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It is used as a laboratory reagent and pH indicator. Phenolphthalein is a common indicator to use in neutralization titrations. Phenolphthalein exerts laxative effects by stimulating the intestinal mucosa and constricting smooth muscles. It is used medicinally as a cathartic.
J Epstein. Estimation of microquantities of cyanide. Anal. Chem. 2008, 19, (4), 272-274.
LG Bundy.; JM Bremner. A simple titrimetric method for determination of inorganic carbon in soils. Soil Science Society of America. 1972, 36, (2), 273-275.
Hazard Statements: H225-H333-H341-H350-H361-H371
Highly flammable liquid and vapour. May be harmful if inhaled. Suspected of causing genetic defects. May cause cancer. Suspected of damaging fertility or the unborn child. May cause damage to organs.
Precautionary Statements: P210-P260-P201-P303+P361+P353-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.