Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
pH indicator
|
| gptkbp:colorChangeInAcid |
red
|
| gptkbp:colorChangeInBase |
blue
|
| gptkbp:colorInNeutral |
purple
|
| gptkbp:commonIn |
laboratory testing
|
| gptkbp:component |
litmus dye
|
| gptkbp:discoveredBy |
gptkb:Arnaldus_de_Villa_Nova
|
| gptkbp:form |
paper strip
|
| https://www.w3.org/2000/01/rdf-schema#label |
litmus paper
|
| gptkbp:introducedIn |
14th century
|
| gptkbp:origin |
lichen extract
|
| gptkbp:pH |
4.5 to 8.3
|
| gptkbp:solubility |
water soluble
|
| gptkbp:usedFor |
testing acidity
testing alkalinity |
| gptkbp:bfsParent |
gptkb:Universal_Indicator
|
| gptkbp:bfsLayer |
7
|