Mt : iUniversalVocabularyMt
genls : [Def]tInorganicMaterial  [Inf]tIonicCompound

Mt : iChemicalSolutionsChemistryDomainMt
genls : [Inf]tStrongElectrolyte

Mt : iChemistryVocabularyMt
genls : [Inf]tCrystalline

Mt : iChemistryMt
anionTypeOfIonicCompoundType :  [Inf]tSulfideIon
[Inf](atomicComposition
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1) tSodium 2)
[Inf](atomicComposition
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1) tSulfur 1)
cationTypeOfIonicCompoundType : [Inf]tSodiumIon

Mt : iGeneralEnglishMt
chemicalFormulaString : [R]M"Na2S"

Mt : iChemistryMt
[Inf](completeAtomicCompositionList
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1)
    (vTheListFn tSodium tSulfur)
    (vTheListFn 2 1))

Mt : iGeneralEnglishMt
dispreferredLexification :  [Inf][R]M(chemicalFormulaString
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1) "Na2S")


Mt : iChemistryMt
elementTypesInFormulaList : [Inf](vTheListFn tSodium tSulfur)

[Mon](ionicDecomposition
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1) tSodiumIon 2 tSulfideIon 1)
isomers :   [Inf]tSodiumSulfide

Mt : iChemicalCompositionChemistryDomainMt
molarMassOfType :   [Inf]((cycPerFn vGramFn vMoleChemicalCountUnitFn) 78.04454)


Mt : iChemicalSolutionsChemistryDomainMt
solubleInTypetype : [Inf](tColOfLiquidFn tWater)

Mt : iBaseKB
termOfUnit :    [Mon](tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1)

GAF Arg : 2

Mt : iChemistryMt
[Inf](isomers tSodiumSulfide
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1))

Mt : iOilAndGasIndustryMt
[Inf](typicallyRelnToType properPhysicalParts
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1) tSodiumIon)
[Inf](typicallyRelnToType properPhysicalParts
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1) tSulfideIon)
GAF Arg : 3

Mt : iChemicalCompositionChemistryDomainMt
[Inf](oxidationNumberInForm tSodium 1
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1))
[Inf](oxidationNumberInForm tSulfur -2
    (tColOfIonicDecompositionFn tSodiumIon 2 tSulfideIon 1))