Potassium Metabisulfite

• CAS No.: 16731-55-8
• Formula: K2s2o5
• EINECS: 240-795-3
• Certification: CCIC, CIQ, RoHS, ISO
• Purity: 90%~99%
• Type: Potassium Metabisulfite
• Model NO.: YR-015
• Appearance: Powder
• Grade Standard: Food Grade
• Color: White
• Uses: Antiseptic
• MW: 222.32
• Molecular Weight: 185.241
• Transport Package: 25kg/Bag
• Specification: 97%
• Trademark: YR
• Origin: China
• HS Code: 28322000
• Production Capacity: 500 Metric Ton/Metric Tons Per Day

Product Description

Potassium Metabisulfite

Product Description
 

Production methods:
In the wet method, potassium bisulfate was prepared into an aqueous solution of 45° Be and added into the reactor. Sulfur dioxide was injected at 80 ° C for the reaction, so that the solution concentration reached 41 ~ 42° Be. Arsenic remover and heavy metal remover were added to purify and filter the solution, and the filtrate was cooled. Crystallization is carried out below 20ºC. After centrifugation and drying, edible potassium metabisulfite was prepared. The edible grade potassium bisulfite was heated and dehydrated by the potassium bisulfite method to prepare the edible potassium metabisulfite product, its 2KHSO3→K2S2O5+H2O

Product Specification

 

 

Test item	Unit	Specification	Test datum
K2S2O5	g/100g	≥97.2	97.2
SO2	g/100g	≥56.0	56.68
K2S2O3	g/100g	<= 0.1	0.002
Na	g/100g	<= 2	0.090
Cl	g/kg	<= 0.5	0.01
pH-value(10%solution)	-	3.8-4.8	4.3
heavy metal(measured by Pb)	mg/kg	<=10	8
As	mg/kg	<= 1	0.05
Cu	mg/kg	<=1	0.3
Fe	mg/kg	<=5	3.6
Hg	mg/kg	<=0.1	0.02
Pb	mg/kg	<=1	0.5
Se	mg/kg	<=1	0.1
Zn	mg/kg	<= 1	0.3
K2SO3 +K2SO4	mg/kg	Remainder	----

Product Application

1. Use as a food bleach, preservative and antioxidant. Long-term consumption of excessive sulfur dioxide food, will cause serious damage to the body, and may even cause cancer.
2. Used as analytical reagent. It is also used as a developing agent, reducing agent and bacterial inhibitor.
3. Potassium metabisulfite is used as an additive in thiosulfate silver plating, and its sodium salt is also used in the treatment of chromium-containing wastewater.
 

Product Packing

 Packaging & Storage
  Potassium Metabisulfite Food Grade is available in one of the following packages:

• 25kg PP bags;
• 25kg paper bags;    
• 1000kg big bags.

Storage & Handling:
  Store in cool, dry and ventilated warehouse.
Separate from acid, oxidizing agent and toxic products; please pay attention to rain, moisture and sunshine


Contact Detalis:
Vanessa Zhao
Senior Business Manager
SHANDONG YURUN CHEMICAL CO.,LTD
Add: Yurun Building,Weifang City,Shandong Province,P.R.China.