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SFS Sodium Formaldehyde Sulphoxylate

SFS Sodium Formaldehyde Sulphoxylate

  • High Light

    SFS Sodium Formaldehyde Sulphoxylate


    149-44-0 SFS


    149-44-0 Sodium Formaldehyde Sulphoxylate

  • Purity
    98% Min, 99% Min
  • Other Names
    SFS; Rongalite C; Sodium Formaldehyde Sulfoxylate
  • Molecular Formula
  • Molecular Weight
  • CAS NO.
    6035-47-8/ 149-44-0
  • H.S. CODE NO.
  • Standard
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
  • Minimum Order Quantity
  • Price
    USD 1800/MT
  • Packaging Details
    50kg iron drum; 25kg bag or as per customers' requirement
  • Delivery Time
    Within 3 Weeks
  • Payment Terms
    L/C, D/P, T/T, Western Union, MoneyGram
  • Supply Ability
    6000MT per year

SFS Sodium Formaldehyde Sulphoxylate

Sodium Formaldehyde Sulfoxylate Rongalite C Lumps/Powder (SFS) used as Textile Dyeing Auxiliary

Basic Information

Model Number: HMHT0033

Other Names: SFS; Rongalite C; Sodium Formaldehyde Sulfoxylate

Molecular Formula: NaHSO2.CH2O.2H2O

Molecular Weight: 154.12

CAS NO.: 6035-47-8/ 149-44-0

EINECS NO.: 205-739-4

H.S. CODE NO.: 28311020

Standard: HG/T2281-2006

Purity: 98% min.;99% min.


Physicochemical Properties


Appearance: White lumps or powder

Melting Point: 64℃

Melting Heat: 54.84 KJ/mol (13.2KCal/mol)

Density: 1.8 g/cm3

Hygroscopic Point: Relative Humidity 60%

Stable Point: <50℃

Water Solubility: 500-600 g/l at 20 ℃ ± 0.5℃ (DECD 105)



Technical Specifications


First grade

Superior grade

NaHSO2·CH2O Content%

98% min.

99% min.

State of Solution

Be soluble in water

and appear in clarification

or micro turbidity

Be soluble in water

and appear in clarification

or micro turbidity


Not in dark

Not in dark

Alkalinity as sodium carbonate

3.0% max.

1.5% max.

Odor Slight Slight

Cu & Mn

5ppm max.

3ppm max.

Packaging Types


We can provide 50kg iron drum; 25kg bag or as per customers' requirement



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Mainly used as a discharging agent, color-discharging agent, reductant in printing a dyeing industry.


Also used as an activating agent for the production of styrene-butadiene rubber and synthetic resin.


Also used to decolorize and bleach some organic matters, for example: as a bleaching agent in synthetic

rubber, sugar-making, and food industry.


Substituted for Sodium Hydrosulfite in some special cases.


Storage/Transport Information

Stored in a dry, cool, and dark place. Protected from moisture and avoided exposure to direct sunshine.

Don’t let it be rained on. Be sure not to store it together with oxidant and acid, no presence of

acidic vapor in storage.

Company Profile

SFS Sodium Formaldehyde Sulphoxylate 6


Wuxi High Mountain Hi-tech Development Co., Ltd is a professional industrial company engaged in special

chemical production, technology research & development, and import & export. The company focuses on the

production, trade, and research & development of various chemical products.

Since its establishment, the company has been concentrating on constructing an international marketing

network and optimizing supply chain management, where we have established a long-term strategic

cooperation relationship with numerous large enterprises at home and abroad. Relying on our wide business

channels and professional experience, we are more skillfully providing products of stable but differentiated

quality, along with flexible, highly efficient & considerate service to satisfy our partner at more competitive pricing.


Efficiently treating our customers as partners with sincerity, specialization and satisfaction is our managerial

principle. Attributed to the backup of a dedicated technical team, filled with wide and profound knowledge

and practice in chemicals and world trade for 20 years, the company owns rich experience in product quality

control, technical solution, chemical logistics organization, packaging optimization, port operation, etc., which

accounts for its first-class cost control management and ensures to maintain the overwhelming competitive

advantage over others. In line with the principle of sharing the preferential cost and joint development, the

company has formed an interesting community for years with its customers at home and abroad. Sincerely

to build up a pleasant mutual trust, cooperative, win-win, and value-added sustainable partnership is what

we are achieving to grow together with you!


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