Methanedisulfonic acid dipotassium salt
- Product Name
- Methanedisulfonic acid dipotassium salt
- CAS No.
- 6291-65-2
- Chemical Name
- Methanedisulfonic acid dipotassium salt
- Synonyms
- POTASSIUM METHANEDISULFONATE;dipotassium methanedisulfonate;dipotassium methanedisulphonate;Methanedisulfonic acid Potassium salt;METHANEDISULFONIC ACID DIPOTASSIUM SALT;Methanedisulfonic acid,potassium salt (1:2);TIANFU CHEM-- Dipotassium methanedisulfonate;Methane Disulfonic Acid,Dipotassium Salt MDKA;Methanedisulfonic acid dipotassium salt >=99.0% (T)
- CBNumber
- CB7482720
- Molecular Formula
- CH5KO6S2
- Formula Weight
- 216.26
- MOL File
- 6291-65-2.mol
Methanedisulfonic acid dipotassium salt Property
- Density
- 1.622[at 20℃]
- Water Solubility
- 34.438g/L at 20℃
- LogP
- -1.83 at 20℃
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 94589
- Product name
- Methanedisulfonic acid dipotassium salt
- Purity
- ≥99.0% (T)
- Packaging
- 250g
- Price
- $297
- Updated
- 2023/06/20
- Product number
- 94589
- Product name
- Methanedisulfonic acid dipotassium salt
- Purity
- ≥99.0% (T)
- Packaging
- 50g
- Price
- $82.2
- Updated
- 2023/01/07
- Product number
- CD13008162
- Product name
- Potassiummethanedisulfonate
- Purity
- 97%
- Packaging
- 100g
- Price
- $298
- Updated
- 2021/12/16
Methanedisulfonic acid dipotassium salt Chemical Properties,Usage,Production
Uses
Methanedisulfonic acid dipotassium salt is widely used in electroplating process. As the main component of chromium plating additives, it can significantly improve the corrosion of the plating solution on the anode plate, resulting in a brighter surface, higher hardness of the coating, more microcracks and higher corrosion resistance.
Flammability and Explosibility
Not classified
Synthesis
Methanedisulfonic acid dipotassium salt is synthesised using 1,1-dibromomethane as a raw material by chemical reaction. The specific synthesis steps are as follows:
Raw Materials: CH2Br2: 140 g/0.8 mol K2SO3 (45% in water) 600 g/1.7 mol [(C4H9)4N]Br: 6 g KI: 0.8 g; A mixture of 600 g K2SO3-solution (45% in water), 6 g of [(C4H9)4N]Br and 0.8 g KI in 400 ml of water, was heated to 70° C. Within a period of 16 hours, 140 g of CH2Br2 were transferred under the surface of the reaction mixture. During the addition of CH2Br2, the pressure in the reactor was determined with 1007-1008 mbar. Afterwards the reaction mixture was heated up to 90° C. After a total reaction time of 24 h, K2[CH2(SO3)2] started to precipitate. After 72 hours at 90° C., complete conversion of CH2Br2 to [CH2(SO3)2]2- has been achieved. The reaction mixture was cooled down to 20° C. The precipitated K2[CH2(SO3)2] was isolated by suction filtration and washed three times with 100 ml of water. The product was dried 6 hours at 80° C. under atmospheric pressure. Yield: 175 g (86.7%) Composition: Assay: 99.7% (Titration) Br-: 111 ppm (Ion-chromatography) SO32-:<50 ppm (Ion-chromatography) SO42-: 54 ppm (Ion-chromatography); Purification by Recrystallization 175 g of K2[CH2(SO3)2] were suspended in 600 ml of water. The suspension was heated to about 100° C. At a pressure of about 40 mbar, 362 ml of water were evaporated out of the mixture. The remaining suspension was cooled down to 20° C. The precipitated K2[CH2(SO3)2] was isolated by suction filtration and dried 6 h at 80° C. under atmospheric pressure. Yield: 165.4 g (94.5%) Overall yield: 81.9% Composition: Assay: 99.8% (Titration) Br-: <10 ppm (potentiometric titration) SO32-: <50 ppm (Ion-chromatography) SO42-: <50 ppm (Ion-chromatography).
Methanedisulfonic acid dipotassium salt Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Methanedisulfonic acid dipotassium salt manufacturers
- Product
- Dipotassium methanedisulfonate 6291-65-2
- Price
- US $7.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 100KG
- Release date
- 2019-05-23