People usually deal with a variety of chemicals that ignore the warnings and failure to follow safety principles will have dire consequences that in some cases can not be compensated. Those who deal with chemicals should be aware that they are aware of a variety of hazards, including the destruction of vital tissues and organs, carcinogenesis, mutagenesis, chronic allergies, etc., and by chemicals, so be familiar with how to work with chemicals properly. Risks and how to deal properly in the event of an accident in the laboratory is absolutely essential.