Factory Directly Sell with Best Price of Sodium Hydrosulfite

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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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Product Description:

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:

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

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

3) As 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)How many tons does your factory  can supply each moth?

  30000tons/month

2)How to quarantee the quality of the products?

  you can arrange SGS&BV or other quality inspection.

3)How many days you need to pepare the cargo after we made the order?

  within 30 days.

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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 effects of inorganic salts on plant growth?
P: to promote the development of seedlings and flowers open, so that the fruit, the seeds mature early. Lack of performance: the plant is particularly short, leaves were green, and purple.
Q:how come inorganic salts increase surface tension of water?
Surface film tension is the property of a liquid by which it acts as if its surface is a stretched elastic membrane. This tension allows insects to stand on the water’s surface. Surface film tension is caused by the attraction of water molecules to each other; in addition, the surface molecules are attracted to the underlying molecules. The amount of surface film tension is affected by both temperature and dissolved substances. An increase in temperature lowers the net force of attraction among molecules and so decreases the surface tension. An increase in dissolved organic substances also lowers the surface tension However, an increase in dissolved inorganic salts causes a rise in surface tension - increases the attraction of the surface molecules for the underlying molecules.
Q:A colorless solution contains which inorganic salt?
Only Zn compounds form colorless or white salts. The second question would be the last answer, which is false. It forms an alkaline solution when added to water.
Q:what is the function of salts in DNA extraction?
The role of the salt is to neutralize the charge of the DNA's sugar phosphate backbone. This makes the DNA less hydrophilic (less soluble in water). Ethanol has a lower dielectric constant than water so it's used to promote ionic bonds between the Na+ (from the salt) and the PO3- (from the DNA backbone) causing the DNA to precipitate, to extract DNA finally..
Q:What is the physiological function of inorganic calcium
Cells and organisms of the important components
Q:The application of various inorganic salts in the human body?
Protein synthesis, nerve conduction, muscle contraction, body temperature regulation, complete cell maintenance and energy metabolism are inseparable from the magnesium.Many studies have confirmed that people lack of magnesium, often headache, irritability, emotional stress, limb weakness, depression insomnia, Children will grow and develop obstruction.Human blood levels of the body if the sudden decline, can lead to arrhythmia or coronary heart spasm, decreased immunity, women will appear dysmenorrhea.
Q:Is urea an inorganic salt?
Is not organic matter ah inorganic salts are present in the body and food minerals in the mineral, composed of organic matter and inorganic synthesis of the human body has been found to have more than 20 kinds of essential inorganic salts, about 4 to 5% of body weight. More (> 5g) for calcium, phosphorus, potassium, sodium, chlorine, magnesium, sulfur seven; daily dietary requirements are more than 100mg, known as constant elements. Other low content, with the modern analysis of technological progress Iron, copper, zinc, manganese, cobalt, molybdenum, selenium, chromium, nickel, silicon, fluorine, vanadium and other elements were found by atomic absorption spectroscopy, neutron activation, plasma emission spectroscopy and other trace analysis methods. But also the human body is necessary, the daily dietary requirements for the amount of μg ~ mg called trace elements.
Q:Why can quaternary ammonium salts catalyze the heterogeneous reaction between water-soluble inorganic salts and organic compounds
Quaternary ammonium salts have the characteristics of surfactants, with the water phase of the nucleophile in the composition of the ion pair, into the organic phase, thereby promoting the heterogeneous reaction faster 6224
Q:Effects of Minerals on Plants
Minerals have a significant effect on plants, plants require about 25 elements, CHONPS Na Mg AL B MO Ca Fe Zn, etc. Most of these minerals have these elements, which are absorbed in the soil by roots and transported to plants Different parts, the role of a lot of plants lack of mineral leaves will be yellow, such as if there is no Mg, it can not be normal photosynthesis, because Mg is the necessary elements of synthetic chlorophyll, etc., if you want to know more profound, you can put each Kind of elements are checked.

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