Wikidata:WikiProject Chemistry/Properties
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Rules of this page:
- Feel free to add new property for discussion in the tables. Set the "progress" column to
{{Int proposal}}(use the template for proper translation). - Please use the talk page to discuss about properties creation or use. If you want to discuss about one property, create a new section on the talk page and set the "progress" column to '
{{Int discussion}}(use the template also here) and link the property in the table with the section. If you want to start the proposal process you can direct the link to the Chemistry section of the Natural science proposal page.
General properties for chemical (substances + elements)
[edit]Application of data
[edit]- en:Template:Chembox
- en:Template:Infobox drug
- de:Vorlage:Infobox Chemikalie
- fr:modèle:Infobox Chimie
- pt:Predefinição:Info/Química
(see the Template:Chembox (Q52426) 
for a complete list of chemboxes, that may or may not use the datas)
Up-to-date list of properties about chemical
[edit]SELECT ?prop ?propLabel WHERE {
?prop wdt:P31 wd:Q21294996.
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
SELECT ?prop ?propLabel WHERE {
?prop wdt:P31 wd:Q19833835.
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
identifiers
[edit]Chemical and physical properties
[edit]| property | datatype | qualifiers | constraints | progress | remark |
|---|---|---|---|---|---|
| has part(s) (P527) | Item | * | created | Still missing is a qualifier to define the number of atoms | |
| Molar mass | value | * | * | not done | Use of chemical formula to calculate molar mass ? |
| standard enthalpy of formation (P3078) | value | phase of matter (P515) | link | created | |
| standard molar entropy (P3071) | value | phase of matter (P515) | link | created | |
| melting point (P2101) | value | Max | link | created | Max for temperature interval if necessary |
| boiling point (P2102) | value | under pressure (P2077) | link | created | |
| sublimation temperature (P2113) | value | under pressure (P2077), remark | link | created | |
| decomposition point (P2107) | value | * | link | created | Decomposition is usually indicated in m.p. or b.p. records (as is proposed here, see above). However, it is not necessarily coincided with these values. Decomposition may take place without phase transition, e.g. in gas phase; an observed "boiling point" may be just decomposition into volatile product(s) without reaching the real b.p. of a substance; the phase of a decomposing substance may not be known. Thus, instead of adding unprecise remarks to the m.p./b.p.'s (which are reasonable only in printed material, to save place), an additional field assigned exclusively for this value would be advantageous. |
| density (P2054) | value | temperature (P2076), under pressure (P2077), phase of matter (P515) | link | created | |
| vapor pressure (P2119) | value | temperature (P2076) | link | created | |
| kinematic viscosity (P2118) | value | temperature (P2076), phase of matter (P515) | link | created | |
| dynamic viscosity (P3070) | value | temperature (P2076), phase of matter (P515) | link | created | |
| thermal conductivity (P2068) | value | temperature (P2076), under pressure (P2077), phase of matter (P515) | link | Created | Is it necessary to provide the phase (liquid/solid/gas) ? |
| electrical conductivity (P2055) | value | temperature (P2076), under pressure (P2077), phase of matter (P515) | link | created | Is it necessary to provide the phase (liquid/solid/gas) ? |
| Critical point phase point (P873) | value | temperature (P2076), under pressure (P2077) | link | created | We could also have qualifier for critical density or critical volume |
| Triple point phase point (P873) | value | temperature (P2076), under pressure (P2077), phase of matter (P515) | link | created | |
| molar fusion enthalpy (P2066) | value | temperature (P2076) | link | created | |
| molar enthalpy of vaporization (P2116) | value | temperature (P2076) | link | created | |
| combustion enthalpy (P2117) | value | * | link | created | High heating value or low heating value ? |
| specific heat capacity (P2056) | value | temperature (P2076), phase of matter (P515) | link | created | |
| electric dipole moment (P2201) | value | * | link | created | |
| speed of sound (P2075) | value | temperature (P2076), under pressure (P2077), Wavetype (e.g.= longitudinal, transversal, lamb, rayleigh, love, torsion, whatever) | link | created | |
| solubility (P2177) | value | solvent (P2178), temperature (P2076) | link | created | Add pressure as property for gases? |
| pKa (P1117) | value | temperature (P2076), concentration | link | created | |
| phase of matter (P515) | value | temperature (P2076), wavelength, polarization | link | created | |
| Composition | ? | Min, max, remark | not initialized | This property will facilitate known compositional data for complex objects. In some cases data may be variable, so minimum and maximum values are desirable when such data is available. Example items include consumables, such as cheddar cheese with 721 mg calcium per 100 g, and for which the USDA's National Nutrient Database for Standard Reference contains 8,194 public domain datasets that could easily be gathered by a bot. — C M B J 04:46, 18 April 2013 (UTC) | |
| partition coefficient water/octanol (P2993) | value | temperature (P2076) | link | created | |
| surface tension (P3013) | value | temperature (P2076) | link | created |
Safety parameters
[edit]Crystallography
[edit]| property | datatype | Qualifier1 | Qualifier2 | FR | EN | DE | Creation level | description |
|---|---|---|---|---|---|---|---|---|
| crystal system (P556) | Item | * | * | X | * | * | created | 7 possibilities: cubic crystal system (Q473227), hexagonal crystal system (Q663314), trigonal crystal system (Q588274), tetragonal crystal system (Q503601), orthorhombic crystal system (Q648961), monoclinic crystal system (Q624543), triclinic crystal system (Q376927) |
| point group (P589) | Item | created | 32 possibilities | |||||
| space group (P690) | Item | * | * | X | * | * | created | 230 possibilities: 14 of which are Bravais lattices |
| Lattice parameter a | value | * | * | X | * | * | proposal | Or use qualifier to define the parameter instead of creating one property for each parameter ? |
| Lattice parameter b | value | * | * | X | * | * | proposal | |
| Lattice parameter c | value | * | * | X | * | * | proposal | |
| Lattice parameter α | value | * | * | X | * | * | proposal | |
| Lattice parameter β | value | * | * | X | * | * | proposal | |
| Lattice parameter γ | value | * | * | X | * | * | proposal | |
| Theoretical density | value | * | * | X | * | * | proposal | |
| Volume | value | * | * | X | * | * | proposal | |
| Parameter Z | value | * | * | X | * | * | proposal | |
| crystal habit (P565) | Item | * | * | * | * | * | created | e.g. aspirin = needle-like |
| ... | * | * | * | * | * | * | proposal |
Qualifier
[edit]Specific properties for chemical elements
[edit]Application of data
[edit]list of properties
[edit]| property | datatype | Qualifier1 | Qualifier2 | FR | EN | DE | progress | description |
|---|---|---|---|---|---|---|---|---|
| atomic number (P1086) | value | * | * | X | X | X | created | |
| аtomic weight | value | * | * | X | X | X | proposal | |
| element symbol (P246) | string | * | * | ? | ? | ? | created | |
| Electron configuration | String | * | * | ? | ? | ? | proposal | |
| electronegativity (P1108) | value | * | * | ? | ? | ? | created | |
| Radioactive element | * | * | * | ? | ? | ? | discussion | |
| Periodic table group | value | * | * | ? | ? | ? | proposal | |
| Periodic table period | value | * | * | ? | ? | ? | proposal | |
| Periodic table block | Monolingual text | * | * | ? | ? | ? | proposal | |
| Periodic classification | Item | * | * | ? | ? | ? | proposal | metal, non-metal, halogen, noble gas |
| ionization energy (P2260) | value | series ordinal (P1545) | * | ? | ? | ? | created | |
| oxidation state (P1121) | value | created |
List of general properties useful for chemical topics
[edit]- Properties for references, see Help:Sources
- Other properties: discoverer or inventor (P61), named after (P138)