The other day the executor of my pal Dave's estate called me. He said he'd found another gun laying around, some more ammo and a quart bottle of Hoppe's No. 9 cleaning solvent. I remembered seeing the bottle of solvent sitting around at Dave's over the years. Anyway, I made arrangements to go over and pick these items up.
The Hoppe's is old. It's in a glass jar, the label is disintegrating. My guess is it dates from the 1970's. He didn't use it up very fast, since he didn't shoot very often. I had some gun cleaning to do last night, so I thought I'd use some of the stuff from this old bottle. I've got about a quart and a half already, much newer, in plastic jugs. I figured I might as well use up the old stuff first. Right away, I could see that the color and odor were different. Which got me to wondering, does this stuff go bad with age?
Next, I looked at the label. Where it actually listed ingredients. Including a chemical called nitrobenzene. Then I looked at the label on a new jug, it doesn't list the ingredients; it only says it contains kerosene and caution is urged because it's flammable. Which lead me to look up nitrobenzene and I discovered that it's a caustic chemical that is thought to be carcinogenic. Then I looked online to see if nitrobenzene is still an ingredient used in Hoppe's No. 9 and it is not in the ingredients that are currently used. So maybe that's why it looks and smells different than the contemporary formulation.
The Hoppe's is old. It's in a glass jar, the label is disintegrating. My guess is it dates from the 1970's. He didn't use it up very fast, since he didn't shoot very often. I had some gun cleaning to do last night, so I thought I'd use some of the stuff from this old bottle. I've got about a quart and a half already, much newer, in plastic jugs. I figured I might as well use up the old stuff first. Right away, I could see that the color and odor were different. Which got me to wondering, does this stuff go bad with age?
Next, I looked at the label. Where it actually listed ingredients. Including a chemical called nitrobenzene. Then I looked at the label on a new jug, it doesn't list the ingredients; it only says it contains kerosene and caution is urged because it's flammable. Which lead me to look up nitrobenzene and I discovered that it's a caustic chemical that is thought to be carcinogenic. Then I looked online to see if nitrobenzene is still an ingredient used in Hoppe's No. 9 and it is not in the ingredients that are currently used. So maybe that's why it looks and smells different than the contemporary formulation.