Is the alcohol sterile?
Isopropyl 70% meets the USP requirements for rubbing alcohol. It is pharmaceutical grade and has disinfectant properties.
Does the alcohol Isopropyl 70%, 4 litre package contain latex?
It does not contain latex.
What is the main difference between 70% & 90% alcohol?
Many disinfectants contain 70% alcohol; 90% could be considered too strong for occupational reasons and could represent more of a fire hazard. The 70% may be considered an antiseptic cleanser and surface sanitizer and now, is also a natural health product in Canada.