Potassium sulfite for photographic grade 45%

Potassium sulfite 45% for photographic grade Plastic barrel package: 250 kg per drum (200L) and 1500kg per barrel.

Potassium sulfite 45%                                                                                             

 

 

executive standard: European Photographic grade E225

molecular weight and molecular formula: K2SO3=158.25  

CAS number:10117-38-1

 

Technical index

Test item	Unit	Specification	Test method
K2SO3	g/100g	44.5-45.5	ISO 5990-1996(E)
density(20°C)	kg/l	1.445-1.460	ISO 5990-1996(E)
appearance		colourless or light yellow transparent liquid	ISO 5990-1996(E)
K2S2O3	g/100g	0.01	spectrophotometry
pH value(10%solution)		9.0-10.0	ISO 5990-1996(E)
heavy metal(measured by Pb)	mg/kg	10	AES
Fe	mg/kg	5	AAS
reaction with NH3-AgNO3		qualified	ISO 5990-1996(E)
KCl	g/100g	0.3	IC
sulphate(measured by K2SO4)	g/100g	10.5	IC

 

Product usage:

The products could be used as dechlorination agent in the production of potassium hydroxide ion-exchange membrane and developing protective agent in photographic industry. It could also be used in the textile fabrics for bleaching, calcium removing reagent in tanning industry and as the preservative for food industry.

 

Product package:             

Plastic barrel package: 250 kg per drum (200L) and 1500kg per barrel (IBC drum) or in accordance with user's requirements.

 

Product detail information                                                                                      

 

 

 

 

 

 

Company Infomation                                                                                              

 

 

 

 

 

 

 

 

 

 

 

 

Potassium sulfite for photographic grade 45%