Science Fair Project Encyclopedia
Magnesium hydroxide
|
General |
|
|---|---|
| Name | Magnesium hydroxide |
| Chemical formula | Mg(OH)2 |
| Appearance | White solid |
|
Physical |
|
| Formula weight | 58.3 amu |
| Melting point | Decomposes at 623 K (350 °C) |
| Density | 2.4 ×103 kg/m3 |
| Crystal structure | ? |
| Solubility | 0.0012 g in 100g water |
|
Thermochemistry |
|
| ΔfH0gas | -561 kJ/mol |
| ΔfH0solid | -925 kJ/mol |
| S0solid | 63 J/mol·K |
|
Safety | |
| Ingestion | Safe in small amounts, but large amounts can be dangerous. |
| Inhalation | May cause irritation. |
| Skin | May cause irritation. |
| Eyes | May cause irritation. |
| More info | Hazardous Chemical Database |
|
SI units were used where possible. Unless otherwise stated, standard conditions were used. | |
Magnesium hydroxide, Mg(OH)2, otherwise known as milk of magnesia, is commonly used as an antacid or a laxative. The mineral form of magnesium hydroxide is known as brucite. Magnesium hydroxide interferes with the absorption of folic acid and iron. The diarrhea caused by magnesium hydroxide carries away much of the body's supply of potassium, and failure to take extra potassium will lead to muscle cramps.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details