MSDS - Phenolphthalein

Phenolphthalein material data safety sheet. Reproduced with kind permission of the Department of Chemistry, Oxford University.

Last updated August 12, 2005

Common synonyms	2-(bis-(4-hydroxyphenyl)methyl)benzoic acid
Formula	C20H14O4
Properties	Form: Fine white to cream-coloured powder Stability: Stable Melting point: 260 C Water solubility: negligible Specific gravity: 1.29 Colour change range: pH 8.2 - 10.0 Colour change: colourless to pink pK at 20 C: 9.5 Preparation: 0.05g in 100 ml 50% v/v/ ethanol-water
Principal hazards	This chemical may cause irritation if you get it into your eyes or breathe it in.
Safe handling	Wear safety glasses.
Emergency	Eye contact: Immediately flush the eye with plenty of water. If irritation persists call for medical help. Skin contact: Wash off with water. If swallowed: Wash out the mouth with water if the person is conscious. If a significant quantity has been swallowed, call for medical help.
Disposal	Small amounts of phenolphthalein can be flushed down a sink with a large quantity of water, unless local rules prohibit this.
Protective equipment	Safety glasses.
Further information	http://ptcl.chem.ox.ac.uk/MSDS/PH/phenolphthalein.html

Bio-rich-time-poor 22:30, 25 June 2011 (BST)