Factory Price Wholesale Na2s2o4 Sodium Hydrosulfite CAS No 7775-14-6 as Bleaching Agent

• CAS No.: 7775-14-6
• Formula: Na2s2o4
• EINECS: 231-890-0
• Type: Industrial Grade
• Appearance: Powder
• Quality: Industrial
• Model NO.: SH 01
• Colour: White
• Purity: 74% 85% 88% 90% Min
• Application: Bleaching Agent
• Molecular Mass: Molecular Mass: 174.108
• Density: 2.189 G/Cm&Sup3
• Odor: Faint Sulfur Odor
• Melting Point(ºC): 52 °c (126 °f; 325 K)
• Boiling Point(ºC): 1390 ºC
• Un No: 1384
• Transport Package: Drum
• Specification: 25kg/50kg/100kg
• Trademark: Near Chem
• Origin: Shandong, China
• HS Code: 2831101000
• Production Capacity: 10000000mt/Year

Product Description

   

Product Description

 

  Factory price wholesale Na2S2O4 sodium hydrosulfite CAS No 7775-14-6 as bleaching agent

   

 

 

Product Parameters

   

SH  74%
ITEM	UNIT	STANDARD	ACTUAL DATA
Sodium Hydrosulphite	%	74% min	75. 1
Water insoluble	%	0.3 max	0.01
Sodium thiosulfate: Na2S2O3	%	1.4 max	1.0
Sodium metabisulfite: Na2S2O5	%	5-7	6.1
Sodium bisulfite:NaHSO3	%	0.5 max	0.24
Sodium carbonate: Na2CO3	%	0.6-2 max	1.3
Sodium formate: HCOONa	%	0.5 max	0.2
Zn	%	0.0001 max	0.00002
Fe	%	0.005 max	0.001

 

SH 88%
ITEM	UNIT	STANDARD	ACTUAL DATA
Sodium Hydrosulphite	%	88% min	88.3
Water insoluble	%	0. 1 max	0.002
Sodium thiosulfate: Na2S2O3	%	1.3 max	0.76
Sodium metabisulfite: Na2S2O5	%	5-7	6.1
Sodium bisulfite:NaHSO3	%	0.5 max	0.20
Sodium carbonate: Na2CO3	%	0.6-2 max	1.2
Sodium formate: HCOONa	%	0.05 max	0.01
PH of 1% solution		6.0 min	7.6
Zn	%	1 PPM	0.01
Fe	%	20 PPM	2

More parameters and offers please contact with seller Nearchem Belinda for quotation.

 

Product Application.

Industry
Being water-soluble, sodium dithionite is used as a reducing agent in some industrial dyeing processes. In the case of sulfur dyes and vat dyes, an otherwise water-insoluble dye can be reduced into a water-soluble alkali metal salt (e.g. indigo dye).Sodium dithionite can also be used for water treatment, aquarium water conditioners, gas purification, cleaning, and stripping. It has also been applied as a sulfonating agent. In addition to the textile industry, this compound is used in industries concerned with leather, foods, polymers, photography, and many others, often as a decolourising agent. It is even used domestically as a decoloring agent for white laundry, when it has been accidentally stained by way of a dyed item slipping into the high temperature washing cycle.
It is the an active ingredient in "Iron Out Rust Stain Remover", a commercial rust product.

 

Laboratory
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).

 

Photography
It is used in Kodak fogging developer, FD-70. This is used in the second step in processing black and white positive images, for making slides. It is part of the Kodak Direct Positive Film Developing Outfit.

 

Packaging & Shipping

 

 

 

We have various of packages for different products and we are always pleased to satisfy customers' request.

Packaging:
100kg*180 drums,18 ton/fcl with pallets;

50kg*450 drums,22.5ton/fcl without pallets;

50kg*360 drums,18ton/fcl with pallets; 25kg drumc could also be supplied according to client demand.

Shipping:
Prompt shipment usually 7--14 days after receiving TT deposit or Original LC.

Company Profile

Shandong Near Chemical Co.,Ltd is located in the beautiful Yellow River Delta, the mouth of the Yellow River into the sea-Dongying City. With a registered capital of 30 million yuan, it was founded in 2011 and has grown rapidly with total assets 180 million yuan and 100 employees. Near Chemical is a comprehensive service company focusing on import & export of chemicals and domestic trade. We are integrating rich chemical resources along with individual customized services for all global clients.
Our company adheres to the market-oriented, committing to exploring the diversified international market, as well as the principle of honesty and trustworthiness. The clients of Near Chemical always come first.
In the past decade, Near Chemical has established a stable and friendly partnership with thousands of customers over 60 countries and regions. We have spread wide range of chemicals in various fields such as pharmacy, petroleum, animal husbandry, food processing, printing&dyeing, manufacturing industries etc. Near Chemical now has warehousing, trading, public utilities ,property management and other comprehensive entities, and gradually develop to collectivization, internationalization and Industrialization. Our company has a good development prospect and unlimited potential future. 
Our main production lines are including Methylene Chloride 30,000 tons/year, Maleic Anhydride 30,000 tons/year, Propylene Glycol 20,000 tons/year.  
Meanwhile, we specialized in offering the following chemicals: Aniline,Dimethyl Formamide,Isopropanol ,Toluene diisocyanate,Polyether Polyol,Polymer Polyol, Methyl Acetate, Ethyl Acetate, Butyl Acetate, Glacial Acetic Acid, Potassium Hydroxide, Nitrile Butadiene Rubber Latex, Caustic Soda, Dipropylene Glycol, Ethylene Glycol, Phenol, Phthalic Anhydride, Cyclohexanone, Thiourea, Barium Carbonate, Aluminum Chloride, Calcium Nitrate, N-propanol, Methyl Ethyl Ketone, Methanol, Ethanol, Cyclohexane, Dimethyl Carbonate,  Dichlorodifluoromethane, Dichlorofluoromethane, Trichloroethylene, Tetrachloroethylene, Epichlorohydrin, Sodium Hydroxide Liquid, etc.
We always carry out "quality first and service the best". 

Near Chemical, Near U, Warm the world.

 

Factory Pictures

Our Advantages

10 Years Experiences

Our products have been promoted to all over Europe,North&South America, Middle-east, Asia and pacific area as well as Africa,we have established long term cooperation with our clients.

Quality service
Adhering to the principle of "quality first,service the best" Near Chem insists on providing high quality chemicals based on a complete Quality Assurance System. Meanwhile,we use SOP system to guarantee our whole logistics.  Near Chem has built a mutual trust under honesty and integrity principles with customers all around the world.And will keep promoting our commitment to better a nearer Chem to the world.  
 
24 hour service
24 hours quick and clear respond to our customers all around the world. Professional and individual after sales service to assure the Customer satisfaction.



 

FAQ

 

1 Q:Are you manufacturer?
A: Yes, We are the largest manufacture on Methylene Chloride, Chloroform and Aniline oil. And ready stock on cyclohexanone, Dimethyl Formamide, Propylene Glycol, Ethylene Glycol, Dimethyl Carbonate, Thiourea, Polyol, TDI, IPA, Ethanol etc.

2 Q: How can you guarantee your quality?
A: Our factory owns mature production line under EPR quality system. We can guarantee the stability and qualification of the raw materials. And we also have SOP loading system to ensure the safety and timely transportation.

3 Q: Can I get some samples?
  A:  Yes, we can supply samples free of charge, the courier shipping cost will be prepaid by customers.

4 Q: How to confirm the Product Quality before placing orders?
  A :  You can get free samples from us or taking our previous SGS Reports as reference or arrange SGS before loading.

5 Q: What is your MOQ?
A: Our MOQ is 20'FCL for each product.

6 Q: What kind of package do you have?
A: We have many different packages to meet needs of our customers,like Iron drums,plastic drums, IBC drums, Flexitank, ISO TANK and bags etc.


7 Q :Which kind of payment terms do you accept?
A: TT, LC at sight/ LC 90/120days payment terms are acceptable. 

8 Q:Can you give me a discount price?
A: Yes. It depends on your order qty.

9 Q: How about your delivery? How long is your delivery time?
A: Prompt and reliable delivery by professional shipping lines.
Generally it takes 14 days after deposit or original LC.