what is its exact chemical composition?
1. feel slippery- bases are slippery. 2. corrode materials 3. red litmus paper 4. cleaning supplies 5. acidic
When cement is dry it contains calcium oxide, which is not particularly dangerous. However, when water is added to cement, calcium hydroxide is formed, which is extremely alkaline with a pH of 12 to 13. Normal human skin has a pH of 5.5; therefore, wet cement can produce alkaline (caustic) skin burns which progress and get worse without more exposure.
