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vibbzlab
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Suggestions of getting a lab heating source
I am really into my lab nowadays So I need a heating source,I was thinking of a butane heater so I checked around the markets in my place in India
and couldnt find any. I looked inany YouTube videos and found this kind of thing in many people. I was wondering if I should use this or something
else should be used like electric or something else.
If you have suggestions please respond.
It would be also very helpful for me if you can provide me with links of those things I can get to India economically and quality wise good too.
Amateur chemist. Doctor by profession
Have a small cute home chemistry lab.
Please do check out my lab in YouTube link below
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G-Coupled
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I suppose it's kind of like a modern take on a Bunsen burner.
How are you with wires and electronics, kind of thing? You might be able to cobble something quite quite usable and safe from some simple circuitry
and some NiChrome heating elements etc.
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vibbzlab
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I am not into electric stuff
Amateur chemist. Doctor by profession
Have a small cute home chemistry lab.
Please do check out my lab in YouTube link below
This is my YouTube channel |
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Sulaiman
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There are made-in-India heating mantles
https://www.ebay.co.uk/itm/Heating-Mantle-500mL-220V-or-110v...
https://www.ebay.co.uk/itm/Heating-Mantle-For-Flask-220-V-Ca...
this would enable you to do distillation, refluxing etc.
Also made-in-India hotplate-stirrers
https://www.ebay.co.uk/itm/Magnetic-Stirrer-With-Hot-Plate/1...
For test tube scale I now use IKEA Glimmer tealight candles as a heat source ,
equivalent to about 30 Watts of heating ... any candle with a clean burning flame is ok.
Very nice YouTube channel ... congratulations !
P.S. that butane gas burner that you pointed to seems to be about 580 W for 40 minutes.
[Edited on 26-11-2019 by Sulaiman]
CAUTION : Hobby Chemist, not Professional or even Amateur
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j_sum1
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Noisy but good.
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vibbzlab
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Thank you sulaiman
Also I am not sure if I should use a burner or electric one
Amateur chemist. Doctor by profession
Have a small cute home chemistry lab.
Please do check out my lab in YouTube link below
This is my YouTube channel |
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arkoma
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One of the best purchases I ever made was for a used Corning hotplate/stirrer on eBay. Yeah, it was a hundred bucks, but in hindsight should have been
one of the first things i saved up for and bought
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
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draculic acid69
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Candles for test tube size stuff and anything bigger you should get a heating mantle/stirrer.unless your doing high temperature stuff (250'c +) just
buy a blue/white cheap mantle off of eBay or Amazon
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B(a)P
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IMHO best to avoid the open flame.
My preference is always hotplate with stirrer, but that suits my chemistry.
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Corrosive Joeseph
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It is virtually impossible to do all the chemistry you will want to without being able to heat and stir at the same time. The combination
hotplate/stirrer is the single most important piece of lab equipment.
After that, an old deep fat fryer hacked to a C-REX-100 will give you an oil bath with heating capabilities of 0-400c degrees for the price of about
€40...... Only a dememted lunatic heats flammable liquids with a naked flame but this is mad science so knock yerself out.
/CJ
Being well adjusted to a sick society is no measure of one's mental health
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Sulaiman
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I agree that heating anything more than a few ml of liquids other than water
(i.e. common/flammable solvents) with an open flame, is inviting trouble,
I also agree that continuous stirring is very important.
Although I've not tried a deep fat frier, it seems very useful and practical,
(I use oil in a cooking pot on a hotplate, but I don't know what oil would work to 400oC)
I use simple/cheap TRIAC based 'dimmer' eBay modules for controling the heating power of my cheap twin hotplate,(1500W and 750W)
and a (380W) diy heating mantle.
(even though I have a REX-C100 controller with various thermocouples and a functionally similar Eurotherm temperature controller).
P.S. it was recently pointed out to me the danger of an oil or sand bath used to heat volatile liquids;
The bath needs to be at a higher temperature than the liquid being boiled due to the thermal resistance of glass,
if the boiling flask does break then boiling liquid will drop into the bath which is at an even higher temperature,
causing rapid violent boiling ... not good to say the least.
Plan ahead for such an occurence.
[Edited on 26-11-2019 by Sulaiman]
CAUTION : Hobby Chemist, not Professional or even Amateur
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vibbzlab
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Ok I guess I should get a heating mantle or hotplate stirrer. Can I heat round bottom flask on flat magnetic hotplate?
Amateur chemist. Doctor by profession
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Dr.Bob
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Yes, using an oil bath to transfer the heat. This helps to even out the temperature, and allows a variety of flask sizes and shapes. You can also
use solid bbs, sand, water (for heating low bp organics) or other media, but oil is very common, cheap and easy. I use one often, along with soft
heating mantles, which are good for refluxing reactions or larger scales.
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Ubya
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Quote: Originally posted by vibbzlab  | | Ok I guess I should get a heating mantle or hotplate stirrer. Can I heat round bottom flask on flat magnetic hotplate? |
sure you can. water bath for low boiling solvents or to heat the flask to <100°C, an oil bath can go to 200°C or a bit more before starting to
smoke, if you need higher temperatures use a sand or liquid metal bath, but depends on the maximum temperature achievable by the hotplate.
you can't really control the heat input from an open flame, use them only for high temperature experiments
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vibbzlab
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Looks like I will get a hotplate with stirrer then .
I have looked around and found one in AliExpress
https://s.click.aliexpress.com/e/ojceeY3O
Amateur chemist. Doctor by profession
Have a small cute home chemistry lab.
Please do check out my lab in YouTube link below
This is my YouTube channel |
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Sulaiman
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Its a matter of opinion but I think that 200W is only good for warming,
for a hotplate I'd want significantly more heating power.
CAUTION : Hobby Chemist, not Professional or even Amateur
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Yttrium2
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Don't some people use heat lamps? I forget the pros behind doing this
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vibbzlab
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So what power should I opt for
Amateur chemist. Doctor by profession
Have a small cute home chemistry lab.
Please do check out my lab in YouTube link below
This is my YouTube channel |
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G-Coupled
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I bought a used UK-manufactured (early-mid 80s,I'd guess) STUART brand hotplate /mag stirrer for about 40 EUR from an industrial surplus place I found
on the 'bay which I'm really pleased with. Aluminium hotplate.
IIRC, it's around 480W (240V) and produces temps at the plate of up to around 230C, if that gives you an idea.
In India, don't you maybe have some guys around who are good at repairing/hacking electronics who could knock you something up from old/scrap items?
I'd still say that an older, used lab quality hotplate is your best option, over the Chineseum ones around cheap these days.
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vibbzlab
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Yes cannot believe Chinese things. That's true
Amateur chemist. Doctor by profession
Have a small cute home chemistry lab.
Please do check out my lab in YouTube link below
This is my YouTube channel |
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B(a)P
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I recently purchased a cheap 250 W combined hot plate and stirer.
It has done about 100 h of use so far and no complaints.
I haven't required temps over 140 C, but it has got liquids into this range no problem at about 2/3 power, I am only talking small volumes though
<200 mls.
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draculic acid69
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The cons outweigh any pro's.
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draculic acid69
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What size glassware do you have?
500ml - 1 litre is what most of us have and the cheap Chinese heating mantles at 400w allow most of our needs to be met.
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vibbzlab
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Yea I use max 1L
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Please do check out my lab in YouTube link below
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sodium_stearate
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I use an old pump-up style Coleman model 502 gasoline-fired
camp stove.
"Opportunity is missed by most people
because it is dressed in overalls and it
looks like work" T.A. Edison
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