Henan, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workdays
Sample Available

Rongalite, Sodium Formaldehyde Sulfoxylate, White Nubby or Powdery Solid Rongalite manufacturer / supplier in China, offering White Lump Sodium Formaldehyde Sulfoxylate for Bleaching, Pentopan Pentosanase Enzyme for Livestock Chicken Feed and Baking, High Tinting Strength Synthetic Powder Iron Oxide Red for Plastic/Rubber/Ceramic and so on.

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Supplier Homepage Products Sulfide White Lump Sodium Formaldehyde Sulfoxylate for Bleaching

White Lump Sodium Formaldehyde Sulfoxylate for Bleaching

Min. Order / Reference FOB Price
20 Tons US $1,960/ Ton
Port: Shanghai, China
Production Capacity: 10000ton/Year
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram
CAS No.: 149-44-0/6035-47-8
Formula: CH7nao5s
EINECS: 205-739-4
Appearance: Lump
Classification: Sodium Formaldehyde Sulfoxylate
Certification: CIQ, ISO, SGS MSDS Coa

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Basic Info.

Model NO.
Sodium Formaldehyde Sulfoxylate
Sodium Formaldehyde Sulfoxylate
Grade Standard
Industrial Grade
Sodium Formaldehyde Sulfoxylate
Other Name
White Nubby or Powdery Solid.
Main Market
50kg Drum
Einecs No.
Plastic, Textile, Rubber, Food Industry
Transport Package
50kg Drum
NaHSO2. CH2O. 2H2O 98%min
HS Code

sodium formaldehyde sulfoxylate lump

1, nature:
Chemical name: sodium bisulfate formaldehyde
Molecular formula: NaHSO2 · CH2O · 2H2O
Molecular weight: 154.12
Weight: 1.8
Melting point: 64 ° C
Melting heat: 54.84KJ / mol (13.2KCal / mol)
Moisture point: 60% relative humidity
Stability point: less than 50 ºC
Solubility: 20 ºC, 1 carved white block, carved white powder, carved white particles need 1.2 copies of water dissolved (45%)
70 ºC, a carved white block, carved white powder, carved white tablets need 1 part of water dissolved (50%)
Physical properties: carved white block, carved white powder, carved white particles with a strong reducing salt, white condensed lumps or powder, granules, was alkaline protection.
Chemical properties:
A. Carved white block (powder, grain) easy to damp exotherm, 80 ºC began to decompose, the release of H2S, need to dry low temperature preservation.
6NaHSO2 · CH2O + 3H2O - → 4NaHSO3 + 2HCOONa + 2H2S + HCOOH + 3CH3OH
B. When the temperature rose to 110 ºC, carved white block (powder, grain) decomposition, the molecules of formaldehyde split release new [H], the strongest reduction force.
NaHSO2 · CH2O - → NaHSO2 + CH2O
NaHSO2 + H2O - → NaHSO2 + 2 [H]
C. Carved white block (powder, grain) is divided into oxidants, such as with the I2.
NaHSO2 · CH2O + 2H2O + 2I2- → NaHSO4 + 4HI + CH2O
D. Carved white block (powder, grain) should be in alkaline medium PH> 8, acid (acid limit PH> 3) can make carved white block decomposition of hydrogen sulfide.
SolutionClear or shight turbidSlight turbidPass
 No blackNo blackPass
AppearanceWhite powderWhite powderPass
Cu content///
Mn content///
Solubility in benzeneInsolubleInsolublePass
ConclusionFirst class product

Quality standards, implementation standards HG 2281-1992 
Item Index
Sodium bisulfate formaldehyde content% ≥  98.00
 Dissolved state  dissolved in water was clear or slightly cloudy
 Sulfide does not show black
 Odor Odorless or little leek flavor
Usageis mainly used in the printing and dyeing industry for the discharge agent, coloring agent, reducing agent and used as styrene-butadiene rubber and synthetic resin activator

3, Packing:
With lined with plastic film bags, sealed tight iron drum, net weight 50 kg per barrel. Carved white powder and another 25 kg bag.

4, use:
Mainly used in the printing and dyeing industry for the discharge agent, coloring agent, reducing agent and used as styrene-butadiene rubber and synthetic resin activator, but also for some organic decolorization and bleaching (such as: synthetic rubber, sugar, food industry bleaching Agent), under certain conditions can replace the use of insurance powder. Can not be used for imported food bleaching.

5, details:
White Lump Sodium Formaldehyde Sulfoxylate for Bleaching
White Lump Sodium Formaldehyde Sulfoxylate for Bleaching
White Lump Sodium Formaldehyde Sulfoxylate for Bleaching
White Lump Sodium Formaldehyde Sulfoxylate for Bleaching
White Lump Sodium Formaldehyde Sulfoxylate for Bleaching
White Lump Sodium Formaldehyde Sulfoxylate for Bleaching

6, transport, storage Note:
Carved white pieces of finished barrels should be stored in a dry and cool place to prevent sunlight exposure, rain, not with oxidants and acids mixed together, the storage room does not contain acid vapor, storage period of one year.


7,Our Services: 

Why should you choose us:

1) More than ten years experience in chemicals industry;
2) Quick and positive reply after receiving your inquiry;
3) Free sample before shipment;
4) Quality control before and during shipment;
5) Packing according to your requirement;
6) Prompt shipment with right shipping line;
7) High quality with competitive price.

8,Company Information:

ZHENGZHOU QIANGJIN SCIENCE AND TECHNOLOGY TRADING CO.,LTD, built up to offer chemicals and raw materials from China in more than 6 years ago, along with the growth of company size and capacity, we begin to explore other filed, such as Agriculture machinery , Farm machine , Food machine , Wood machine , Textile machine. Through acting as the sole representative agents and incorporating small factory, we have gained lot from widen the business line and diversify the business operation.

Our company is located in CHENZHAI VILLAGE, JINSHUI DISTRICT, ZHENGZHOU CITY, HENAN province,which has an independent storage, R&D and sales network and an professional after-sales service team.We not only offer the products from our own factories, but also act as the exclusive representative of several local manufacturers, so we can offer a wide product range.
Based on the advanced production technology and stable product quality, we enjoy high reputation in domestic and international markets. We sincerely welcome everyone to come to consult, negotiate and cooperate based on mutual benefits.
We have been providing qualified products in the Americas, Europe and Asia, many international companies. We believe that the key factor in the overall development is the quality control system. Our quality policy is to provide qualified, reliable and satisfactory products with advanced facilities, highly qualified staff, modern management.We have the strict quality systems from the purchase of raw materials,the product line to the final products,which can ensure the stability of the final products quality to the end-user,which help us win the good reputation in our old customers.Welcome the new and old customers to visit and conduct any time.
At the same time, our pledge is:
1.qualified products and materials,which can make perfect performance in your product line and save your raw materials and cost.
2. Reasonable and competitive price,which can save your cost and share more market.
3.Excellent service,which can help you save the materials cost and maximiz your output.
4.Reliable and timely transport,which can help you to avoid the the diversity and complexity of the international market.
5.With global professional suppliers and manufacturers a stable business relationships.
Based on the tenet of quality first, full-service, honesty and win-win situation, we will survive through high-quality, development through innovation, effectiveness and credibility of the actual focus, and further expand our domestic and international markets. We look forward to cooperation with friends all over the world to create a brilliant future.
Welcome all clients from both home and abroad to come and hold business talk on the basis of equality and mutual benefit. We help you to minimize your costs,and maximize your benefits!Any of your enquiries and orders will be given our prompt reply and best attention.


1.Are you manufacturer or Trading company?

We are original manufacturer for Musk ketone.We also offer Musk ambrette,Musk xylene and vanillin for perfume or frangence use.

2.Do you offer free sample?

Yes we offer not over then 100g sample for free.However,the postage should bear by the customer.

3.What's your MOQ?Can we order small quantity?

We don't have MOQ and we welcome any quantity of order!

4.Which countries do you exported to?

We have long-term customers from Sudan,Dubai,SA,Indian and Pakistan.Our products enjoyed good reputation and we have working with each other for years.

5.Any inspection?

We welcome any international third-party inspection such as BV or SGS.

6.Can we visit your factory?

Yes of course every customers is welcome to visit us anytime!You can take train or plane to Zhengzhou city and we will pick you up at the station or airport!

7.Can we be your agent?

We can negotiate if your quantity is big and regular.We are also always looking for a partner all over the world

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