001

As (As), mass fraction/%

≤0.0002

Clarity

Passed

Tech Grade:
Quality standard:
HG/T 2967-2000

Item

Value

Top-grade

First grade

Qualified product

sodium sulfite (Na2SO3),%

≥ 97.0

≥ 96.0

≥ 93.0

Fe,%

≤ 0.003

≤ 0.005

≤ 0.02

water-Insoluble ,% water-Insoluble ,%

≤ 0.02

≤ 0.03

≤ 0.05

Free alkali(as Na2SO3),%

≤ 0.10

≤ 0.40

≤ 0.80

Sulfate(as Na2SO4),%

≤ 2.5

-

-

Chloride(as NaCl),%

≤ 0.10

-

-

 

Uses:dechlorinating agent, bleaching agent, developer, reductant, stabilizer, or used in papermaking, electronic and water treatment industry.

Packing:in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, kraft bag, etc.

Net weight:25,50,1000kilograms per bag or following your demand

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