Sodium amide facts for kids
Quick facts for kids Sodium amide |
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| IUPAC name | Sodium amide, sodium azanide |
| Other names | Sodamide |
| Identifiers | |
| CAS number | |
| PubChem | |
| 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 ΔfH |
-118.8 kJ/mol |
| Standard molar entropy S |
76.9 J/mol K |
| Specific heat capacity, C | 66.15 J/mol K |
| Hazards | |
| NFPA 704 |
2
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| Related compounds | |
| Other anions | Sodium bis(trimethylsilyl)amide |
| Other cations | Lithium amide Potassium amide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
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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