cinderblock
Rising Star
- Merits
- 42
I've always been confused by this ordeal.
As soon as I took the freeze-preciptated dish out of the freezer, I placed a fan on it and let it dry. I saw a lot of white powder about five minutes in. And then I came back an hour later, and all that was left was this clear, grease residue on the dish. I'm assuming it melted before it could dry.
So should I add the naptha I poured out, freeze again, and repeat with the fan even closer? Before, I had the fan about three feet away. I guess this time I'll have it one foot away??
Also, how are people completely evaporating by room temperature, when it's melting like this? Is it because they live in colder places? I'm in Los Angeles, and the average temp here year round is 80-90.
EDIT: So far the suggestions from those I've inquired are vastly different... I'm confused as to which one is the right way to go...
1) Water contamination. I'm instructed to redissolve in warm naphtha and then perform three washes with just distilled water. <--- the concern with this method is that I've already performed the sodium carbonate wash + 2x wash with just filtered water. By the last wash with the filtered water, the naphtha was so clear, it was very difficult to make out the line that separated naphtha and water. I don't know how I'm supposed to wash it 3X with distilled water when I imagine the naph and water will be virtually indistinguishable at this point.
2) Just let it sit around for a week and scrape up the goo.
As soon as I took the freeze-preciptated dish out of the freezer, I placed a fan on it and let it dry. I saw a lot of white powder about five minutes in. And then I came back an hour later, and all that was left was this clear, grease residue on the dish. I'm assuming it melted before it could dry.
So should I add the naptha I poured out, freeze again, and repeat with the fan even closer? Before, I had the fan about three feet away. I guess this time I'll have it one foot away??
Also, how are people completely evaporating by room temperature, when it's melting like this? Is it because they live in colder places? I'm in Los Angeles, and the average temp here year round is 80-90.
EDIT: So far the suggestions from those I've inquired are vastly different... I'm confused as to which one is the right way to go...
1) Water contamination. I'm instructed to redissolve in warm naphtha and then perform three washes with just distilled water. <--- the concern with this method is that I've already performed the sodium carbonate wash + 2x wash with just filtered water. By the last wash with the filtered water, the naphtha was so clear, it was very difficult to make out the line that separated naphtha and water. I don't know how I'm supposed to wash it 3X with distilled water when I imagine the naph and water will be virtually indistinguishable at this point.
2) Just let it sit around for a week and scrape up the goo.
