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Encyclopedia > Magnesium hydroxide
Properties

General Wikipedia does not have an article with this exact name. ... A bottle of Phillips Milk of Magnesia in the 1900s. ...

Name Magnesium hydroxide
Chemical formula Mg(OH)2
Molar mass 58.33 g/mol
Appearance White solid

Physical This article does not cite its references or sources. ... General Name, Symbol, Number magnesium, Mg, 12 Chemical series alkaline earth metals Group, Period, Block 2, 3, s Appearance silvery white Standard atomic weight 24. ... Hydroxide is a polyatomic ion consisting of oxygen and hydrogen: OH− It has a charge of −1. ... Molar mass is the mass of one mole of a chemical element or chemical compound. ... Color is an important part of the visual arts. ...

Melting point Decomposes at 623 K (350 °C)
pKb -0.85
Density 2.4 g/cm³
Crystal structure ?
Solubility 0.0012 g in 100 g water

Thermochemistry The melting point of a crystalline solid is the temperature at which it changes state from solid to liquid. ... The kelvin (symbol: K) is a unit increment of temperature and is one of the seven SI base units. ... Celsius is, or relates to, the Celsius temperature scale (previously known as the centigrade scale). ... The acid dissociation constant (Ka), also known as the acidity constant or the acid-ionization constant, is a specific equilibrium constant for the reaction of an acid with its conjugate base in aqueous solution [1]. // When an acid dissolves in water, it partly dissociates forming hydronium ions and its conjugate... In physics, density is mass m per unit volume V. For the common case of a homogeneous substance, it is expressed as: where, in SI units: ρ (rho) is the density of the substance, measured in kg·m-3 m is the mass of the substance, measured in kg V is... Enargite crystals In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ... Solubility refers to the ability for a given substance, the solute, to dissolve in a solvent. ... BIC pen cap, about 1 gram. ...

ΔfH0gas -561 kJ/mol
ΔfH0solid -925 kJ/mol
S0solid 63 J/(mol·K)

Safety The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 1 atmosphere... The joule (IPA pronunciation: or ) (symbol: J) is the SI unit of energy. ... The mole (symbol: mol) is the SI base unit that measures an amount of substance. ... The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 1 atmosphere... In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... The joule (IPA pronunciation: or ) (symbol: J) is the SI unit of energy. ... The mole (symbol: mol) is the SI base unit that measures an amount of substance. ... The kelvin (symbol: K) is a unit increment of temperature and is one of the seven SI base units. ...

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. Look up si, Si, SI in Wiktionary, the free dictionary. ... Temperature and air pressure can vary from one place to another on the Earth, and can also vary in the same place with time. ...


Disclaimer and references This page refers to the data given in chemical compound property tables. ...

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. A bottle of Phillips Milk of Magnesia in the 1900s. ... A bottle of antacid tablets An antacid is any substance, generally a base, which counteracts stomach acidity. ... Laxatives are foods, compounds, or drugs taken to induce bowel movements, most often taken to treat constipation. ... Brucite is the mineral form of magnesium hydroxide, with the chemical formula Mg(OH)2. ... Folic acid and folate (the anion form) are forms of the water-soluble Vitamin B9. ... General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Standard atomic weight 55. ... Types 5-7 on the Bristol Stool Chart are often associated with diarrhea Diarrhea (in American English) or diarrhoea (in British English) is a generally unpleasant condition in which the sufferer has frequent watery, loose bowel movements (from the Greek word διάρροια; literally meaning through-flowing). Acute infectious diarrhea is a... General Name, Symbol, Number potassium, K, 19 Chemical series alkali metals Group, Period, Block 1, 4, s Appearance silvery white Standard atomic weight 39. ... General Name, Symbol, Number potassium, K, 19 Chemical series alkali metals Group, Period, Block 1, 4, s Appearance silvery white Standard atomic weight 39. ...


It has very low solubility in water, and has a Ksp value of 1.5x10-11. Solubility refers to the ability for a given substance, the solute, to dissolve in a solvent. ...


It does not completely dissociate and therefore is a weak base.


Preparation

From a Magnesium salt: A magnified crystal of a salt (halite/sodium chloride) Salt covering the floor of Bad Water in Death Valley, CA, the lowest point in the US. A salt, in chemistry, is defined as the product formed from the neutralisation reaction of acids and bases. ...

Mg_3N_{2(s)} + 6H_2O_{(l)} rightarrow 2NH_{3(g)} + 3Mg(OH)_{2(aq)}
In words:
Solid Magnesium nitride + Water = Ammonia + Aqueous Magnesium Hydroxide

From a Magnesium base: Magnesium nitride Chemical Formula: Mg3N2 Molecular Weight: 100. ... Ammonia is a compound with the formula NH3. ... Drinking water This article focuses on water as we experience it every day. ... Acids and bases: Acid-base reaction pH Self-ionization of water Buffer solutions Systematic naming Acid-base extraction Acidity function Proton affinity Acids: Strong acids Weak acids Superacids Lewis acids Mineral acids Organic acids Bases: Strong bases Weak bases Superbases Lewis bases Organic bases edit In chemistry, a base is...

MgO_{(s)} + H_2O_{(l)} rightarrow Mg(OH)_{2(aq)}
In words:
Solid Magnesium oxide + Water = Aqueous Magnesium Hydroxide

From pure Magnesium metal: Magnesium oxide Magnesium oxide, or magnesia, is a white solid mineral that occurs naturally as periclase and is a source of magnesium. ... Drinking water This article focuses on water as we experience it every day. ... Hot metal work from a blacksmith In chemistry, a metal (Greek: Metallon) is an element that readily loses electrons to form positive ions (cations) and has metallic bonds between metal atoms. ...

Mg_{(s)} + 2H_2O_{(g)} rightarrow Mg(OH)_{2(aq)} + H_{2(g)}
In Words:
Solid Magnesium + Water = Aqueous Magnesium Hydroxide + Hydrogen Gas

General Name, Symbol, Number magnesium, Mg, 12 Chemical series alkaline earth metals Group, Period, Block 2, 3, s Appearance silvery white Standard atomic weight 24. ... Drinking water This article focuses on water as we experience it every day. ... General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ...

Uses

Magnesium hydroxide is used as an antacid to neutralize stomach acid. In industry, it is used as a non hazardous alkali to neutralise acidic wastewaters. A bottle of antacid tablets An antacid is any substance, generally a base, which counteracts stomach acidity. ... ACID (Atomicity, Consistency, Isolation, Durability) is a set of properties that guarantee that database transactions are processed reliably. ...


External links


  Results from FactBites:
 
Magnesium Hydroxide, Milk of Magnesia, MOM (535 words)
Magnesium hydroxide is used as an antacid for short-term relief of stomach upset and as a laxative for short-term treatment of constipation.
Magnesium hydroxide is available in nonprescription products alone and in combination with other nonprescription ingredients to relieve stomach upset.
Antacids, including magnesium hydroxide, may reduce the absorption of dietary iron.
Complete Magnesium Hydroxide information from Drugs.com (984 words)
Magnesium Hydroxide usually causes a bowel movement within 30 minutes to 6 hours of using it.
Magnesium Hydroxide is not recommended for use in CHILDREN younger than 12 years of age.
Magnesium Hydroxide is to be used only by the patient for whom it is prescribed.
  More results at FactBites »

 

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