Sodium Formaldehyde Sulfoxylate rongalite 98% cas 149-44-0

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Price:RUB 124,307.54 - RUB 135,608.22
Price in USD:Details


Product Overview


Formal top quality White soluble sodium formaldehyde sulfoxylate rongalite

Indicator name
Sodium bisulfate formaldehyde content%>=
Dissolved state
Soluble in water was clear or slightly cloudy
Not black
No smell or little leek flavor
Synthetic rubber, sugar, food industry as bleach
Heat of Fusion
54.84 KJ/mol( 13.2Kcal/mol)
Hygroscopic Point
Relative Humidity 60%
clear or sight turbid
No smell or a little smell of leek


45%(20 °C):1.2 dose of water is necessary for dissolving away 1 dose of Rongalite at 20°C. 50%(70 °C):1 dose of water is necessary for dissolving avay 1 dose of Rongalite at 70°C.

Chemical Properties

Presenting a powerful reduction behaviour, it acts as a salt of alkaline protection.
a. Easy to deliquescent, emit heat, begin to decompose at 80°C, and sulfurated hydrogen H2S being release:
b.Decompose completely when the temperature rises to 110°C, the intramolecular formaldehyde are splitted out, and then nascent hydrogen which is possessed of the strongest reducing power are produced :
NaHSO2 + H2O —→ NaHSO2+ 2[H]
c.Under the influence of acidity, decompose at PH >3, emit H2S, so that it sould be present in alkline medium PH >8.
d.Decompose on contacting oxidant, take I2 for example:
NaHSO2·CH2O+2H2O+2I2 —→ NaHSO4+4HI+CH2O


It is mainly used as a discharging agent, color-discharging agent, reductant in printing and dyeing industry, as an activating agent for production styrene-butadise rubber and synthetic resin, also be used to decolourize and bleach some organic matters, for example: as a bleaching agent in synthetic rubber, sugar-making, and food industries. It may be substituted for the sodium hydrosulfite in some special conditions.


Should be stored in a dry, cool and dark place. Protected from moisture, avoided exposure to direct sunshine. Don’t to let it be rained on. Be sure not to store it together with oxidant and acid, no presence of acidic vapour in storage life is one year.

Contact person

Candy Chuh

Q1: How can I get a sample from you to test?
A: We are honored to provide the free sample for you, you just need to pay for the freight cost.

Q2: What’s your payment terms?
A: We can accept T/T,and L/C at sight as payment term.

Q3: What about the delivery time?
A: For sample it is about 3-5 days; the delivery time for formal order is within 15days after receiving your payment.

Q4: What documents you provide?
A: Usually, we provide Commercial Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your
markets have any special requirements, let us know.
Company Profile

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