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683043

Sigma-Aldrich

Magnesium hydride

hydrogen-storage grade

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About This Item

Linear Formula:
MgH2
CAS Number:
7693-27-8
Molecular Weight:
26.32
EC Number:
231-705-3
MDL number:
MFCD00011101
UNSPSC Code:
26111700
PubChem Substance ID:
24885745

grade

hydrogen-storage grade

reaction suitability

reagent type: reductant

density

1.45 g/mL at 25 °C (lit.)

SMILES string

[Mg]

InChI

1S/Mg.2H

InChI key

RSHAOIXHUHAZPM-UHFFFAOYSA-N

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General description

Atomic number of base material: 12

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H260,H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Water-react 1

Storage Class Code

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 3: Spontaneously combustible substances and water- reactive materials
Metal hydrides
Hazardous rank I
1st spontaneously combustible materials and water reactive materials

JAN Code

683043-BULK:
683043-500G:
683043-VAR:
683043-100G:
683043-10G:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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  1. How does the storage temperature relate to shipping conditions?

    The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.

  2. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  3. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  4. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  5. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  6. What is the average particle size of Product 683043, Magnesium hydride?

    According to our supplier, the average particle size is approximately 50 microns.

  7. What is the bulk density for Product 683043, Magnesium hydride?

    According to our supplier, the bulk density is approximately 0.5 g/cm³.

  8. At what temperature will magnesium hydride start to decompose?

    Magnesium hydride has a decomposition temperature of 284°C.

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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Kazuhiro Nogita et al.
Scientific reports, 5, 8450-8450 (2015-02-14)
Hydrogen has the potential to power much of the modern world with only water as a by-product, but storing hydrogen safely and efficiently in solid form such as magnesium hydride remains a major obstacle. A significant challenge has been the
Tomasz Czujko et al.
Materials (Basel, Switzerland), 13(20) (2020-10-18)
Magnesium hydride, despite the decomposition temperature being incompatible with the operating temperature of a typical PEM cell, is still considered a prospective material for hydrogen storage. Hence, this paper presents new aspects of the influence of milling time on the
Nikola Biliškov et al.
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For the first time, in situ monitoring of uninterrupted mechanochemical synthesis of two bimetallic amidoboranes, M
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