Their Hammett acidity function values (H0

Page 1

{"fact":"Miacis, the primitive ancestor of cats, was a small, tree-living creature of the late Eocene period, some 45 to 50 million years ago.","length":133}

{"type":"standard","title":"Carborane acid","displaytitle":"Carborane acid","namespace":{"id":0,"text":""},"wikibase_item":"Q11295155","titles":{"canonical":"Carborane_acid","normalized":"Carborane acid","display":"Carborane acid"},"pageid":39667666,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Carborane-acid-3D-balls.png/330px-Carborane-acid-3D-balls.png","width":320,"height":304},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/7/76/Carborane-acid-3D-balls.png","width":1100,"height":1046},"lang":"en","dir":"ltr","revision":"1291753244","tid":"93569896-3797-11f0-a658-09818ac7c584","timestamp":"2025-05-23T05:34:20Z","description":"Class of chemical compounds","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Carborane_acid","revisions":"https://en.wikipedia.org/wiki/Carborane_acid?action=history","edit":"https://en.wikipedia.org/wiki/Carborane_acid?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Carborane_acid"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Carborane_acid","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Carborane_acid","edit":"https://en.m.wikipedia.org/wiki/Carborane_acid?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Carborane_acid"}},"extract":"Carborane acids H(CXB11Y5Z6) (X, Y, Z = H, Alk, F, Cl, Br, CF3) are a class of superacids, some of which are estimated to be at least one million times stronger than 100% pure sulfuric acid in terms of their Hammett acidity function values (H0 ≤ −18) and possess computed pKa values well below −20, establishing them as some of the strongest known Brønsted acids. The best-studied example is the highly chlorinated derivative H(CHB11Cl11). The acidity of H(CHB11Cl11) was found to vastly exceed that of triflic acid, CF3SO3H, and bistriflimide, (CF3SO2)2NH, compounds previously regarded as the strongest isolable acids.","extract_html":"

Carborane acids H(CXB
11
Y
5
Z
6
)
(X, Y, Z = H, Alk, F, Cl, Br, CF3) are a class of superacids, some of which are estimated to be at least one million times stronger than 100% pure sulfuric acid in terms of their Hammett acidity function values (H0 ≤ −18) and possess computed pKa values well below −20, establishing them as some of the strongest known Brønsted acids. The best-studied example is the highly chlorinated derivative H(CHB
11
Cl
11
)
. The acidity of H(CHB
11
Cl
11
)
was found to vastly exceed that of triflic acid, CF
3
SO
3
H
, and bistriflimide, (CF
3
SO
2
)
2
NH
, compounds previously regarded as the strongest isolable acids.

"}

{"slip": { "id": 97, "advice": "If you are ever in doubt about whether or not to wash your hair: Wash it."}}

{"slip": { "id": 125, "advice": "Why wait until valentines day for a romantic gesture?"}}

{"fact":"Cats don\u2019t have sweat glands over their bodies like humans do. Instead, they sweat only through their paws.","length":107}

{"type":"standard","title":"PB-6 Duki","displaytitle":"PB-6 Duki","namespace":{"id":0,"text":""},"wikibase_item":"Q115801385","titles":{"canonical":"PB-6_Duki","normalized":"PB-6 Duki","display":"PB-6 Duki"},"pageid":72406169,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/PB-6_Duki_%282023%29.svg/330px-PB-6_Duki_%282023%29.svg.png","width":320,"height":256},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/PB-6_Duki_%282023%29.svg/1000px-PB-6_Duki_%282023%29.svg.png","width":1000,"height":800},"lang":"en","dir":"ltr","revision":"1287031071","tid":"3495e453-2056-11f0-a89e-60d43512fa41","timestamp":"2025-04-23T15:18:27Z","description":"Constituency of the Provincial Assembly of Balochistan, Pakistan","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/PB-6_Duki","revisions":"https://en.wikipedia.org/wiki/PB-6_Duki?action=history","edit":"https://en.wikipedia.org/wiki/PB-6_Duki?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:PB-6_Duki"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/PB-6_Duki","revisions":"https://en.m.wikipedia.org/wiki/Special:History/PB-6_Duki","edit":"https://en.m.wikipedia.org/wiki/PB-6_Duki?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:PB-6_Duki"}},"extract":"PB-6 Duki is a constituency of the Provincial Assembly of Balochistan.","extract_html":"

PB-6 Duki is a constituency of the Provincial Assembly of Balochistan.

"}

{"slip": { "id": 84, "advice": "Never set an alarm clock unless you know how to switch it off"}}

{"type":"standard","title":"Yann Benoist","displaytitle":"Yann Benoist","namespace":{"id":0,"text":""},"wikibase_item":"Q20090277","titles":{"canonical":"Yann_Benoist","normalized":"Yann Benoist","display":"Yann Benoist"},"pageid":45575009,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Studio_de_Bretagne_2013.jpg/330px-Studio_de_Bretagne_2013.jpg","width":320,"height":427},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/3/32/Studio_de_Bretagne_2013.jpg","width":720,"height":960},"lang":"en","dir":"ltr","revision":"1255739283","tid":"bb384045-9c35-11ef-9ecc-7613dba14d04","timestamp":"2024-11-06T11:53:26Z","description":"Musical artist","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Yann_Benoist","revisions":"https://en.wikipedia.org/wiki/Yann_Benoist?action=history","edit":"https://en.wikipedia.org/wiki/Yann_Benoist?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Yann_Benoist"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Yann_Benoist","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Yann_Benoist","edit":"https://en.m.wikipedia.org/wiki/Yann_Benoist?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Yann_Benoist"}},"extract":"Yann Benoist is a French session guitarist, performer, singer, composer, conductor, and arranger.","extract_html":"

Yann Benoist is a French session guitarist, performer, singer, composer, conductor, and arranger.

"}