Rongalite Sodium Formaldehyde Sulfoxylate for Sale

• CAS No.: 7542-12-3
• Formula: 0-0-0
• EINECS: 0-0-0
• Model NO.: DBK01
• Certification: ISO
• Purity: 90%~99%
• Type: Sodium Sulfate
• Appearance: Lump
• Grade Standard: Industrial Grade
• Grade: Industry Grade
• Content: 99%
• Standard: GB
• Application: Blenching Agent
• Storage: Cool Dry
• Transport Package: 50kg Drum
• Specification: 50KG
• Trademark: GANGMAO
• Origin: China
• HS Code: 2930909090
• Production Capacity: 50000

Product Description

Product Description

Rongalite Introduction

 

Rongalite, chemically known as sodium formaldehyde sulfoxylate, has the molecular formula \(NaHSO_2·CH_2O·2H_2O\). It appears as a white crystalline powder with a slight sulfur - like odor.

 

Chemical Properties Rongalite is soluble in water and decomposes when heated or in an acidic environment. It is a strong reducing agent, which is why it has found applications in certain industrial processes and has also been misused for its bleaching effect.

 

Historical Usage and Misuse In legitimate industrial settings, Rongalite has several applications. In the textile industry, it is used for bleaching various fabrics. It can effectively remove color impurities from natural and synthetic fibers, helping to achieve a more uniform and bright white appearance. In the paper industry, it serves as a bleaching agent for pulp. By reducing the chromophores in the pulp, it brightens the paper and improves its visual quality. Additionally, in some specific chemical reactions, Rongalite can act as a reducing agent to facilitate certain synthetic processes.

 

However, its most concerning aspect is its illegal use in the food industry. In the past, some unscrupulous traders added Rongalite to food products like flour, dried noodles, and some aquatic products. They did this to make the food appear whiter and more visually appealing. But this practice is extremely dangerous.

Product Parameters

Item	Standard	Result	Conclusion
NaHSO2.CH2O.2H2O	≥98.0%	99.2%	Pass
Solution	Clear or shight turbid	Slight turbid	Pass
	No black	No black	Pass
Appearance	White powder	White powder	Pass
Cu content	/	/	/
Mn content	/	/	/
Solubility in benzene	Insoluble	Insoluble	Pass
Conclusion	First class product

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