Property talk:P2101

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melting point
temperature at which a solid changes its state from solid to liquid at atmospheric pressure

Represents	melting point (Q15318)
Data type	Quantity
Template parameter	en and fr infoboxes about chemicals
Domain	According to this template: chemical compound (Q11173) According to statements in the property: type of chemical entity (Q113145171)substance (Q10683158) When possible, data should only be stored as statements
Allowed units	degree Celsius (Q25267), kelvin (Q11579) or degree Fahrenheit (Q42289)
Example	lead (Q708) → 327.462 degree Celsius water (Q283) → 0 degree Celsius
Tracking: usage	Category:Pages using Wikidata property P2101 (Q26250003)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P2101 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 32,613 Main statement 32,611 >99.9% of uses Qualifier 2 <0.1% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Units: “degree Celsius (Q25267), kelvin (Q11579), degree Fahrenheit (Q42289)”: 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/P2101#Units

Type “type of chemical entity (Q113145171)”: item must contain property “instance of (P31)” with classes “type of chemical entity (Q113145171)” or their subclasses (defined using subclass of (P279)). (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/P2101#Type Q113145171, SPARQL

Qualifiers “under pressure (P2077), determination method (P459), criterion used (P1013), uncertainty corresponds to (P2571), reason for deprecated rank (P2241), reason for preferred rank (P7452), sourcing circumstances (P1480), nature of statement (P5102), quotation (P1683), lower limit (P5447), upper limit (P5448)”: this property should be used only with the listed qualifiers. (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/P2101#allowed qualifiers, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2101#Scope, hourly updated report, SPARQL

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/P2101#citation needed

Type “substance (Q10683158)”: item must contain property “subclass of (P279)” with classes “substance (Q10683158)” or their subclasses (defined using subclass of (P279)). (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/P2101#Type Q10683158, SPARQL

This property is being used by: ar:قالب:معلومات كيمياء - خواص, ar:قالب:معلومات كيمياء - خواص/ملعب io:Shablono:Elemento ru:Шаблон:Вещество da:Skabelon:Infoboks grundstof ca:Plantilla:Infotaula de mineral, ca:Plantilla:Infotaula compost químic, ca:Plantilla:Infotaula de fàrmac, ca:Plantilla:Amadalvarez/traduccions 2, ca:Plantilla:Infotaula de fàrmac/prova, ca:Plantilla:Infotaula fàrmac/prova hy:Կաղապար:Տեղեկաքարտ Նյութ he:תבנית:יסוד כימי be-x-old:Шаблён:Рэчыва tg:Шаблон:Моддаи кимиёӣ nn:Mal:Infoboks kjemisk stoff eu:Txantiloi:Konposatu kimiko infotaula/probak, eu:Txantiloi:Konposatu kimiko infotaula cs:Šablona:Infobox - léčivá látka ast:Plantía:Ficha de compuestu químicu vec:Modèl:Infobox de Conposto chìmego, vec:Modeło:Infobox de Conposto chìmego ha:Template:Infobox chemical incubator:Template:Wp/shi/Infobox chemical kab:Talɣa:Infobox chemical shi:Talɣa:Infobox chemical ga:Teimpléad:WD Bosca Sonraí Comhdhúil Cheimiceach, ga:Teimpléad:WD Bosca Sonraí Druga, ga:Teimpléad:WD Bosca Sonraí Dúil Cheimiceach, ga:Teimpléad:WD Bosca Sonraí Mianra ff:Template:Infobox chemical ary:موضيل:معلومات عنصر كيماوي, ary:موضيل:معلومات مركب كيماوي diq:Şablon:Infobox elementi be-tarask:Шаблён:Рэчыва gv:Clowan:WD Kishtey Fys Co-vunstoo Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

f.p.

Unless there should be a separate property for freezing point, shouldn't this property also be known as "freezing point"? See https://www.wikidata.org/w/index.php?title=Property%3AP2101&type=revision&diff=1124473947&oldid=1114724182. --User123o987name (talk) 23:56, 26 February 2020 (UTC)