| Pages:
1
2 |
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
Kitchen Hot Plates
Hi,
I need a hot plate, but as I am on a very tight budget, I was thinking of just using a kitchen hotplate off eBay to start with. Does anyone have
any experience with these el cheapo hotplates, or is it worth investing in a more expensive one, and leave less cash for other stuff?
Thanks,
Ben
Dioxygen Difluoride - FOOF the world.
|
|
|
Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
Member Is Offline
Mood: No Mood
|
|
They work okay for heating, they just aren't very stable in their temperature control (in my experience anyways) but for the most part, they do an
okay job, considering the cost. You might be able to snag a real one on eBay or on the forum for a reasonable (albeit higher) cost....
I have an older PMC hotplate stirrer combo that I'm willing to give away. All I ask is that whoever wants it pays the shipping, which... Given its
heavy duty build, might be quite a bit. If love to give it to somebody here but I'm afraid of how much shipping would be...
|
|
|
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
How Much for shipping to the UK?
Dioxygen Difluoride - FOOF the world.
|
|
|
Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
Member Is Offline
Mood: No Mood
|
|
Ill have to weigh the darn thing, the body is very heavy, but it lasted me for years before I bought my new one. In the UK... Ouchhhh... Ill check
It does look used, but it's tough as nails.
|
|
|
chemcam
Hazard to Others
Posts: 423
Registered: 18-2-2013
Location: Atlantis
Member Is Offline
Mood: I will be gone until mid-september, on a work contract.
|
|
I would be interested as well. I'm in USA, specifically Oregon.
|
|
|
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
Oi, This one's Mine. By the way, Do you have any idea as to why it would be so
heavy. Really big magnets?
Dioxygen Difluoride - FOOF the world.
|
|
|
Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
Member Is Offline
Mood: No Mood
|
|
Okay, well I will weigh it later tonight and then see what costs you guys would be looking at. It's been sitting on my shelves for almost a year
unused now, the only reason I've not put it up on SM yet is that I'm afraid of shipping costs. US would be cheaper than overseas but ill let you know
either way.
|
|
|
Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
Member Is Offline
Mood: No Mood
|
|
You've got dibs on it no worries, just wait until I look into shipping though, you may change your mind. The body is made of cast metal(not aluminum).
It's just built really heavy duty for some reason.
|
|
|
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
Industrial usage maybe?
Dioxygen Difluoride - FOOF the world.
|
|
|
chemcam
Hazard to Others
Posts: 423
Registered: 18-2-2013
Location: Atlantis
Member Is Offline
Mood: I will be gone until mid-september, on a work contract.
|
|
I know you have first dibs. I'm just letting my interest be known. I currently use a kitchen type hot plate and it works like it should but
temperature control is awful.
|
|
|
Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
Member Is Offline
Mood: No Mood
|
|
It came from a lab closing sale (government operated oilseed research lab)
Edit: the weight is a bit under 10lbs. With packing and all, I'd say perhaps around 11ish lbs. I still need to determine costs, for anyone interested
u2u me your address (or approximate address) and I can give a fairly good idea of the cost.
[Edited on 11-4-2013 by Mailinmypocket]
|
|
|
elementcollector1
International Hazard
Posts: 2684
Registered: 28-12-2011
Location: The Known Universe
Member Is Offline
Mood: Molten
|
|
Hey, I'm in Washington!
Already borrowed a hotplate from the school, so...
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
|
|
|
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
With these kitchen hot plates, the problem is temperature control. My guess is they are passing AC straight through a variable resistor into some
nichrome wire, potentially with some very basic logic to maintain a constant temperature. Do you think that a homebrewed temperature controller would
be hard to design?
Dioxygen Difluoride - FOOF the world.
|
|
|
chemcam
Hazard to Others
Posts: 423
Registered: 18-2-2013
Location: Atlantis
Member Is Offline
Mood: I will be gone until mid-september, on a work contract.
|
|
Mine certainly does not maintain any temperature it fluctuates up to a certain point then switches itself off until it reaches another set point and
goes back on. Its never at one temp more than a minute so I am constantly adjusting the knob. I would think if I installed a more sentitive pot and
temperature gauge it would greatly improve its functionality. I knew that for $15 it would suck but it is barely better than holding a magnifying
glass up to the sun.
|
|
|
Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
Member Is Offline
Mood: No Mood
|
|
To the UK...I think You might be better off on eBay or with a good kitchen hotplate! Wow... Ridiculous price, $82.11 for regular parcel, after that?
$142.00 for 4 day delivery.
Of course, if you want it it's yours. I personally wouldn't though, that's the smallest best packed box I could make and the shipping seems very high.
[Edited on 12-4-2013 by Mailinmypocket]
|
|
|
Sciocrat
Harmless
Posts: 36
Registered: 30-3-2007
Member Is Offline
Mood: Scientifically curious
|
|
I use a kitchen hot plate for most of my experiments, however there is almost no temperature control, except for manual turning on and off, along with
monitoring the temperature closely. I would love to have a real lab hot plate, but these are unfortunately very expensive where I live.
|
|
|
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
I think I'll leave it. Thanks for your time. With these kitchen hotplates, do they have a microcontroller?
If so, it shouldn't be hard to reprogramme to stop it cutting off? Has anyone here tried anything like this?
Dioxygen Difluoride - FOOF the world.
|
|
|
Finnnicus
Hazard to Others
Posts: 342
Registered: 22-3-2013
Member Is Offline
|
|
Oh man, I forget the guy, but someone had 'the best Hotplate' or something. Turned out to be an upside down iron (like for clothes), anyone know who?
I loled.
Edit: was the 'worlds most famous', I nearly fell off my chair.
[Edited on 12-4-2013 by Finnnicus]
|
|
|
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
Ha, suppose it would work.
Dioxygen Difluoride - FOOF the world.
|
|
|
confused
Hazard to Others
Posts: 244
Registered: 17-3-2013
Location: Singapore
Member Is Offline
Mood: tired
|
|
...i dont mind it, but my parrents don't approve of me spending so much cash(even if its just shipping) on my hobby
Btw, what would the shipping be like to singapore?
|
|
|
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
I have a cashcard from HSBC, and have my bill sent by email. Thus way, my parents have no say on what I can buy with my own money (I.e, they don't
know). You might want to do the same, confused. You can get one when you are 13. They are awesome
Dioxygen Difluoride - FOOF the world.
|
|
|
Carharttguy
Harmless
Posts: 8
Registered: 12-4-2013
Member Is Offline
Mood: No Mood
|
|
If you're just a starter, it shouldn't be to expensive. Altough it's indeed harder to control (or maintain) temperature.
I got my first boiling plate from a second hand store, paid 8 euros for it. It does the job  (but I'm also a beginner)
|
|
|
confused
Hazard to Others
Posts: 244
Registered: 17-3-2013
Location: Singapore
Member Is Offline
Mood: tired
|
|
I have one, but the statement still comes via mail at the end of the month...thats when they kick up a fuss
...also, im sort of hesitant to spend so much cash...already used up $200+ on a fractional distillation setup...shipping's a killer
|
|
|
DangerousStudent
Harmless
Posts: 17
Registered: 11-4-2013
Location: England
Member Is Offline
Mood: Electrolytic
|
|
If you sign up for Internet banking, I think you no longer receive a statement. I'm also building a distillation rig. I am hoping to distill
limonene.
Dioxygen Difluoride - FOOF the world.
|
|
|
confused
Hazard to Others
Posts: 244
Registered: 17-3-2013
Location: Singapore
Member Is Offline
Mood: tired
|
|
you mean something like this?
part 1 http://www.youtube.com/watch?v=fVZRnVKqkgw
part 2 http://www.youtube.com/watch?v=bMFt1lOmlQ4
what do you think the anti-foaming agent is?
|
|
|
| Pages:
1
2 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
