When OH-accepts an H + ion it forms the water molecule, H 2 O. Hydroxyl groups are important in reducing the surface energy of ceramic materials such as a glass and therefore lower the fracture stress ...

This will only occur when the hydroxyl group is at the end of the molecule chain. Propan-1-ol is a primary alcohol. A secondary alcohol is one in which the hydroxyl group (-OH) is attached to a ...

A mixture of oil and water is a good example of an emulsion ... there are still unused hydroxyl group(s) on the molecule. One emulsifier that is commonly listed as a food additive is E471.