magnesium methanolate
Magnesium methoxide
CAS: 109-88-6
Molecular Formula: C2H6MgO2
magnesium methanolate - Names and Identifiers
| Name | Magnesium methoxide |
| Synonyms | Dimethoxymagnesium Magnesium methoxide magnesium methanolate Magnesium bismethoxide magnesium methoxide solution |
| CAS | 109-88-6 |
| EINECS | 203-715-8 |
| InChI | InChI=1/2CH3O.Mn/c2*1-2;/h2*1H3;/q2*-1;+2 |
magnesium methanolate - Physico-chemical Properties
| Molecular Formula | C2H6MgO2 |
| Molar Mass | 86.37 |
| Density | 0.816g/mLat 25°C |
| Boling Point | 48.1°C at 760 mmHg |
| Flash Point | 46°F |
| Water Solubility | Decomposes in water. |
| Vapor Presure | 17kPa at 25℃ |
| Appearance | Liquid |
| Specific Gravity | 0.815 |
| Exposure Limit | ACGIH: TWA 200 ppm; STEL 250 ppm (Skin)OSHA: TWA 200 ppm(260 mg/m3)NIOSH: IDLH 6000 ppm; TWA 200 ppm(260 mg/m3); STEL 250 ppm(325 mg/m3) |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.3381 |
magnesium methanolate - Risk and Safety
| Risk Codes | R11 - Highly Flammable R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R39/23/24/25 - R36/38 - Irritating to eyes and skin. |
| Safety Description | S16 - Keep away from sources of ignition. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 3274 3/PG 2 |
| WGK Germany | 1 |
| TSCA | Yes |
| Hazard Class | 3 |
| Packing Group | II |
magnesium methanolate - Reference Information
| LogP | 0.77 at 20℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| de-acid agent | magnesium methoxide is a de-acid agent. The deacidification effect is good, and the disadvantage is that it is not suitable for some easily damaged inks, and it is easy to form deposits prematurely on wet paper. Organic solution deacidification method: magnesium methoxide is soluble in organic solvent, and its alkalinity can not only neutralize the acid in the paper, but also decompose the magnesium methoxide remaining in the paper into magnesium hydroxide under the action of water vapor. Magnesium hydroxide with the role of air in the formation of magnesium carbonate, so that the paper has the role of acid buffer. But in the process of practice, it is found that methanol has some disadvantages, such as the dissolution of some handwriting color handwriting, ballpoint pen handwriting, too large alkaline and so on. In order to improve the solubility of the solvent to magnesium methoxide without affecting the writing, the purpose of mixing magnesium methoxide with an inert solvent with low dissolving power can be achieved by the "wetol" method: it is the use of magnesium methoxide-methanol, the mixed solution of Freon was used as a deacidification agent. |
Last Update：2024-04-10 22:29:15
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