It is wise to treat unknown materials as very hazardous until they are positively identified. Corrosive materials are present in almost every workplace. Everyone who works with corrosives must be aware of their hazards and how to work safely with them. Corrosives can burn and destroy body tissues on contact. The stronger, or more concentrated, the corrosive material is and the longer it touches the body, the worse the injuries will be.
Some corrosives are toxic and can cause other health problems.
Check the MSDS and label on the container for warnings of other possible health effects. An example is the chemical glutaraldehyde. It has been used as a disinfectant and sterilizing agent in medical and dental settings as well as other uses. It is harmful if inhaled or swallowed. Glutaraldehyde can be irritating or corrosive to the respiratory tract, eyes and skin.