I'm very unlikely to take the words from a conspiracy theory as holding any truth.

The thing with conspiracy theories and their explanations, is they make sense to uneducated or gullible people, their most often targeted audience.

Chlorine/Chloride: chlorine which is used in the production plastics and chemicals. Chlorine, deadly gas.

Sodium, a metal that reacts violently with water. Important in the chemical, petro and textile industries.

Put them together and...

NaCl!

Sodium Chloride is also known as table salt. A necessary compound for life on this earth.

Quite literally, ALL minerals and elements are by themselves quite a bit different, but once through a chemical reaction, can be very helpful or life sustaining.

So color me skeptical when folks try to use simply misleading "facts" and applying them incorrectly.