Property talk:P9440
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Documentation
pH value
acidity and alkalinity of an aqueous solution
acidity and alkalinity of an aqueous solution
Represents | pH (Q40936) | |||||||||
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Data type | Quantity | |||||||||
Allowed values | 0 ≤ 𝓧 ≤ 14 | |||||||||
Allowed units | not applicable | |||||||||
Example | distilled water (Q274959) → 7 Camembert (Q131480) → 7.44 Bosten Lake (Q611206) → 8.47 | |||||||||
Tracking: usage | Category:Pages using Wikidata property P9440 (Q116223663) | |||||||||
See also | pKa (P1117), temperature (P2076), salinity (P4350), serving temperature (P7767) | |||||||||
Lists |
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Proposal discussion | Proposal discussion | |||||||||
Current uses |
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[create Create a translatable help page (preferably in English) for this property to be included here]
Units: “novalue”: value unit must be one of listed. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P9440#Units
Range from “0” to “14”: values should be in the range from “0” to “14”. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P9440#Range
Citation needed: the property must have at least one reference (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P9440#citation needed
Scope is as main value (Q54828448), as qualifier (Q54828449): the property must be used by specified way only (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P9440#Scope, SPARQL
Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P9440#Entity types