I realize this is 9yr old thread but, in a general sense, chemical composition and first aid needs to known prior to using any chemical. After injury it is often to late.
White Ox is extremely caustic.
Composition: Oxalic Acid, Ammonium Fluoride, and Hydrogen Fluoride
If you wish to find the ingredients used in any product just search the commercial name + MSDS.
https://white-ox.com/xcart/WHITE-OX Rust Remover Liquid 32oz SDS.pdf