Google Doodle celebrates creator of pH scale S.P.L. Sorensen


The pH scale measures acidity and alkalinity of any substance. Google celebrates the scale’s creator, S.P.L. Sorensen with a doodle.

The Danish chemist was born in Havrebjerg, Denmark, on January 9, 1868. He became the head of Copenhagen’s prestigious Carlsberg Laboratory in 1901, a lab created by the founder of the Carlsberg brewery mainly to advance biochemical knowledge relating to brewing.

Instead, Sorensen made a significant contribution to the field of chemistry, introducing the pH scale in 1909 as a simple way of showing the effect of ion concentration on proteins.

Solutions with a pH less than 7 are acidic and solutions with a pH greater than 7 are basic.

With his great achievement for chemistry, Sorensen died February 12, 1939, aged 71.

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