Q&A: Is it typically safe to apply heat to a vacuum filtration flask, with only the sidearm left open?
Question by Chem Kid: Is it typically safe to apply heat to a vacuum filtration flask, with only the sidearm left open?
I am considering distilling some 70% (mass) store-bought ethanol with a somewhat makeshift apparatus. The top is stoppered with a rubber stopper, and the sidearm is connected to some tubing which runs down a chilled receiving flask. I’d like to make sure that there isn’t some obvious flaw that I’m overlooking.
Best answer:
Answer by Caligula
yeah it should work
maybe the rubber will get attacked by the ethanol vapors over time
maybe the tubing too depending on its material
but if you manage to get a vacuum filtration flask, why cant you get a proper laboratory condenser
What do you think? Answer below!
What is the additive acts as a heat retainer for swimmimg pool water, and who supplies it?
Question by Grabee: What is the additive acts as a heat retainer for swimmimg pool water, and who supplies it?
I believe there is such a product, certainly available in the USA, which comes in a ‘floating fish’ dispenser lasting up to a month or two.
Best answer:
Answer by Mr. KnowItAll
There is no such thing.
What do you think? Answer below!
Q&A: How hot does a Eletro-Tek soldering iron for home projects heat up to?
Question by bbygrl37n05: How hot does a Eletro-Tek soldering iron for home projects heat up to?
Best answer:
Answer by Teddy Bear
Soldering Irons Recalled by Custom Accessories
PRODUCT: Soldering Iron – Custom Accessories Inc. of Niles, Ill., is recalling about 20,000 Electro-Tek soldering irons. These soldering irons were sold under the Electro-Tek brand name, and have part number 10764W. Both the brand name and part number are written only on the packaging. The soldering iron has a black plastic handle and is packaged on a white card with black, yellow and red accents. There is a silver label on the soldering irons with “UL” written in red. They were sold exclusively in Walmart stores nationwide between October 1998 and November 1998 for about .
PROBLEM: The internal connections in the soldering iron are not insulated, presenting a shock and electrocution hazard.
INCIDENTS/INJURIES: None reported.
WHAT TO DO: Consumers should stop using the soldering iron immediately and return it to Walmart for a refund or a replacement soldering iron. For more information, consumers should call Custom Accessories Inc. toll free at (800) 962-6676 between 8:30 a.m. and 5:00 p.m. CST Monday through Friday. Electro-Tek soldering irons with different part numbers are not affected by this recall.
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