| CAS No.: | 7775-14-6 |
|---|---|
| Formula: | Na2s2o4 |
| EINECS: | 231-890-0 |
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Even disulfite sodium belongs to a class of wet flammable goods, also known as low sodium sulfite.The products are na2s2o4.2h2o and Na2S2O4.The former is white fine crystal, while the latter is light yellow powder.Relative density 2.3-2.4, decomposed in red heat, soluble in cold water, decomposed in hot water,
1. Properties: white sand crystal or light yellow powder
2. The melting point (ºC) : 52 ~ 55 (decomposition)
3. The boiling point (ºC) : 130 (decomposition)
4. Relative density (water =1) : 2.1~2.2
5. The ignition temperature (ºC) : 250
6. Solubility: soluble in water.
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Product Name
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Sodium Hydrosulphite/Sodium Hydrosulfite
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Purity
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85% 88% 90%
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CAS NO.
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7775-14-6
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Appearance
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White Crystal Powder
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MF
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Na2S2O4
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HS Code
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2831101000
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EINECS NO.
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231-890-0
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UN NO.
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1384
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SODIUM HYDROSULFITE 85%
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ITEM
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STANDARD
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TESTING RESULT
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Purity(wt%)
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85min
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85.84
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Na2CO3(wt%)
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3-4
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3.41
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Na2S2O3(wt%)
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1-2
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1.39
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Na2S2O5(wt%)
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5.5 -7.5
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6.93
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Na2SO3(wt%)
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1-2
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1.47
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Fe(ppm)
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20max
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18
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Water lnsoluble
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0.1
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0.05
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HCOONa
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0.05max
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0.04
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Appearance
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White crystalline powder
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|
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Odor
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No or light sulfurous acid
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|
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SODIUM HYDROSULFITE 88%
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|||||
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Na2S2O4%
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Water insolubles%
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Heavy Metal Content(ppm)
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Na2CO3%
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Fe(ppm)
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Zn(ppm)
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88 MIN
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0.05MAX
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1MAX
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1-5.0
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20MAX
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1MAX
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88.59
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0.043
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0.34
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3.68
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18
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0.9
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APPRIENCE:WHITE CRYSTALLINE POWDER
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ODOR: ORDORLESS OF SULFUR DIOXIDE
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(1). Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile bleaching .
(2). It is also used in bleaching paper pulps , especially mechanical pulps, it's the most fittable bleaching agent in pulps.
(3). It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
(4). It is used in mineral, the compound of thiourea and other sulphides.
(5). It is used as reducing agent in chemical industry.
(6). Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.
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.
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.
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