Specifications

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Sodium sulfite anhydrous
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Product: Views:164Sodium sulfite anhydrous 
Unit price: Negotiable
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Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-12-29 02:18
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Details

Product Name:

Sodium sulfite anhydrous

CAS NO:

7577-83-7

Molecular Formula:

Na2SO3

Specifications

Item

Grade

Best quality

First quality

Qualifier

Sodium sulfite (Na2SO3) Assay, %

≥ 97.0

≥ 96.0

≥ 93.0

Fe, %

≤ 0.003

≤ 0.005

≤ 0.02

Insol. in water, %

≤ 0.02

≤ 0.03

≤ 0.05

Free alkali (Na2SO3) Assay, %

≤ 0.10

≤ 0.40

≤ 0.80

Sulphate (Na2SO4) Assay, %

≤ 2.5

—

—

Chlorides (NaCl) Assay, %

≤ 0.10

—

 

Packing:

25kg plastic woven bag, 50kg/500kg/1000kg flexible freight bag, or upon clients' demand.

Specifications:

white crystal or powder; pH of aqueous solution: 9-9.5, At 33.4oC,it solubility is 28%. Density: 2.633(15.4oC), refracitive index: 1.565; Molecular weight126.04.
H.S code: 283210

Use:

Used as deoxidant and bleaching agent for printing & dyeing industry; also used for paper making, electronic and water treatment industries.

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