natriumsulfid

natriumsulfid
natriumsulfid

natriumsulfid

Min.Order / FOB Price:Get Latest Price

20 Metric Ton

Negotiable

  • Min.Order :20 Metric Ton
  • Purity: ≥96.00
  • Payment Terms : L/C,D/A,T/T

Keywords

Sulfurous acid, sodium salt Natrium sulfurosum disodium sulfite heptahydrate

Quick Details

  • Appearance:white, monoclinic crystal or powder.
  • Application:Anhydrous sodium sulfite can be used as a developer, for the preparation of cellulose sulfite ester, for the preparation of sodium thiosulfate, as a preservative for dried fruits and meat, as a deoxid
  • PackAge:25kg plastic woven bag
  • ProductionCapacity:200|Metric Ton|Week
  • Storage:store in dry place
  • Transportation:in order

Superiority:

Industrial sodium sulfite

 

 

Physical properties

Appearance and properties: white, monoclinic crystal or powder.
CAS: 7757-83-7
Melting point (°C): 150 (decomposition by loss of water)
Relative density (water = 1): 2.63
Molecular formula: Na 2 SO 3 (·7H 2 O)
Molecular weight: 126.04 (252.04)
Solubility: Easily soluble Soluble in water (67.8 g/100 ml (heptahydrate, 18 °C), insoluble in ethanol, etc.

Function and Uses

1. Used for the micro-analysis determination of tellurium and niobium and the preparation of developing solution, also used as reducing agent;
2. Used as man-made fiber stabilizer, fabric bleaching agent, photographic developer, dyeing and bleaching deoxidizer, fragrance and dye reducing agent , paper lignin remover, etc.;
3. Used as a common analytical reagent and photoresistor material;
4. Reductive bleaching agent, which has a bleaching effect on food and a strong inhibitory effect on oxidase in plant food. my country stipulates that it can be used for candied fruit, with a maximum dosage of 2.0g/kg; it can also be used for glucose, liquid glucose, table sugar, rock sugar, caramel, candy, bamboo shoots, mushrooms and canned mushrooms, grapes, and black currant juice, with a maximum dosage of 0.60g /kg. Residues of bamboo shoots, mushrooms and canned mushrooms, candied fruit, grapes and black currant juice concentrate (calculated as SO2) ≤ 0.05g/kg; potato starch residues ≤ 0.03g/kg; residues of biscuits, sugar, vermicelli and other varieties The amount of liquid glucose is less than 0.1g/kg; the residual amount of liquid glucose shall not exceed 0.2g/kg;
5. In the printing and dyeing industry, it is used as a deoxidizer and bleaching agent for the scouring of various cotton fabrics, which can prevent local oxidation of cotton fibers and affect fiber strength. , and improve the whiteness of boiled matter. The photosensitive industry is used as a developer. In the organic industry, it is used as a reducing agent in the production of m-phenylenediamine, 2,5-dichloropyrazolone, anthraquinone-1-sulfonic acid, 1-aminoanthraquinone, sodium aminosalicylate, etc., which can prevent semi-finished products in the reaction process Oxidation. In the paper industry, it is used as a lignin removal agent. The textile industry is used as a stabilizer for man-made fibers. The electronics industry is used to make photoresistors. In the water treatment industry, it is used for the treatment of electroplating wastewater and drinking water;
6. In the food industry, it is used as a bleaching agent, preservative, loosening agent, and antioxidant. It is also used in pharmaceutical synthesis and used as a reducing agent in the production of dehydrated vegetables;
7. It is used in the production of sulfite cellulose, sodium thiosulfate, organic chemicals, bleaching fabrics, etc., and is also used as a reducing agent, preservative, dechlorination 8. The
laboratory is used to prepare sulfur dioxide

Industrial sodium sulfite

Product name

Sodium Sulfite

Specification

Industrial grade first- class product

Date of production

November 2, 2022

Inspection standards

HG/T 2967-2010

Check Item

standard value

Measured value

Sodium sulfate% (Na 2 SO 3 )

≥96.00

96.13

Iron % (Fe)

≤0.005

0.003

Water insoluble matter%

≤0.03

0.02

Free alkali %(Na 2 CO 3 )

≤0.10

0.07

Chloride%(NaCl)

≤0.10

0.03

Appearance

White powder

White powder

Packing: 25kg plastic woven bag lined with a layer of plastic bag.

Details:

 

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We could give you:

1.Best quality in your requirement

2.Competitive price in China market with standard high quality or customize

3.mature Technical support,Well-trained and professional technologist and sales with rich experience in the field for 5-10 years

4.Professional logistic support,Free sample and correct shipping documents dispatched according to regulations of different countries

All we want is win-win business. Send your inquiries, you will get it!

Why choose us:

1.Factory direct sales, so we can provide the competitive price and high quality product base on 5 years of production and R&D experience

2.It is available in stock for quick shipment. Products could be packaged according to customer’s specialized requirements.

3.The products can be transported by Courier, air or sea.

4.Customers will receive the most professional technical support and efficient service.

5.Any inquiries will be replied within 24hours.

6.High purity with test report.

 

Qingdao Bravery International Trading Co., LTD. is located in the beautiful tourist city of Qingdao, is a comprehensive chemical enterprise which doing import and export business. Product range including, API, pharmacy intermediates,food additive,Surfactant ,fungicides and other general chemicals. etc.

With the developing world market, we adhere to the principle of "quality, service, integrity and development" ,Forge ahead,and constantly in pursuit of higher level of product quality and service.

We warmly welcome customers home and abroad to build mutual trust, mutual benefit and stable cooperation relation.

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