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Sodium Hydrosulfite 88% 90% 85%

Unit Price: USD 700.0000 / Metric Ton
Payment Type: L/C,T/T,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Min. Order: 22 Metric Ton
Delivery Time: 14 Days

Basic Info

Model No.: 85%/88%/90%

Type: Sodium Sulfate

Appearance: Powder, White Crystalline Powder

Grade Standard: Industrial Grade

Product Name:: Sodium Hydrosulphite

Model No: 85%/88%/90%

CAS No: 7775-14-6

EC NO: 231-890-0

UN NO: 1384

Chemical Formula: Na2S2O4

Quality Standard: HG/T2074—2011

MOQ: 1FCL

Packing: 50kg Drum

Additional Info

Packaging: in 50kg iron drum

Productivity: 100000ton

Brand: Jinhe

Transportation: Ocean,Land,Air

Place of Origin: China

Supply Ability: 100000ton

Certificate: ISO, SGS, BV

HS Code: 283110100

Port: Qingdao,Tianjin,Shanghai

Product Description

Sodium dithionite is often used in physiology experiments as a means of lowering solutions' redox potential (Eo' -0.66 V vs SHE at pH 7).Potassium ferricyanide is usually used as an oxidizing chemical in such experiments (Eo' ~ .436 V at pH 7). In addition, sodium dithionite is often used in soil chemistry experiments to determine the amount of iron that is not incorporated in primary silicate minerals. Hence, iron extracted by sodium dithionite is also referred to as "free iron." The strong affinity of the dithionite ion for bi- and trivalent metal cations (M2+, M3+) allows it to enhance the solubility of iron, and therefore dithionite is a useful chelating agent.

Molecular formula: Na2S2O4
Appearance:  Sodium hydrosulfite is also known as sodium dithionite, and is white crystalline powder or yellowish. It is soluble in sodium hydroxide solution and slightly soluble in ethanol.Powdered anhydrous sodium hydrosulfite with a small amount of water may ignite in air by the heat of decomposition.

Sodium Hydrosulfite 88% 90% 85%

Product specifications:

INDEX

90%

88%

85%

Food Grade

Na2S2O4

≥90%

≥88%

≥85%

≥85%

Fe

≤20ppm

≤20ppm

≤20ppm

≤20ppm

Zinc(Zn)

≤1ppm

≤1ppm

≤1ppm

≤1ppm

Other heavy metal
(calculated as Pb)

≤1ppm

≤1ppm

≤1ppm

≤1ppm

Water Insolubles

≤0.05%

≤0.05%

≤0.05%

≤0.05%

Shelf Life(month)

12

12

12

12

Application:
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching.
2. It is also used in bleaching paper pulps, especially mechanical pulps, it’s the most fitable bleaching agent in pulps.
3. It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products.
4. It is used in mineral, the compound of thiourea and other sulphides.
5. It is used as reducing agent in chemical industry.
6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative in dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.

Packing: 50kg net in iron drums with double inner polybags.

Sodium Hydrosulfite 88% 90%

We are Jinhe Enterprise Co., Limited, Pigment&Dye manufacturing enterprise since 1998, We often supply Titanium Dioxide, Iron oxide, Carbon Black to paint factory, brick factory, rubber factory as well as some distributors or importers, through many years development, we also focus on Leather and textile Manufacturing and Exporting, for example,Sodium Hydrosulfite, Potassium Hydroxide, Basic Chrome Sulphate, Formic Acid, Acetic Acid Glacial, Oxalic Acid, Sodium Formate etc, pls contact me freely.