INDUSTRY GRADE SODIUM METABISULFITE 97.2%

INDUSTRY GRADE SODIUM METABISULFITE 97.2% System 1

INDUSTRY GRADE SODIUM METABISULFITE 97.2%

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 3000 m.t./month

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pecification For Food Grade and Industry Grade :

Item	Quality Index
Item	Food Grade	Industry Grade
Purity ( As Na2S2O5)	98.0% min	96.0% min
Sulfur Dioxide( SO2)	65.0% min	65.0% min
Arsenic ( As )	0.0002% max	-
Heavy metals ( As Pb )	0.0005% max	-
Selenium (Se )	0.0005% max	-
Iron (Fe)	0.001% max	0.002% max
Water insoluble	0.02% max	0.05% max
PH value :	4.0-4.8	4.0-4.8
Remark :	Conformed with FCC V and E 223 Standard

Specification for Pharmaceutical Grade and Photo Grade

Item	Quality Index
Item	Pharmaceutical Grade	Photo Grade
Purity ( As Na2S2O5)	98.0% min	98.0% min
Sulfur Dioxide( SO2)	65.0% min	65.0% min
Thiosulphate ( As S2O3) :	0.05 % max	0.05% max
Chloride ( As CL-) :	30 ppm max	50ppm max
Arsenic ( As ) :	1ppm max	1ppm max
Lead ( Pb ) :	1 ppm max	2ppm max
Copper (Cu) :	1 ppm max	1ppm max
Iron (Fe ) :	5 ppm max	5ppm max
Mercury (Hg) :	0.1ppm max	1ppm max
Chromium (Cr) :	1 ppm max	-
Selenium (Se ) :	1 ppm max	5ppm max
Zinc (Zn)	1 ppm max	1ppm max
Cadmium (Cd )	1ppm max	-
Nickel (Ni)	1ppm max	-
Na2SO3 + Na2SO4	1.5% max	-
PH value :	4.0-4.8	4.0-4.8
Remark :	Conformed with USP standard

Application:

(1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).

(2) Industry Grade: Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of Stap; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde
The hide profession employ to do to molt dose and pliable dose and wearproof dose; sewage treatment, and so on .

(3) Pharmaceutical Grade: In chemical synthesis in the production of acrylic fibre, vitamin K, vitamin A, pharmaceutical intermediates, etc.

(4) Photo Grade: The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.

Storage: Store the product in a dry and cool place.

Q: Are plants absorbing water and inorganic salts only through root tip or wrong? The: This is wrong.

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: Milk food rich in nutrition, in addition to containing a variety of inorganic salts which also contain three types of organic energy can be organic: Calcium, protein, and vitamins

Q: In order to prove that magnesium is an essential salt for soybean life, two soybean seedlings with the same growth status are taken, one of them is cultured in magnesium-containing culture medium and the other is cultured in (). A. Pure water B. Sand without sand. Water containing only magnesium. Media containing no magnesium: Biological control experiments were the only variable experiments. The question that is being explored is the variable, and the other quantities are the same. In a different amount (conditions) the same circumstances to modify a data variable in order to get the data variables on the experimental changes in the law. In order to prove that magnesium is essential for the life of soybeans, the variable is the presence or absence of magnesium. Can be designed as a magnesium-containing culture medium and magnesium-free culture medium. The other amount of the same as the amount of culture medium, soybean seedling growth status, the same number, while placed in the same place, etc., to ensure that only one variable that is the presence of magnesium.

Q: Does the lack of inorganic salts cause convulsions?: The lack of important substances in the salt body is indeed the use of salt to protect the health of important substances than the calcium and phosphorus main body bone calcium blood coagulation muscle contraction and nerve cell regulation very important phosphorus calcium with the same function of food are preserved phosphorus body lack of calcium muscle spasms Can be rash dyspnea gastrointestinal paralysis and other body no phosphorus calcium calcium phosphate can be used to make bone calcium and phosphorus with a reasonable reason to play its role in the use of salt my body's non-essential body about 50 grams of salt according to 0 --- 2 5 grams To follow the excreta outside the body need to be added or otherwise the body of the production capacity of the body is extremely lack of salt can be fainting disease to speed up or even cause muscle weakness in the iron content and its role is not important in vivo iron deficiency anemia and other iron deficiency

Q: Cells are composed of water and inorganic salts or by organic matter and none: There are, but the water accounted for most of the inorganic salt to maintain cell acid and alkali balance;

Q: Please help me!: This Site Might Help You. RE: Why is sodium chloride(salt) an inorganic compound? Please help me!

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.