factory 98% food/tech grade Sodium metabisulfite

factory china Na2S2O5 good sodium metabisulfite 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.
Specification for food grade and industry grade:

Item	Quality Index
	Food Grade		Industry Grade
Purity ( As Na2S2O5)	98.0% min		97.2% 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
Item		Quality Index
		Pharmaceutical Grade		Photo Grade
Purity ( As Na2S2O5)		98.0% min		98.0% min
Sulfur Dioxide( SO2)		65.0% min		65.0% min
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; Bleach of paper pulp, bamboo and timber bleach ; Treatment agent of waste water.   (3) Pharmaceutical Grade: In chemical synthesis in the production of acrylic fiber, vitamin K, vitamin A, pharmaceutical intermediates, etc.   Notice:
(1)This product shall be stored in the place where keep ventilation and dry against rain, heated and
avoid under sunlight.
(2)This product shall not be delivered or stored together with acid, metal powder, saw dust, gauze,
paper, sugar, sulfur, and other organic tinder and regulated.
(3)Handle with care against friction and bounce while handling and pile. Packaging & Shipping   why choose us 15 years manufacure experience of sodium metabisulfite since year 2000.   Mostly Buyers Rely on Our Stable & Competitive Price! Help u save 5% purchase cost.   We delivery 10% faster than competitiors! While cooperate with Maersk,CMA,COSCO.   98% of our client keep the continue order with us, because of our strictly quality control.   Please have a try to get your quotation in only 30 minutes! We are 24 hours on line. Company Information     Our Services What professional Services we can do? 1. Do the inspection before shipment including taking samples and analysis,taking photos.  2. Select the best shipping company according to different line.  3. Coordinate with the buyers to buy insurance.  4. Claim about quantity should be issued out within 15days after the cargo arriving White quality within 30days.  5. Technical person to solve any problems with our cargo. FACTORY INFORMATION 1.Factory  Size(Sq.Meters):150000 square meters 2.Factory Location:houzhen project area,shouguang city,weifang city ,China 3.Number of Production line :   4 4.Number of R&D Staff: 5-10 people 5.Number of QC people:5-10 people 6.Contract: OEM Service Offered Certification contacts Shouguang Blue Ribbon Chemical Co.,Ltd
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