Answer: litmus

AnswerCrossword Clue
LITMUSAcid-testing paper
litmusblue coloring matter obtained from certain lichens, esp. Roccella tinctoria. In alkaline solution litmus turns blue, in acid solution, red: widely used as a chemical indicator
litmusa substance that changes colour with acidity, also LACMUS
LITMUSAcid test?
LITMUSKind of test or paper
LITMUSType of test
LITMUSBlue coloring matter
LITMUSKind of test
LITMUSKind of paper or test
LITMUSAcid indicator
LITMUS... paper.
LITMUSAcid-base indicator.
LITMUSAcid test material
LITMUSWord with test or paper
LITMUSDye used by chemists
LITMUSWord before paper or test
LITMUSIt turns blue in acid
LITMUSAcid or base indicator
LITMUS... test
LITMUSChemical indicator
LITMUSSubstance in acid tests
LITMUSChem test paper?
LITMUS.. test: pH indicator
LITMUSIt turns red in acid
LITMUSIt turns blue in an alkali
LITMUSBenchmark test
LITMUSAcid-base test dye