Factory Directly Sell with Cheap Price of Sodium Hydrosulfite
- Ref Price:
-
- 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:
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.
- Q: and what are the kinds of organic compounds?..pls. help me abt. this..thanks!..(^_^)
- I think organic compunds are anything with Carbon(C), although I really don't know.
- Q: Inorganic salt of the inorganic salt function
- Participate in and maintain the metabolic activity of the organism.
- Q: Inorganic salts play an important role in maintaining the life activities of living organisms. It is mainly in the form of living organisms.
- Inorganic salts are mineral nutrients present in the body and in the food. Most inorganic salts in the cells are present in the form of ions, consisting of organic matter and inorganic compounds.
- Q: are there any other foods than water and salt that have an abiotic origin (lifeless, inorganic)?
- water and salt aren't foods. There is no caloric value in them, so they cannot be foods. We live on earth. All foods have an organic origin.
- Q: Do inorganic mercury salts bioaccumulate?
- Yes they do bioaccumulate. Mercury builds up for years and years, and eventually sits in a residue of pure mercury. - JJ
- Q: Is it possible to adjust the internal temperature of the carbohydrate in the vacuole
- The plant has no internal environment.
- Q: Common inorganic salt ions will appear when the corresponding symptoms
- Phosphorus: anorexia, anemia, muscle weakness, bone pain
- 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 are the nutritional requirements for bacterial growth?
- For inorganic salts: bacteria need a variety of inorganic salts to provide a variety of elements of bacterial growth, which requires the concentration of 10.3 ~ 10.4mol / L elements for the common elements, the need for concentration in the
- Q: The addition of inorganic salt viscosity of micelles increased first and then increased again and then reduced, there is no possibility ah? Yes, then what is the reason for the increase ah?
- possible. The inorganic salt is dissolved in water to form positive and negative ions, and the ions of the micelles are extruded to make the solubility smaller and form an increase in the viscosity. With the increase in the amount of inorganic salt, it does not have the ability to dissolve in water, there is no micelles and the molecular state exists in the water, the liquid becomes thin ...
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Factory Directly Sell with Cheap Price of Sodium Hydrosulfite
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT or LC
- Min Order Qty:
- 22 m.t.
- Supply Capability:
- 3000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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