k22fan said:
Rick C.,
Hoppe's #9 still contains ammonia. I do not have a new Hoppe's #9 bottle handy to double check but if I recall correctly its contents list includes ammonium hydroxide which is ammonia diluted with water. Hoppe's #9's Material Safety Data Sheet lists ammonium hydroxide as an ingredient. You can read it here courtesy of Brownell's http://www.brownells.com/userdocs/MSDS/699-003-022_.22%20RIFLE%20CLEANING%20KIT%20-%20593_default.pdf
Hi,
k22fan, thank you, and I stand corrected, as I was relying on the labels around here, not the MSDS. But now being curious as well, I dug into my Hoppe's stash. There's about an ounce or so left in my last quart bottle of "real" stuff, and two quart bottles of differing newer vintages. This is what I read:
1. Called Hoppe's Nitro Powder Solvent No. 9 (Notice name's been changed on the current product in the pictures to Hoppe's No. 9 Solvent)
Made by Frank A. Hoppe Div, Penguin Industries, Inc., Parkesburg, PA
Contains: nitrobenzene, ammonia, denatured ethanol and kerosene.
This is my oldest jug, and the "real" stuff according to some. It takes out copper fouling as well as the newer Bench Rest 9 Copper Solvent in another bottle.
2. Called Hoppe's Nitro Powder Solvent No. 9
Made by Frank A. Hoppe Div, Penguin Industries, Inc., Coatesville, PA
Contains: ammonia, denatured ethanol and kerosene.
This will do ok on copper, though not as good as the product labeled Copper Solvent.
3. Called Hoppe's Nitro Powder Solvent No. 9
Made by Hoppe's, A Division of Michael's of Oregon, Co., Coatesville, PA
Contains: kerosene.
This is the newest jug, and I haven't opened it, but I suspect it won't do much on copper, as that would be bad for sales of their dedicated copper solvent products. I suspect a toss up between this version and good ol' home brew, aka Ed's Red, which I use whenever copper's not on the menu of stuff to clean out of a barrel. I've got janitorial strength ammonia for copper fouling. Look for Ace 1qt Ammonia (10183A) at your friendly local Ace Hardware store. It's a 10% solution, so use it outdoors!
FWIW, the copper solvent is the newest product I have:
4. Called Hoppe's Bench Rest 9 Copper Solvent
Made by Hoppe's, A Brunswick Company, Coatesville, PA
Contains: kerosene.
MSDS: http://www.hoppes.com/Hoppes/files/67/678cd0a0-7530-40c6-9c7b-62b85bdef363.pdf
Interesting that ammonia's what gets the copper out, and there are two varieties in this product per the MSDS, but it's not listed as an ingredient on the bottle. To me, it seems to work about the same on copper fouling as the old "real" formula.
Rick C