[rayjay]

Sorry but I can't answer that as it may not be a pure product. The ammonium chloride I have is lab grade from a pharmacy.
You certainly don't need that much as my small bottle of ammonium chloride lasted for over a decade and I'd guess there was probably only about an ounce or two in it.
Why don't you check out local stores for liquid household ammonia? I switched to that when my ammonium powder was near gone.