Input interpretation
![sodium sulfide](../image_source/40b65114d6e8873be000f6c98c8cfa58.png)
sodium sulfide
Chemical names and formulas
![formula | Na_2S Hill formula | Na_2S_1 name | sodium sulfide alternate names | disodium bisulfide | disodium sulfanide | disodium sulfide | sodium monosulfide | sodium sulfide anhydrous mass fractions | Na (sodium) 58.9% | S (sulfur) 41.1%](../image_source/d43fd9bbe31f42dd532f6e13525c8143.png)
formula | Na_2S Hill formula | Na_2S_1 name | sodium sulfide alternate names | disodium bisulfide | disodium sulfanide | disodium sulfide | sodium monosulfide | sodium sulfide anhydrous mass fractions | Na (sodium) 58.9% | S (sulfur) 41.1%
Structure diagram
![Structure diagram](../image_source/94dea8440b3d6e1fee293cd6311a1c59.png)
Structure diagram
Basic properties
![molar mass | 78.04 g/mol phase | solid (at STP) melting point | 1172 °C density | 1.856 g/cm^3](../image_source/1e26dc340811940f2850719bb02ad444.png)
molar mass | 78.04 g/mol phase | solid (at STP) melting point | 1172 °C density | 1.856 g/cm^3
Units
Solid properties (at STP)
![density | 1.856 g/cm^3](../image_source/3ebe39a51f3c680fc0dd9679322cf79c.png)
density | 1.856 g/cm^3
Units
Thermodynamic properties
![specific free energy of formation Δ_fG° | solid | -4.482 kJ/g molar free energy of formation Δ_fG° | solid | -349.8 kJ/mol specific heat of formation Δ_fH° | solid | -4.675 kJ/g molar heat of formation Δ_fH° | solid | -364.8 kJ/mol molar heat of fusion | 19 kJ/mol | specific heat of fusion | 0.24 kJ/g | (at STP)](../image_source/a2c8fb27376859aaad4e7aa1f0f779f2.png)
specific free energy of formation Δ_fG° | solid | -4.482 kJ/g molar free energy of formation Δ_fG° | solid | -349.8 kJ/mol specific heat of formation Δ_fH° | solid | -4.675 kJ/g molar heat of formation Δ_fH° | solid | -364.8 kJ/mol molar heat of fusion | 19 kJ/mol | specific heat of fusion | 0.24 kJ/g | (at STP)
Chemical identifiers
![CAS number | 1313-82-2 SMILES identifier | [Na+].[Na+].[S-2] RTECS number | WE1905000 MDL number | MFCD00003498](../image_source/e26224645b1ce6effb9df1493f1527ee.png)
CAS number | 1313-82-2 SMILES identifier | [Na+].[Na+].[S-2] RTECS number | WE1905000 MDL number | MFCD00003498
NFPA label
![NFPA label](../image_source/a82745d19f63aeb391aba29d12e6e708.png)
NFPA label
![NFPA health rating | 3 NFPA fire rating | 1 NFPA reactivity rating | 1](../image_source/8a981a7d21be101a6dd19e32341a3bd7.png)
NFPA health rating | 3 NFPA fire rating | 1 NFPA reactivity rating | 1
Toxicity properties
![RTECS classes | other](../image_source/b77e78512885f0d3c8a3592dbb15d71a.png)
RTECS classes | other