1890 - 1954
Sonti Kamesam Indian Inventor
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Sonti Kamesam is a member of the following lists: 1890 births, 1954 deaths and 1952 deaths.
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Details
| First Name |
Sonti
|
| Last Name |
Kamesam
|
| Birthday |
30th November, 1889
|
| Died |
1954
|
| Nationality |
Indian
|
| Occupation |
Inventor
|
Sonti Kamesam (1890–1954) was an Indian timber engineer and scientist who worked at the Forest Research Institute, Dehra Dun. He is best known for his patented wood preservative, ASCU, from the chemical symbols for Arsenic and Copper. The treatment was patented in Britain from 1934 and in the US from 1938. It also went by the name of Chromated Copper Arsenate or CCA in the United States of America from around the 1950s. In his treatment, copper is a fungicide, arsenic is a secondary fungicide and insecticide, while chromium is a fixative which also provides ultraviolet (UV) light resistance. Recognized for the greenish tint it imparts to timber. this preservative was extremely popular for many decades until arsenic toxicity and carcinogenicity was recognized by the US EPA and other regulators.
