Admin Table of Contents
- 1 What precautions should be taken about equipment and chemicals while doing experiment in the lab?
- 2 What precautions should be taken when using chemicals?
- 3 What happens if you touch sodium?
- 4 What do you need to know about laboratory safety?
- 5 What do you need to know about chemical safety?
- 6 What do you need to know about sample preparation?
What precautions should be taken about equipment and chemicals while doing experiment in the lab?
LABORATORY PRECAUTIONS AND SAFETY PROCEDURES No food or drink is allowed in lab unless food or drinks are provided as a part of the lab. Shoes must be worn in lab. If you have very long hair, please tie it back in the laboratory. Handle chemicals, reagents, and stains carefully and follow all warnings.
What precautions should be taken when using chemicals?
General rules for handling chemicals
- Do not return chemicals to their original packaging.
- Keep chemical containers closed.
- Never use a wrong or an unmarked reagent.
- Never put spatulas, stirrers or other objects into a storage container for chemicals.
What precautions should be taken while handling sodium metal?
Handling Precautions/Conditions: The metal should be handled under the surface of an inert liquid such as mineral oil, xylene, or toluene. Sodium should be used only in areas free of ignition sources and should be stored under mineral oil in tightly sealed metal containers under an inert gas such as argon.
What happens if you touch sodium?
Contact with very high concentrations of sodium hydroxide can cause severe burns to the eyes, skin, digestive system or lungs, resulting in permanent damage or death. Prolonged or repeated skin contact may cause dermatitis. Repeated inhalation of sodium hydroxide vapor can lead to permanent lung damage.
What do you need to know about laboratory safety?
All bottles and containers are labeled as to contents and potential hazards. If, for example, a label says avoid contact with substance and fumes, do so. For potentially hazardous chemicals, information on the hazards, proper handling, and clean-up is provided on Material Safety Data Sheets (MSDS). These are available in the lab.
What should you do when you leave a lab?
· Take labels from test tubes and/or beakers. · Wash all glassware and put it back where you found it. · Place all dirty slides and cover slips in the designated containers. · Leave tables clean when you leave the lab. Throw away any trash you generate. Wipe up water, other liquids, soil, and plant material.
What do you need to know about chemical safety?
Handle chemicals, reagents, and stains carefully and follow all warnings. All bottles and containers are labeled as to contents and potential hazards. If, for example, a label says avoid contact with substance and fumes, do so.
What do you need to know about sample preparation?
Sampling Concentration, Separation, Isolation, etc. On first impression, sample preparation may seem the most routine aspect of an analytical protocol. However, it is critical that analysts realize and remember that a measurement is only as good as the sample preparation that has preceded it.