Sodium Hydrosulfite

Short Description:

Other Name: Sodium Dithionite
Cas No.: 7775-14-6
UN No.: 1384
Purity: 85% 88% 90%
Package: 50KG Drum
Quantity: 18-22.5MTS(20`FCL)
HS Code: 28311010
MF: Na2S2O4
Appearance: White Powder
Certificate: ISO/MSDS/COA
Application: Reducing Agent or Bleach

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Product Detail

Product Tags

Product Information

Product Name	Sodium Hydrosulfite	Package	50KG Drum
Other Name	Sodium Dithionite	Cas No.	7775-14-6
Purity	85% 88% 90%	HS Code	28311010
Grade	Industrial/Food Grade	Appearance	White Powder
Quantity	18-22.5MTS(20`FCL)	Certificate	ISO/MSDS/COA
Application	Reducing Agent or Bleach	UN No	1384

Details Images

Certificate Of Analysis

Product Name	Sodium Hydrosulfite 85%
ITEM	STANDARD	TESTING RESULT
Purity(wt%)	85min	85.84
Na2CO3(wt%)	3-4	3.41
Na2S2O3(wt%)	1-2	1.39
Na2S2O5(wt%)	5.5 -7.5	6.93
Na2SO3(wt%)	1-2	1.47
Fe(ppm)	20max	18
Water lnsoluble	0.1	0.05
HCOONa	0.05max	0.04

Product Name	Sodium Hydrosulfite 88%
Na2S2O4%	88 MIN	88.59
Water Insolubles%	0.05MAX	0.043
Heavy MetalContent(ppm)	1MAX	0.34
Na2CO3%	1-5.0	3.68
Fe(ppm)	20MAX	18
Zn(ppm)	1MAX	0.9

Product Name	Sodium Hydrosulfite 90%
Specification	Tolerance	Result
Purity(wt%)	90min	90.57
Na2CO3(wt%)	1 -2.5	1.32
Na2S2O3(wt%)	0.5-1	0.58
Na2S2O5(wt%)	5 -7	6.13
Na2SO3(wt%)	0.5-1.5	0.62
Fe(ppm)	20max	14
Water Insolubles	0.1	0.03
Total Other Heavy Metals	10ppm max	8ppm

Application

‌1. Textile industry‌: In the textile industry, sodium hydrosulfite is widely used in reduction dyeing, reduction cleaning, printing and decolorization, as well as bleaching of silk, wool, nylon and other fabrics. Because it does not contain heavy metals, the fabrics bleached with insurance powder have bright colors and are not easy to fade. In addition, sodium hydrosulfite can also be used to remove color stains on clothes and update the color of some old gray-yellow clothes.

2. Food industry‌: In the food industry, sodium hydrosulfite is used as a bleaching agent and can be used for bleaching foods such as gelatin, sucrose, and honey. In addition, it can also be used for bleaching soap, animal (plant) oil, bamboo, porcelain clay, etc.

3. Organic synthesis‌: In organic synthesis, sodium hydrosulfite is used as a reducing agent or bleaching agent, especially in the production of dyes and medicines. It is a bleaching agent suitable for wood pulp papermaking, has good reducing properties, and is suitable for various fiber fabrics.

4. Papermaking industry‌: In the papermaking industry, sodium hydrosulfite is used as a bleaching agent to remove impurities in pulp and improve the whiteness of paper. ‌

5. Water treatment and pollution control‌: In terms of water treatment and pollution control, sodium hydrosulfite can reduce many heavy metal ions such as Pb2+, Bi3+ to metals, which helps reduce heavy metal pollution in water bodies. ‌

6. Preservation of food and fruits‌: sodium hydrosulfite can also be used to preserve food and fruits to prevent oxidation and deterioration, effectively extending the shelf life of the product.

Although sodium hydrosulfite has a wide range of uses, there are certain dangers in its use. For example, it releases a large amount of heat and toxic gases such as sulfur dioxide and hydrogen sulfide when in contact with water. Therefore, appropriate safety measures need to be taken when using sodium hydrosulfite to prevent accidents.

Textile Industry‌

Food Bleaching

Papermaking Industry‌

Organic Synthesis‌

Package & Warehouse

Package	50KG Drum
Quantity(20`FCL)	18MTS With Pallets; 22.5MTS Without Pallets

Company Profile

Shandong Aojin Chemical Technology Co., Ltd. was established in 2009 and is located in Zibo City, Shandong Province, an important petrochemical base in China. We have passed ISO9001:2015 quality management system certification. After more than ten years of steady development, we have gradually grown into a professional, reliable global supplier of chemical raw materials.

Our products focus on meeting customer needs and are widely used in chemical industry, textile printing and dyeing, pharmaceuticals, leather processing, fertilizers, water treatment, construction industry, food and feed additives and other fields, and have passed the testing of third-party certification agencies. The products have won unanimous praise from customers for our superior quality, preferential prices and excellent services, and are exported to Southeast Asia, Japan, South Korea, the Middle East, Europe and the United States and other countries. We have our own chemical warehouses in major ports to ensure our fast delivery.

Our company has always been customer-centric, adhered to the service concept of "sincerity, diligence, efficiency, and innovation", strived to explore the international market, and established long-term and stable trade relations with more than 80 countries and regions around the world. In the new era and new market environment, we will continue to forge ahead and continue to repay our customers with high-quality products and after-sales services. We warmly welcome friends at home and abroad to come to the company for negotiation and guidance!

Frequently Asked Questions

Need help? Be sure to visit our support forums for answers to your questions!

May I place a sample order?

Of course, we are willing to accept sample orders to test quality, please send us the sample quantity and requirements. Besides, 1-2kg free sample is available, you just need to pay for the freight only.

How about the validity of the offer？

Usually, quotation is valid for 1 week. However, the validity period may be affected by factors such as ocean freight, raw material prices, etc.

Can the product be customized?

Sure, product specifications, packaging and logo can be customized.

What is the payment method you can accept?

We usually accept T/T, Western Union, L/C.