sodium hydroxymethanesulfinate dihydrate
Sodium formaldehydesulfoxylate dihydrate
CAS: 6035-47-8
Molecular Formula: CH3NaO3S·2H2O
sodium hydroxymethanesulfinate dihydrate - Names and Identifiers
| Name | Sodium formaldehydesulfoxylate dihydrate |
| Synonyms | Rongalite Sodium hydroxymethanesulfinate Sodium formaldehyde-sulfoxylate Formaldehyde sodium sulfoxylate Sodium formaldehyde sulphoxylate sodium hydroxymethanesulfinate dihydrate Sodium formaldehydesulfoxylate dihydrate Hydroxymethanesulfinic acid monosodium salt dihydrate |
| CAS | 6035-47-8 |
| EINECS | 611-965-8 |
| InChI | InChI=1/CH4O3S.Na.2H2O/c2-1-5(3)4;;;/h2H,1H2,(H,3,4);;2*1H2/q;+1;;/p-1 |
sodium hydroxymethanesulfinate dihydrate - Physico-chemical Properties
| Molecular Formula | CH3NaO3S·2H2O |
| Molar Mass | 154.12 |
| Density | 1.8 g/cm3 (20℃) |
| Melting Point | 63-64℃ |
| Boling Point | 446.4°C at 760 mmHg |
| Flash Point | 223.8°C |
| Vapor Presure | 7.6E-10mmHg at 25°C |
| Appearance | White crystal |
| Storage Condition | Room Temprature |
| MDL | MFCD00150598 |
| Physical and Chemical Properties | The chemical product is white crystal. Soluble in water. Insoluble in anhydrous ethanol, ether, benzene. It has strong reducibility at high temperature. It has fading performance. Decompose at high temperature to produce formaldehyde, hydrogen sulfide and other toxic gases. When it encounters dilute acid, it decomposes, and its solution is neutral. Anhydrous melting point 63~64 ℃. The surface density is 1.80~1.85g/cm3. |
| Use | This product is used in the printing and dyeing industry as a white pulling agent, reducing agent, bleaching agent and the production of indigo dye, vat dye. It can also be used in the polymerization of synthetic rubber, sugar and ethylene compounds. |
sodium hydroxymethanesulfinate dihydrate - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R31 - Contact with acids liberates toxic gas R68 - Possible risk of irreversible effects |
| Safety Description | S24/25 - Avoid contact with skin and eyes. |
sodium hydroxymethanesulfinate dihydrate - Upstream Downstream Industry
| Raw Materials | ZINC HYDROSULFITE |
| Downstream Products | microdispersoid acrylate resin filling emulsion Neoarsphenamine |
sodium hydroxymethanesulfinate dihydrate - safety
Open Data Verified Data
Rat oral LD50>2000mg/kg; The oral LD50 of mice is 4000mg/kg. The finished bucket of carved white blocks should be stored in a dry and cool place to prevent exposure to sunlight and rain. It should not be mixed with oxidants and acids, and the storage room should not contain acidic vapors.
Last Update：2023-10-25 10:23:53
sodium hydroxymethanesulfinate dihydrate - Preparation method
Open Data Verified Data
1. Add 286kg of zinc powder and 500kg of water to the pulping tank, form a slurry, and then add it to a tubular reactor. Circularly absorb about 550kg of SO2 to prepare zinc bisulfite (reaction temperature maintained at 40-45 ℃, endpoint pH value of 3-3.5).
2. Add 698kg of 40% formaldehyde to the reaction kettle, stir and add the aforementioned zinc bisulfite aqueous solution dropwise, and gradually raise the temperature. When the temperature rises to 95-100 ℃, add a total of 257kg of zinc powder in batches, and react under insulation for several hours. The end point is when the content of the unreacted substance is less than 1%. Allow the sediment to settle and transfer it to the displacement kettle. Wash with clean water and add 755kg of 42% sodium hydroxide solution under stirring. React at 65 ℃ until the free alkali content reaches 0.3%~0.5%. Press and filter the reactants to remove impurities, clarify the filtrate for 48 hours, and then perform vacuum concentration. After cooling and crystallization, the finished product is obtained by crushing.
Last Update：2024-01-02 23:10:35
Supplier List
Spot supply
Product Name: Sodium formaldehydesulfoxylate dihydrate Request for quotationCAS: 6035-47-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Sodium formaldehydesulfoxylate dihydrate Request for quotationCAS: 6035-47-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: Sodium formaldehydesulfoxylate dihydrate Request for quotation
CAS: 6035-47-8
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
CAS: 6035-47-8
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Product Name: Sodium formaldehydesulfoxylate dihydrate Request for quotation
CAS: 6035-47-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 6035-47-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Product Name: Sodium formaldehydesulfoxylate Visit Supplier Webpage Request for quotation
CAS: 6035-47-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 6035-47-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
Spot supply
Product Name: Sodium formaldehydesulfoxylate dihydrate Request for quotationCAS: 6035-47-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Sodium formaldehydesulfoxylate dihydrate Request for quotationCAS: 6035-47-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: Sodium formaldehydesulfoxylate dihydrate Request for quotation
CAS: 6035-47-8
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
CAS: 6035-47-8
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Product Name: Sodium formaldehydesulfoxylate dihydrate Request for quotation
CAS: 6035-47-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 6035-47-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Product Name: Sodium formaldehydesulfoxylate Visit Supplier Webpage Request for quotation
CAS: 6035-47-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 6035-47-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History
Raw Materials for sodium hydroxymethanesulfinate dihydrate
Downstream Products for sodium hydroxymethanesulfinate dihydrate