Drug Information On-line (drugs.com); CAMEO Chemicals; CD #5
Liquified phenol is made from liquified carbolic acid by the addition of 10% water, is poisonous and its anesthetic qualities will numb rather than burn skin. Phenol (C6H5OH) has a distinct odour that is sickenly sweet and tarry. A colourless liquid when pure, otherwise pink or red. Commercial phenol is a liquid that evaporates more slowly than water. Pharmacy bottles were designed with built in hazardous warnings by adding raised vertical grooves, or embossed stars when the contents were poisonous. The tactile reminder eliminated possible improper use, especially in poor lighting for the customer. Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008.