A jug of vinegar can be bought from Fortunato in Draynor Village after starting the Rag and Bone Man quest.
i really dnt know
Laymen terms for 1part vinegar 3 parts water
Kidney Damage
No
NO
The low pH of the vinegar will damage the root system of the plant causing either temporary or permanant damage (death).
If your talking about baking soda and vinegar -- NO --
No
No. Vinegar is an acid, and acids will damage the enamel of the tooth over time.
Yes it will eat through the finish
How much we talking about? In usual doses, no.