PH could be dertermined by just looking at the chemical color

[Warwick]

I a have a broad background in chemistry so I know the basics. I was looking at a tanning product and this was the guy's big claim "All these ingredients have high pH levels of over 6! What does this mean? A pH of over 6 is the COLOR ORANGE!" Now, I wasn't aware that pH could change the color of chemicals when applied to skin or any other surface not created for testing pH. I mean if pH could be dertermined by just looking at the chemical color what would be the point of pH paper. I don't know, is his claim a bunch of crap? Besides arn't all the colors over 6 not orange, lol?

 

[hypatia]

Normal skin pH is between 5.5 and 6.5. The drier the skin the lower the pH.
All effective sunless tanners contain DHA. It is a colourless 3-carbon sugar that when applied to the skin causes a chemical reaction with amino acids in the surface cells of the skin producing a darkening effect DHA does not damage skin as it only affects the outermost cells of the epidermis (stratum corneum).

 

[ravenprp]

While it is true that pH can sometimes be determined by the color of a chemical, this is not always the case. In fact, pH paper is used precisely because it provides a more accurate and reliable measure of pH than simply relying on color alone. Additionally, the claim that all chemicals with a pH over 6 are orange is incorrect. pH values can range from 0 to 14, with 7 being neutral. Therefore, a pH of over 6 could be a variety of colors depending on the specific chemical and its concentration. It is important to be cautious of claims that oversimplify scientific concepts and to always rely on accurate and validated methods of measuring pH.