Sunscreen soap and UV radiation
Higher concentrations of Octyl salicylate in soap mixtures are able to block a greater amount of UV radiation.
Sunscreen lotions or soaps are used to block, absorb or reflect ultraviolet radiation from the sun. They are applied to our skin for protection from the sun’s ultraviolet rays and help in the prevention of sunburn.
The effectiveness of a sunscreen is measured by their Sun Protection Factor (SPF) rating. A higher SPF rating generally means greater protection from the sun’s UV-B radiation (the ultraviolet ray that causes skin sunburn). The amount of protection from UV-B radiation will depend on our skin type, the amount of sunscreen applied, the amount of sweat or type of activity involved and the amount of sunscreen absorbed by the skin.
Sunscreens are made using substances that filter ultraviolet rays. These materials are organic compounds, organic particulates or inorganic particulates. Octyl salicylate is an organic compound that is used to absorb UV-B radiation from the sun. It is a colorless and oily liquid.
The simplest way of measuring ultraviolet radiation is the UV index. Each unit on the UV index represents about 25mW per square meter of UV radiation. The UV index range is described as follows:
Less than 3: Moderate levels
Between 3 and 6: High levels - enough to cause sunburn even at temperatures below 27 degrees Celsius
Between 7 and 9: Very high levels - enough to cause sunburn on cloudy days
More than 9: Extreme levels - that can cause sunburn to an unprotected skin within 12 minutes.
Avoid long, unprotected exposure to the sun. Handle glass extremely carefully. Adult assistance required.