Sodium Metabisulfite 7681-57-4, China Sodium Metabisulfite 7681-57-4 Manufacturers, China Sodium Metabisulfite 7681-57-4 Suppliers

Sodium Metabisulfite

Category :

Inorganic chemicals

EC NO : 231-673-0

Molecular Formula : Na₂S₂O₅

Main Specifications :

Synonyms : Sodium pyrosulfite;disodium disulphite;Sodium metabisulphite;Sodium disulphite;Sodium pyrosulphite;SODIUM DISULFITE;disodium oxidosulfanesulfonate oxide;Sodium Metabi;Metabisulfite Sodium;Sodium Metabisulfite (Food Grade);

Molecular Structure:

Product description:

Property: white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is 1.4, easy to dissolve in water and glycerin, water solution. It has acidity,and its solubility will become large while raising the temperature and is less to dissolve in ethanol.
Molecular Formula : Na2S2O5
Molecule Weight : 190.12
CAS NO .: 7681-57-4
Appearance : White Free Flowing Fine Crystal or Powder
Packing: Packed in 25kg plastic woven bag, 25kg Kraft paper bag, 25kg PE bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.

Specification For Food Grade and Industry Grade :

Item	Food Grade		Industry Grade
Purity(As Na₂S₂O₅)	≥98.0%	≥97.0%	≥96.0%
Sulfur Dioxide(SO₂)	≥65.0%	≥65.0%	≥65.0%
Arsenic(As)	≤0.0002%	--	≤0.0001%
Heavy Metals(As Pb)	≤0.0005%	--	--
Selenium(Se)	≤0.0005%	--	--
Iron(Fe)	≤0.002%	≤0.005%	≤0.005%
Water Insoluble	≤0.02%	≤0.05%	≤0.05%
PH Value	4.0-4.8	4.0-4.8	4.0-4.8
Remark	Conformed with FCCV and E223 Standard

Specification for Pharmaceutical Grade and Photo Grade

Item	Pharmaceutical Grade	Photo Grade
PURITY(AS Na₂S₂O₅)	≥96.0%	≥96.5%
SULFUR DIOXIDE(SO₂)	≥65.0%	≥65.0%
CHLORIDE(As NaCL)	≤0.003%	≤0.005%
ARSENIC(As)	≤0.0001%	≤0.0001%
HEAVY METALS(As Pb)	≤0.0005%	≤0.0008%
SELENIUM(Se)	≤0.0001%	≤0.0005%
IRON(Fe)	≤0.001%	≤0.001%
Copper(Cu)	≤0.0001%	≤0.0001%
Nickel(Ni)	≤0.0001%	--
WATER INSOLUBLE	≤0.01%	≤0.01%
PH VALUE:	4.0-4.8	4.0-4.8

Send your inquiry to Sodium Metabisulfite supplier

Company：	Shandong Xunhua Chemical Co.,Ltd.
Contact：	Charles Li
Phone：	+86-536-5191398
Mobile phone：	+86-15853656855
Fax：	+86-536-5191398
E-mail：	Contact Supplier
Website：	http://www.xunhuachem.com
Address：	100Meters,West of the Road North Of The Cross Of Shengcheng Street And Yingbin Road,Shouguang Shangdong
Zip Code：	262799