Extraction Of Crude Caffeine From Tea Using Liquid-Liquid Extraction (Safety Sheet)

Experiment 5 Extraction of Crude Caffeine from Tea using Liquid-Liquid Extraction Safety Data Sheet General Guide for the Proper Laboratory Attire: 1. Always wear a face shield or face mask large enough to protect your ears and neck as well as your face when dealing with chemicals. 2. Wear gloves when handling chemicals. Select the glove material based on compatibility with the chemicals you may contact. 3. Wear appropriate protective work clothing that protects your body from chemical exposure. 4. Put-on protective goggles for eye protection. 5. Use chemicals only as directed and for their intended purpose. Chemical Compound Properties Hazards First-aid Measures or other Measures Needed Anhydrous calcium chloride Calcium chloride is found as an odorless white powder, granules or flakes. It has a density of 2.15 g/mL, melting point of 782 C and a high boiling point over 1600 C. CaCl2 is highly water soluble, hygroscopic and deliquescent). Calcium chloride dissolves in water in a very exothermic manner. Calcium chloride is not toxic in normal amounts and is used in foods. However, its main hazard is due to its desiccating Eye: Contact with eyes may cause severe irritation, and possible eye burns. Skin: Contact with skin causes irritation