<Table> Magnesium hydroxide <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Names </Th> </Tr> <Tr> <Td_colspan="2"> IUPAC name Magnesium hydroxide </Td> </Tr> <Tr> <Td_colspan="2"> Other names Milk of magnesia </Td> </Tr> <Tr> <Th_colspan="2"> Identifiers </Th> </Tr> <Tr> <Td> CAS Number </Td> <Td> <Ul> <Li> 1309 - 42 - 8 </Li> </Ul> </Td> </Tr> <Tr> <Td> 3D model (JSmol) </Td> <Td> <Ul> <Li> Interactive image </Li> </Ul> </Td> </Tr> <Tr> <Td> ChEBI </Td> <Td> <Ul> <Li> CHEBI: 6637 </Li> </Ul> </Td> </Tr> <Tr> <Td> ChEMBL </Td> <Td> <Ul> <Li> ChEMBL1200718 </Li> </Ul> </Td> </Tr> <Tr> <Td> ChemSpider </Td> <Td> <Ul> <Li> 14107 </Li> </Ul> </Td> </Tr> <Tr> <Td> ECHA InfoCard </Td> <Td> 100.013. 792 </Td> </Tr> <Tr> <Td> EC Number </Td> <Td> 215 - 170 - 3 </Td> </Tr> <Tr> <Td> E number </Td> <Td> E528 (acidity regulators, ...) </Td> </Tr> <Tr> <Td> Gmelin Reference </Td> <Td> 485572 </Td> </Tr> <Tr> <Td> PubChem CID </Td> <Td> <Ul> <Li> 14791 </Li> </Ul> </Td> </Tr> <Tr> <Td> RTECS number </Td> <Td> OM3570000 </Td> </Tr> <Tr> <Td> UNII </Td> <Td> <Ul> <Li> NBZ3QY004S </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> InChI (show) <Ul> <Li> InChI = 1S / Mg. 2H2O / h; 2 * 1H2 / q + 2;; / p - 2 Key: VTHJTEIRLNZDEV - UHFFFAOYSA - L </Li> <Li> InChI = 1 / Mg. 2H2O / h; 2 * 1H2 / q + 2;; / p - 2 Key: VTHJTEIRLNZDEV - NUQVWONBAW </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> SMILES (show) <Ul> <Li> (Mg + 2). (OH -). (OH -) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Properties </Th> </Tr> <Tr> <Td> Chemical formula </Td> <Td> Mg (OH) </Td> </Tr> <Tr> <Td> Molar mass </Td> <Td> 58.3197 g / mol </Td> </Tr> <Tr> <Td> Appearance </Td> <Td> White solid </Td> </Tr> <Tr> <Td> Odor </Td> <Td> Odorless </Td> </Tr> <Tr> <Td> Density </Td> <Td> 2.3446 g / cm </Td> </Tr> <Tr> <Td> Melting point </Td> <Td> 350 ° C (662 ° F; 623 K) decomposes </Td> </Tr> <Tr> <Td> Solubility in water </Td> <Td> <Ul> <Li> 0.00064 g / 100 mL (25 ° C) </Li> <Li> 0.004 g / 100 mL (100 ° C) </Li> </Ul> </Td> </Tr> <Tr> <Td> Solubility product (K) </Td> <Td> 5.61 × 10 </Td> </Tr> <Tr> <Td> Magnetic susceptibility (χ) </Td> <Td> − 22.1 10 cm / mol </Td> </Tr> <Tr> <Td> Refractive index (n) </Td> <Td> 1.559 </Td> </Tr> <Tr> <Th_colspan="2"> Structure </Th> </Tr> <Tr> <Td> Crystal structure </Td> <Td> Hexagonal, hP3 </Td> </Tr> <Tr> <Td> Space group </Td> <Td> P3m1 No. 164 </Td> </Tr> <Tr> <Td> Lattice constant </Td> <Td> a = 0.312 nm, c = 0.473 nm </Td> </Tr> <Tr> <Th_colspan="2"> Thermochemistry </Th> </Tr> <Tr> <Td> Heat capacity (C) </Td> <Td> 77.03 J / mol K </Td> </Tr> <Tr> <Td> Std molar entropy (S) </Td> <Td> 64 J mol K </Td> </Tr> <Tr> <Td> Std enthalpy of formation (Δ H) </Td> <Td> − 924.7 kJ mol </Td> </Tr> <Tr> <Td> Gibbs free energy (Δ G _̊) </Td> <Td> − 833.7 kJ / mol </Td> </Tr> <Tr> <Th_colspan="2"> Pharmacology </Th> </Tr> <Tr> <Td> ATC code </Td> <Td> A02AA04 (WHO) G04BX01 (WHO) </Td> </Tr> <Tr> <Th_colspan="2"> Hazards </Th> </Tr> <Tr> <Td> Safety data sheet </Td> <Td> External MSDS </Td> </Tr> <Tr> <Td> NFPA 704 </Td> <Td> 0 0 </Td> </Tr> <Tr> <Td> Flash point </Td> <Td> Non-flammable </Td> </Tr> <Tr> <Td_colspan="2"> Lethal dose or concentration (LD, LC): </Td> </Tr> <Tr> <Td> LD (median dose) </Td> <Td> 8500 mg / kg (rat, oral) </Td> </Tr> <Tr> <Th_colspan="2"> Related compounds </Th> </Tr> <Tr> <Td> Other anions </Td> <Td> Magnesium oxide </Td> </Tr> <Tr> <Td> Other cations </Td> <Td> <Ul> <Li> Beryllium hydroxide </Li> <Li> Calcium hydroxide </Li> <Li> Strontium hydroxide </Li> <Li> Barium hydroxide </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Except where otherwise noted, data are given for materials in their standard state (at 25 ° C (77 ° F), 100 kPa). </Td> </Tr> <Tr> <Td_colspan="2"> N verify (what is?) </Td> </Tr> <Tr> <Td_colspan="2"> Infobox references </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Names </Th> </Tr>

Milk of magnesia which is magnesium hydroxide is used to cure stomach acidity