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Cas Database |
| Name |
Methanedisulphonic acid |
EINECS | 207-966-4 |
| CAS No. | 503-40-2 | Density | 2.145 g/cm3 |
| PSA | 125.50000 | LogP | 0.88110 |
| Solubility | 2458g/L(25 oC) | Melting Point |
107-109oC |
| Formula | CH4O6S2 | Boiling Point | 263℃ at 101.3kPa |
| Molecular Weight | 176.171 | Flash Point | N/A |
| Transport Information | N/A | Appearance | white powder |
| Safety | Risk Codes | N/A | |
| Molecular Structure |
|
Hazard Symbols | N/A |
| Synonyms |
Methionicacid;Methanedisulfonic acid; |
Article Data | 60 |
Methanedisulphonic acid Synthetic route
| Conditions | Yield |
|---|---|
| Stage #1: dichloromethane With calcium sulfite In water at 180℃; for 10h; Autoclave; Stage #2: calcium methanedisulfonate With sulfuric acid In water at 80℃; for 2h; Reagent/catalyst; Temperature; | 89% |
| Conditions | Yield |
|---|---|
| Stage #1: 1,2-dibromomethane With potassium sulfite; tetrabutylammomium bromide; potassium iodide In water at 80 - 90℃; for 88h; Stage #2: With hydrogenchloride In water at 90℃; for 2h; Stage #3: With barium(II) chloride In water at 20 - 90℃; for 2h; | 84.7% |
- 18555-26-5
methylene trithiocarbonate
- 503-40-2
methanedisulfonic acid
| Conditions | Yield |
|---|---|
| With nitric acid |
| Conditions | Yield |
|---|---|
| With sulfuric acid |
| Conditions | Yield |
|---|---|
| With sulfuric acid; sulfur trioxide bis zum Entweichen von schwefliger Saeure; | |
| With sulfuric acid; sulfur trioxide at 210℃; |
- 849585-22-4
LACTIC ACID
- 503-40-2
methanedisulfonic acid
| Conditions | Yield |
|---|---|
| With sulfuric acid; sulfur trioxide bis zur Entwicklung von schwefliger Saeure, dann Saettigen mit BaCO3; | |
| With sulfuric acid; sulfur trioxide |
| Conditions | Yield |
|---|---|
| With sulfur trioxide |
| Conditions | Yield |
|---|---|
| With sulfur trioxide at 140℃; | |
| With aminosulfonic acid at 25 - 150℃; for 3h; Reagent/catalyst; Temperature; |
| Conditions | Yield |
|---|---|
| With sulfur trioxide |
| Conditions | Yield |
|---|---|
| With potassium sulfite at 150℃; |
Methanedisulphonic acid Chemical Properties
Molecular Structure of Methanedisulfonic acid (CAS NO.503-40-2):
.png)
Molecular Formula: CH4O6S2
Molecular Weight: 176.1689
IUPAC Name: Methanedisulfonic acid
Synonyms of Methanedisulfonic acid (CAS NO.503-40-2): Methionic acid ; EINECS 207-966-4 ; Methanedisulphonic acid
CAS NO: 503-40-2
Index of Refraction: 1.581
Molar Refractivity: 27.37 cm3
Molar Volume: 82.1 cm3
Surface Tension: 119.9 dyne/cm
Density: 2.145 g/cm3
Methanedisulphonic acid Uses
Methanedisulfonic acid (CAS NO.503-40-2) is used as the main additive in the hard chromium plating process.
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