H2SO4 gas detector, Sulfuric acid, Hydrogen sulfate
2019-4-14 · Sulfuric acid effects on health. At aient temperature, sulfuric acid (H2SO4) is an oily, colorless and odorless (when it is a pure gas) liquid.In case of dirt, it might be yellow-brown. This very corrosive substance can cause skin burnings and severe eye damage (H314). Sulfuric acid vapors are also very harmful and can be lethal if inhaled.