Historical clue formulations

• Salt's formula — 2026-06-21
• It dissolves in H2O — 2025-04-10
• Table salt, to a chemist — 2025-04-08
• Salt, symbolically — 2024-04-14
• Table salt, to a chemist — 2023-02-19
• It dissolves in H2O — 2022-01-20
• About .4% of the weight of the human body — 2020-02-28
• Seawater compound — 2018-11-18
• It dissolves in H2O — 2018-01-21
• Deicer formula — 2017-03-04
• It reacts with H2SO4 — 2016-12-09
• Salt, chemically — 2016-10-31
• Deicing formula — 2016-02-06
• Table salt, to a chemist — 2015-12-02
• Salt, chemically — 2015-08-19
• What a chemist brings to the table? — 2015-02-26
• Chemical compound often labeled "S" — 2014-12-14
• Salt, chemically — 2014-08-27
• Curing stuff, symbolically — 2013-05-18
• Crystal on the dinner table? — 2011-10-30
• Table salt, chemically — 2011-09-20
• Common crystals, chemically — 2010-10-06
• Salt, symbolically — 2009-12-02
• Table salt, chemically — 2009-09-30
• Halite, chemically — 2007-11-10
• Shaker formula — 2007-07-21
• Shaker formula — 2007-05-20
• Chemist's salt — 2005-07-14
• Table salt, to a chemist — 2004-06-02
• Table salt formula — 2003-07-02
• It dissolves in H2O — 2002-06-13
• Table salt, to a chemist — 2001-09-03
• Salt, to a chemist — 2001-07-04
• Table salt, symbolically — 2000-04-30
• Table salt — 1998-12-09
• Part of seawater — 1998-06-12
• Salt — 1997-12-24
• Chemist's condiment — 1997-10-17
• Frequent H2O accompanier — 1997-06-12
• Salty letters — 1996-04-12
• Ocean compound — 1996-02-04
• Salt — 1996-02-01
• Table salt — 1995-12-20
• Table salt — 1993-11-27