Trabalhando Com Produtos Quimicos Parte 7

Working Safely with Chemicals • • • • •

Chemical Safety Concepts Safe Use and Storage Disposal of Chemicals Emergencies Radiation Safety

Disposal of Unwanted Chemicals ….. Chemical Disposal Methods…. – In-Lab Chemical management – On-Site Hazardous Materials Management OSHMM – Redistribution of Unwanted Chemicals -

ITS FREE!!!!

In-Lab Chemical Management – Flushing down the sanitary sewer (limited to chemicals on drain disposal guideline SYG01) – Neutralization – Normal Trash

• If you have questions or are uncomfortable with steps outlined for in-lab management, please call EHS at 814-865-6391

Acid Neutralization (hydrochloric, phosphoric, sulfuric, [<50%] acids) Use fume hood & wear PPE – Dilute acid with cold water to 1:10 (always add acid to water) – Slowly add sodium carbonate or calcium carbonate until pH between 5 & 10 – Allow solids to settle – Decant solution to drain with at least 50 times the volume of water – Allow solid to dry and package for disposal in normal trash