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223441

Sigma-Aldrich

Sodium hydride

greener alternative

dry, 90%

Synonym(s):

Sodium monohydride

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About This Item

Linear Formula:
NaH
CAS Number:
7646-69-7
Molecular Weight:
24.00
EC Number:
231-587-3
MDL number:
MFCD00003471
UNSPSC Code:
26111700
eCl@ss:
38100205
PubChem Substance ID:
24853383
NACRES:
NA.22

Quality Level

200

Assay

90%

form

powder

reaction suitability

reagent type: reductant

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp

800 °C (dec.) (lit.)

greener alternative category

Enabling,

SMILES string

[Na]

InChI

1S/Na.H

InChI key

MPMYQQHEHYDOCL-UHFFFAOYSA-N

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General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

Sodium hydride (dry) (NaH) can be used for a variety of applications such as:
  • preparation of sodium aluminum hydride (NaAlH4), which can be used as a hydrogen storage material
  • a base and a reducing agent for the deprotonation of alcohols, phenols, amides, ketones, and different functional groups
  • a hydride donor that can be used in various reactions such as nitriles, amides, and imines
  • for potential usage in thermal energy storage

Direct intercalation into C60 results in the superconducting material (NaH)4C60.

Flash Point(F)

365.0 °F

Flash Point(C)

185 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品

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. 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.

  2. 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.

  3. What impurities are present in the Product 223441, Sodium Hydride?

    We have not performed impurity profiling on this product and therefore can not provide an impurity profile.  Impurities may include unreacted starting materials, residual solvents, reaction byproducts, etc.

  4. The website states Product 223441, Sodium Hydride, is packaged in a metal can, can you give me more details on the container type?

    The Sodium Hydride will have been packaged under a Nitrogen atmosphere.  The material will be a plastic bag and  sealed inside of a metal can (paint can where you can pop the lid off).  On the top of the can, there will be a plastic ring sealing the lid.  This ring will need to be removed in order to open the can.

  5. Besides water, are there other materials that Product 223441, Sodium Hydride. will react hazardously with?

    Yes, per the Hazardous Laboratory Chemicals Disposal Guide, 2nd Edition, the following should also be avoided:Acetylene reacts vigorously in the presence of moisture even at -60oC. Air - the finely divided dry powder ignites in dry air. Halogens incandesces in Chlorine or Fluorine at room temperature and in Iodine at 100o C. Sulfur Dioxide -  reacts explosively with Sulfur Dioxide. Addition to water even in small amounts will result in explosion.

  6. What is Product 223441, Sodium Hydride, soluble in?

    Per the Merck Index, 13th Edition, it reacts explosively with water, violently with lower alcohols, ignites spontaneously on standing in moist air.  Soluble in molten Sodium Hydroxide, insoluble in liquid Ammonia.

  7. If Product 223441, Sodium Hydride, should start on fire, what is the best way to extinguish the fire?

    Use only a Metal-X (Class D) type extinguisher to extinguish the fire.Do not use water, carbon dioxide, or halocarbon extinguishers. 

  8. 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.

  9. 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. 

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

    Ask a Scientist here.

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Complications from dual roles of sodium hydride as a base and as a reducing agent
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The Journal of Organic Chemistry, 74(6), 2567-2570 (2009)
Ti-doped NaAlH4 as a hydrogen-storage material-preparation by Ti-catalyzed hydrogenation of aluminum powder in conjunction with sodium hydride
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