Sodium Hydrosulphite with High Quality and Good Offer

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Loading Port:
Qingdao
Payment Terms:
TT or LC
Min Order Qty:
22 m.t.
Supply Capability:
3000 m.t./month

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1.Structure of Sodium Hydrosulfite Description:

Commodity name: Sodium Hydrosulfite Na2S2O4 Sodium Hydrosulfite Sodium Dithionite Price

Molecular formula:Na2S2O4

Molecular weight:174

CAS Number 7775-14-6

H.S code 28311010

UN number 1384

Class 4.2

2.Main Features of Sodium Hydrosulfite:

 

It is a versatile chemical that's used in the manufacture of a variety of products we all use every day, 

from photographic film to wine; from fine writing papers to leather goods; from colored fabrics to metal recovery.

 

While the applications for this chemical workhorse are as vast and as varied as the industries that use it, 

in most cases, sodium hydrosulfite performs one of the following three roles:

1As reducing agent, hydrosulfite chemically reduces othercomponents by donating an electron or electrons

2As sulfonating agent, hydrosulfite adds sulfur to another chemical compound

3As cation source, hydrosulfite adds a cation, or sodium, to a product system

 

3.Sodium Hydrosulfite Images

 

 

4.Sodium Hydrosulfite Specification

 Standard:HG2932-1999

Index

Technical Grade 

HG/T 2074-2011

Food Additive

GB 22215-2008

Na2S2O4, 

≥ 90%

≥ 88%

≥ 85%

≥ 88%

Iron (Fe), 

≤20ppm

≤ 20ppm

≤ 20ppm

≤ 20ppm

Zinc (Zn), 

≤ 1ppm

≤ 1ppm

≤ 1ppm

≤ 1ppm

solution appearance

clear

clear

clear

clear

EDTA, 

/

/

/

qualified

Arsenic(As), 

/

/

/

≤ 1ppm

Other heavy metal( As Pb), 

≤ 1ppm

≤ 1ppm

≤ 1ppm

≤ 1ppm

Formate (As HCHO), 

/

/

/

≤ 0.05%

water insolubles, 

≤ 0.05%

≤ 0.05%

≤ 0.05%

/

Cadmium (Cd) 

/

/

/

≤ 2ppm

Plumbum (Pb) 

/

/

/

≤ 5ppm

5.FAQ

1, are you a trade company or factory?

  We are a trade company. 

 

2what is your main product?

  My main product is ammonium chloride all grade. We have special advantage in FEED 

  GRADE.

 

3, how do you control the quality?

  We do quolity control by the factory testing department. We also can do FDA,BV, SGS or any orther Third-party testing. 

 

4, how about your packing?

  My main packing is 25kg or 1000kg PP PE or kraft bag , with or withour pallets,with or without anticaking. We also can make packing and shipping mark are your ask, such as 50kg/50bl bag. 

 

5, how long time you can make the shipping?

  We can make the shipping within 5-10day after confirm the order. 

 

6, why you buy from me?

  We have stable quolity and price, not best quolity and price. It is not true for best quolity and best price. Our factory is manufacture according the BP USP and FCCIV terms. We have in this line for more than 8 years. We are one of the biggest exporter from Qingdao port.

 

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Q:Does the inorganic salt fight the mass spectrum?
Can it be specific? What mass spectrometer, which inorganic salts. Do EI need samples can be vaporized, inorganic salts obviously not appropriate
Q:How to isolate the effects of inorganic salts on enzyme solubility
The raw materials of cotton stalk were pretreated with inorganic salt to dissolve part of lignin and hemicellulose, so as to improve the enzymatic hydrolysis efficiency. Sulfuric acid, sulfuric acid and sulfuric acid were used to pretreat the cotton stalk. The solid solution was separated and the lignin removal rate and the elution rate of the pentosan were determined. The solid phase was hydrolyzed at 50 ℃. Enzyme hydrolysis conversion rate; the process of glucose, pentosan, lignin for material accounting.
Q:How do inorganic salts enter the water?
Many of these materials enter the water through natural channels---minerals, salts and the like come from exposure to rocks, dirt and other inorganic materials.
Q:Can inorganic salts be tested by LC / MS?
LC-MS mass spectrometer for organic matter, inorganic salts can not be atomized not applicable, and will pollute the instrument.
Q:Does the plant roots absorb inorganic salt ions must be active
Plants absorb inorganic salts and do not necessarily absorb water. Plants absorb moisture and absorb inorganic salts are two relatively independent processes. Plants absorb moisture through the infiltration of root cells to absorb water, the process is essentially free of water diffusion process, neither the carrier nor the need for energy; and plant absorption of inorganic salts is carried out by means of active transport, This process requires the carrier and consumes the energy generated by cell metabolism. Of course, plant water absorption and absorption of inorganic salts are a certain association, inorganic salts to be dissolved in water to be absorbed, and inorganic salt ions in the transport of plants can not be separated from water.
Q:What are the important physiological effects of inorganic salts in cells
Maintain the normal life of the organism
Q:what percent of dissolved salts found in seawater are minor inorganic salts, or trace?
Seawater varies in composition a little but generally is about 3.5% salts. Of this about 3.1% is sodium chloride. So the remaining 0.4% is the other salts (Magnesium, Calcium and Potassium mostly, followed by just about every natural element in the periodic table in trace amounts)
Q:What does salt form when it dissolves?
Most inorganic salts are ionic in nature and therefore it will dissociate in ions. For example Copper sulphate will dissociate in Cu+2 and SO4 -2 ions. If the dissociation energy of the salt is too high, it will remain partially or completely as salt in the solution. large number of organic salts do not dissociate completely and the solution will contain Ions and salt - both.
Q:Inorganic salt through what way into the human body
You eat every day
Q:The content of inorganic salts in the body
The percentage of inorganic salts in human mass is 4 to 5%

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