Hot Sale White Crystalline Powder Sodium Sulfite CAS 7757-83-7 Na2so3 Sodium Sulphite Uesde for Reducing Agent

• Customization: Available
• CAS No.: 7757-83-7
• Formula: Na2so3
• EINECS: 231-821-4
• Purity: ≥99%
• Type: Sodium Sulfate
• Shipping Term: Negotiated
• Payment Term: Negotiated
• Transport Package: Bags
• Specification: 25kg/bag
• Origin: China
• HS Code: 2832100000
• Production Capacity: 60000/Year

Product Description

Product Description

Anhydrous sodium sulfite, with the chemical formula of Na2SO3 and a molecular weight of 126.04, is commonly known as sulfur oxide powder or sulfur powder and is an important chemical. It is a white powder or hexagonal prism crystal with a strong smell of sulfur dioxide. It is easily soluble in water, and the aqueous solution is alkaline with a pH value of about 9~9.5. It is slightly soluble in alcohol and insoluble in liquid ammonia.

Physical properties
The solubility of anhydrous sodium sulfite in water varies greatly with temperature. The solubility is 12.54g/100ml water at 0ºC, 28.3g/100ml water at 80ºC, and the highest solubility is about 28g/100ml water at 33.4ºC. It is easily oxidized under the action of humid air and sunlight, but is more stable than sodium sulfite heptahydrate; it will decompose to form sodium sulfide and sodium sulfate when heated.

Chemical properties
Anhydrous sodium sulfite has strong reducing properties, reacts with sulfur dioxide to form sodium bisulfite, reacts with strong acid to form corresponding salt and releases sulfur dioxide. It is easily oxidized under the action of humid air and sunlight to produce sodium sulfate. It will decompose into sodium sulfide and sodium sulfate when heated.

Application fields
Anhydrous sodium sulfite has a wide range of applications in many fields:
Water treatment: used as a deoxidizer for boiler water and oil field injection water, and a dechlorinator for municipal water or industrial water
Printing and dyeing industry: as a deoxidizer and bleaching agent to prevent cotton fibers from being damaged by local oxidation and improve the color and quality of printing and dyeing products
Chemical industry: used as a raw material for the production of chemical products such as sodium thiosulfate, hydrosulfite, sodium pyrosulfite, and is also a catalyst and reducing agent for certain chemical reactions
Papermaking industry: used as a remover of wood cellulose to improve pulp quality and paper strength
Food industry: used as a bleaching agent, preservative, loosening agent and antioxidant to extend the shelf life of food
Pharmaceutical industry: as an intermediate raw material for certain drugs
Photography and electronics industry: used as a raw material for the production of film developers and electronic components such as photosensitive resistors


 

Product Parameters

 

SSA(PH 8-10)

ITEMS	STANDARD
SODIUM SULPHATE	99.0%MIN
WATER INSOUBLE MATTER	0.05%MAX
CHLORIDE(AS CL)	0.35%MAX
Ca+Mg(as Mg)	0.15%MAX
IRON(FE)	0.002%MAX
MOISTURE	0.2%MAX
WHITENESS	82MIN
PH	8-10

 

SSA(PH 6-8)

ITEMS	STANDARD
SODIUM SULPHATE	99.0%MIN
WATER INSOUBLE MATTER	0.05%MAX
CHLORIDE(AS CL)	0.35%MAX
Ca+Mg(as Mg)	0.15%MAX
IRON(Fe)	0.002%MAX
PH	6-8
WHITENESS	82MIN
DENSITY	1.45g/ml MAX

 

 

Detailed Photos

 

Packaging & Shipping

 

 

Company Profile

 

Hubei Highwin New Material Technology Co., Ltd. focuses on the research and development, production and sales of epoxy resin and other chemical raw materials.

We have our own R&D laboratory, by ordinating our suppiers all over the world and manufacturing products with cooperated based factories, we're keeping enhance our competitiveness in the market.
Before developing overseas sales, we have been rooted in chemical raw materials for more than 20 years and have already been one of the top suppliers in China after years of efforts.

There are a group of hard-working, motivated, and creative staff working not only for the company but also for you--our respectable customer and partner! Based on good service and high-quality products, we're widely praised and trusted by customers and keep long-lasting relationships with them.
 

R&D Center

 

FAQ

Q:How to get a sample, is it free?

A:You can contact our sales staff through REQUEST and they will arrange sample shipment for you. We can provide you with free samples, you only need to pay for the shipping cost. For regular customers, sample fee and shipping fee are covered by us!

Q:How can I trust you? How long have you been in this field(Chemical raw material)?

A:Our owner has over 20 years of experience in the chemical raw materials field as well as our staffs. It is because of the trust of our customers and partners that we have been able to exist and develop for so many years. Our ever-lasting vision is to 'Obtain a wide range of customer resources through high-quality procurement and the best service, and establish a sustainable and stable customer relationship'!

Q: Can you offer any other services?

A:Yes! If you learn that there are very competitive products in China that are not within the scope of our display, we'd love to help you find quality resources. It's our honor to provide a one-stop purchasing service for you!

Q:How do you guarantee the quality of your products?

A:All of our products comply with national testing standards and international standards. If you need, we can provide you with certificates.

Q: Can you use customer-specific labeling and packaging?

A: Of course, you can provide us with the specified labeling and packaging and we will be happy to follow up with you.assist you. If there is anything else you need, please feel free to communicate with us!

Q: How about the delivery time?

A: We can’t give you the exact time because of different locations, but we can guarantee that we will ship your order as soon as possible after you place it and we will keep an eye on the logistics to remind you to receive the goods.