good supplier supply large quantity sodium sulfite anhydrous made in china CAS NO.7757-83-7

Our advantages:

1, High quality with competitive price:

1) Standard:BP/USP/EP/Enterprise standard

2) All Purity≥99%

3) We are manufacturer and can provide high quality products with factory price.

2, Fast and safe delivery

1) Parcel can be sent out in 24 hours after payment.Tracking number available

2) Secure and discreet shipment.Various transportation methods for your choice.

3) Customs pass rate ≥99%

4) We have our own agent/remailer/distributor who can help us ship our products very fast and safe, 

and we have stock in there for transferring.

3,We have clients throughout the world.

1) Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet their desire.

2) Market feedback and goods feedback will be appreciated, meeting customers's requirement is our responsibility.

3) High quality,competitive price,fast delivery ,first-class service gain the trust and praise from the customers.

Product Description

 Name:  Na2SO3 98% Sodium Sulfite Anhydrous

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.   

[Implementation of standards]:GB9005-88

Application: 
It is used in dyeing industry as deoxidizer and bleaching agent for a variety of cotton fabric treating and scouring, which can prevent fabrics from local oxidation and deterioration of fibre strength. In

photographic industry it is used as a reagent. In organic industry it is used as reducing agent in production of m-phenylenediamine, 25 - bared oxazolone, amino salicylic acid, etc. Textile industry uses it as a stabilizer for synthetic fibre. Other applications include various uses in paper mills, electronic industry, water treatment, etc.

Company Information

Shaanxi Mingqi Chemical Co., Ltd is committed to the development of import and export trade in the production, operation and plant extracts of pharmaceutical raw materials and intermediates. It has trade with other Asian countries and Europe, the Americas and African countries. Important exporters of pharmaceutical chemical raw materials and the world's latest importers of pharmaceutical raw materials.

    Shaanxi Mingqi Chemical Co., Ltd has always been adhering to the company to market-oriented, customer-centric, with professional and enterprising team spirit and the company's strong financial strength, to provide customers with fast, high quality and efficient services, and always " To benefit customers "for the purpose.

      In the pharmaceutical raw materials and intermediates export business, the company by virtue of years of accumulated experience and high quality and reasonable talent structure, accurate grasp of the market, not only with a number of well-known domestic production enterprises to establish a long-term stable strategic cooperative relations in the global pharmaceutical chemical raw materials And chemical intermediates on the market also won the loyal customer base and a very strong strategic partner, set up a professional image of the outsourcing of pharmaceutical procurement. On the basis of continuing to develop the existing export trade business, the Company has formulated the idea of establishing independent research and development center and constructing the production base of pharmaceutical and chemical products according to the future development trend of the pharmaceutical and chemical industry, and strives to establish the combination of R & D, manufacturing and trade Of the business development model.

      While actively expanding their business and creating economic profits, enterprises do not forget their social responsibility, and actively participate in greening trees, poor students and other social activities, and become a tradition for many years, creating a good social benefits.