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Sodium amide facts for kids

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Sodium amide
Names
IUPAC name
Sodium amide, sodium azanide
Other names
Sodamide
Identifiers
CAS number 7782-92-5
PubChem 24533
EC number 231-971-0
SMILES [NH2-].[Na+]
Properties
Molecular formula NaNH2
Molar mass 39.01 g mol−1
Appearance Colourless crystals
Odor ammonia-like
Density 1.39 g cm−3
Melting point

210 °C, 483 K, 410 °F

Boiling point

400 °C, 673 K, 752 °F

Solubility in water reacts
Solubility 0.004 g/100 mL (liquid ammonia), reacts in ethanol
Acidity (pKa) 38 (conjugate acid)
Structure
Crystal structure orthorhombic
Thermochemistry
Std enthalpy of
formation ΔfHo298
-118.8 kJ/mol
Standard molar
entropy So298
76.9 J/mol K
Specific heat capacity, C 66.15 J/mol K
Hazards
NFPA 704

NFPA 704.svg

2
3
3
 
Related compounds
Other anions Sodium bis(trimethylsilyl)amide
Other cations Lithium amide
Potassium amide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Sodium amide, also known as sodamide, is a chemical compound. It contains sodium and amide ions. Its chemical formula is NaNH2. It is a very strong base, even stronger than hydroxides like sodium hydroxide. It reacts violently with water. It is a white solid, although it can be gray. It is made by reacting sodium metal with liquid or gaseous ammonia. It is used to make hydrazine and sodium azide. It is used to make various chemicals. It reacts with water to make ammonia and sodium hydroxide. It burns in air to make oxides of sodium and nitrogen, such as nitrogen dioxide. If there is only a little air, explosive chemicals may form. If it turns yellow or brown, get rid of it immediately. It is corrosive because it is a strong base.

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