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Magnesium hydride
Cas No: 7693-27-8
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
HIGH QUALITY Magnesium hydride CAS 7693-27-8
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USD $ 1300.0-1500.0 / Kilogram 1 Kilogram 50 Kilogram/Month Kono Chem Co.,Ltd Contact Supplier
HIGH QUALITY Magnesium hydride CAS 7693-27-8
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USD $ 1.0-3.0 / Metric Ton 1 Metric Ton 10 Metric Ton/Day Hebei yanxi chemical co.,LTD. Contact Supplier
Magnesium hydride
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Magnesium hydride(MgH2)
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Magnesium hydride CAS:7693-27-8 from Fandachem
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Magnesium hydride(MgH2) CAS 7693-27-8
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Competitive Price / Magnesium hydride
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Magnesium hydride
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High quality Magnesium hydride
Cas No: 7693-27-8
USD $ 100.0-100.0 / Kilogram 1 Kilogram 10000 Kilogram/Day Metric Ton/Day Zibo Hangyu Import&Export Co., Ltd Contact Supplier

7693-27-8 Usage


A strong reducing agent. Pyrophoric: the powder or dust may ignite spontaneously in air, or in the presence of moisture. Contact with water or steam forms magnesium hydroxide, flammable hydrogen gas, and enough heat to ignite the hydrogen. Violent reaction with oxidizers, alcohols, halogens, chlorinated solvents. Incompatible with strong acids, acid chlorides, alcohols, amines and aldehydes. Store under nitrogen. Decomposes @ 280C in high vacuum

Air & Water Reactions

Highly flammable. Pyrophoric, ignites spontaneously in air and forms magnesium oxide and water [Merck 11th ed. 1989]. Reacts with water to form caustic solution of magnesium hydroxide and hydrogen gas (H2) and heat sufficient to ignite the evolved hydrogen [Merck 11th ed. 1989].

Reactivity Profile

Hydrides, such as Magnesium hydride, are reducing agents and react rapidly and dangerously with oxygen and with other oxidizing agents, even weak ones. Thus, they are likely to ignite on contact with alcohols. Hydrides are incompatible with acids, alcohols, amines, and aldehydes.


UN2010 Magnesium hydride, Hazard Class: 4.3; Labels: 4.3-Dangerous when wet material.

Health Hazard

Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.

Potential Exposure

Used in hydrogen production and in production of magnesium alcoholates.

Chemical Properties

Light grey powder

General Description

Magnesium hydride is a white crystalline solid. Magnesium hydride reacts violently with water and may ignite upon contact with air. Magnesium hydride is used to make other chemicals.

Chemical Properties

Magnesium hydride is a coarse, gray crystalline solid.

Fire Hazard

Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.


MgH2 contains 7.66% by weight of hydrogen and has been studied as a potential hydrogen-storage medium. It was discovered in 1912, during the pyrolysis of ethyl magnesium iodide (a Grignard reagent), which produced small amount of MgH2. In 1951, preparation from the elements was first reported involving direct hydrogenation of Mg metal at high pressure and temperature (200 atmospheres, 500°C)with magnesium iodide as a catalyst: Mg+H2→MgH2 Lower temperature production from Mg and H2 using nano-crystalline Mg produced in ball mills has been investigated. Other preparations include: 1. The hydrogenation of magnesium anthracene under mild conditions: Mg(anthracene)+H2→MgH2+C14H10 2. The reaction of diethyl magnesium with LiAlH4 3. An adduct of complexed MgH2, e.g. MgH2·THF by the reaction of phenylsilane (C6H8Si) and dibutyl magnesium in ether or hydrocarbon solvents in the presence of THF (C4H8O) using TMEDA (Tetramethylethylenediamine=(CH3)2NCH2CH2N (CH3)2) as a ligand.



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017


1.1 GHS Product identifier

Product name Magnesium hydride

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

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