Author Topic: Basic lab - top 10 items on a limited budget?  (Read 715 times)

Tsathoggua

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Re: Basic lab - top 10 items on a limited budget?
« Reply #20 on: June 05, 2011, 08:29:43 PM »
Teflon paint? do tell.....what is this.....I have been wondering how I could teflon-coat the inside of an acrylic tube to make a bioreactor for farming certain parasites of certain grains........to stop the culture aggregating on the walls of the container. 
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Shake

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Re: Basic lab - top 10 items on a limited budget?
« Reply #21 on: June 05, 2011, 11:28:20 PM »
yes i would love some details on this too.. like how they coat pots and pans with teflon? then how to do it at home..

no1uno

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Re: Basic lab - top 10 items on a limited budget?
« Reply #22 on: June 06, 2011, 09:35:22 AM »
Boiling flasks (FB & RB) - however many you can afford
Flasks Erlenmeyer - " " " "
Shitloads of Beakers
Fractionating Column(s)
Addition/Sep Funnel(s)
Claisen Adapter
Vac Adapters
Heads - Splashproof & Distillation
Magnetic Stirrer/Hotplate
Stirbar(s)
KECK CLIPS
Good book (for tedious distillations also nicotine patches for when smoking is a fucked idea)
Fridge
Buckets (mix of metal & plastic)
Boxes and trash bags (you got to get rid of all that junk some-fucking-where and your bin is a dumb place to put it)
Bottles*
CURTAINS (you'd never believe how many people get busted by not having/changing curtains by all means, put them on the outside of ply, but boarded up windows = lowlife dealer/drug lab anywhere you live/work)

"Lastly" 100-10,000 acres - cause nosey neighbours and bad neighbourhoods are not your friend (it is in quotes as if you are at all serious, this won't be all you need by any stretch of the imagination, glass is addictive and an expensive fucking habit to boot).

* everyone uses the fuckers, have kids and you'll have brown glass bottles everywhere, also plastic pill-bottles (if they don't have a recycling number, they are generally fluoropolymer lined)  - wash & reuse

It doesn't matter what you can afford, tis what you need that matters. Skimping on safety (or security) - well you get what you pay for, or pay for what you get (trust me). Dodgy shit sets my teeth on edge, people get hurt/poisoned by what you do and all of a sudden a dangerous situation just got far fucking worse.
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salat

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Re: Basic lab - top 10 items on a limited budget?
« Reply #23 on: June 06, 2011, 11:42:58 AM »
Actually no one mentioned fire extinguishers.  I bought those first but couldn't recall the specific type you need for chemical fires when I was making my list.  A bucket of sand is handy too.

One at auction was almost a hundred with shipping and then found a couple at the thrift store for habitat for less than 20 bucks each.


re teflon paint google xylan coating.  No paint would stick well enough - must be baked.  Been wondering if microwave would work for setting coating... my chemistry microwave is out of commission though.

Salat
« Last Edit: June 06, 2011, 11:50:41 AM by salat »
Salat

Tsathoggua

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Re: Basic lab - top 10 items on a limited budget?
« Reply #24 on: June 06, 2011, 04:44:11 PM »
Depends entirely on the nature of the chemical being on fire...

Metals are a particular problem, they are very, very difficult to put out, due to the high combustion temperature which will rip apart CO2, and halons, in many cases.

Some reactives are just nigh on impossible....ever work with peroxygen difluoride or chlorine trifluoride and your fume hood better be 'ten miles in the middle of nowhere and a sodding fast pair of legs', that stuff will burn right through sand, concrete, metal, or anything else for that matter.

Might be worth loading a fire extinguisher with high pressure argon, or a heavier noble gas if you are rich. Hell, even a helium tank could be helpful if ever working with those odd oxidizers are so extremely reactive that they burn through anything short of ten feet of solid concrete (ClF3 in fact, might do just that, if you are using more than a little bit of the stuff) if your working with anything truly nasty.

My point is-be aware of what that fire extinguisher is rated for, there are things that will tear CO2 apart, liberating O2 to fuel the blaze, or turn 'inert' halons into deadly gases, or even set the sand you just tossed on there on fire.

Whilst none of us are likely ever to work with ClF3, I recall reading of a spill of this stuff that burnt through a foot of concrete and almost a meter of the rock down below it.

http://www.bunkertours.co.uk/germany_2004.htm they called it N-stoff in the war.
« Last Edit: June 06, 2011, 04:52:58 PM by Tsathoggua »
Nomen mihi Legio est, quia multi sumus

I'm hyperbolic, hypergolic, viral, chiral. So motherfucking twisted my laevo is on the right side.

lugh

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Re: Basic lab - top 10 items on a limited budget?
« Reply #25 on: June 06, 2011, 05:42:42 PM »
Since combustion is a free radical reaction, halon fire extinguishers are superior  8)

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Trips

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Re: Basic lab - top 10 items on a limited budget?
« Reply #26 on: October 31, 2011, 08:42:34 PM »
I must say, I would believe the single most important piece of equipment to be a rotovap.  I would stir using a twig in mason jars over the stove if it would save me from the days of tedious stinky and risky evaporation.

Not to mention you can reuse solvent.  No stink.  No time.  No fuss.  No waste. 

ROTOVAP FTW!

RoidRage

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Re: Basic lab - top 10 items on a limited budget?
« Reply #27 on: October 31, 2011, 09:08:44 PM »
While a rotovap is simply awesome, it's definitly not a ''TOP 10 items on a limited budget''. You can accomplish about the same thing by using a vacuum distillation setup anyways ;). A 24/40 glassware kit is essential for serious SAFE organic chemistry, a rotovap is not  ;)

tryl

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Re: Basic lab - top 10 items on a limited budget?
« Reply #28 on: February 02, 2012, 01:49:26 PM »
on a totally limited budget, bear minimum, for me.

condenser
rb & fb flask - 500ml
3 neck fb one, 500ml
claisen and distillation adapters
sep funnel
buchner + filtration flask
stirrer
a bunch of petri dishes, small bottles and other unassorted crap lying around that you often find, by necessity, some creative use for
pressure cooker

plastic labware is great & cheap.
"In the words of Archimedes, give me a lever long enough and a place to rest it... or I shall kill one hostage every hour."

Vesp

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Re: Basic lab - top 10 items on a limited budget?
« Reply #29 on: February 02, 2012, 04:08:10 PM »
What sort of plastic labware?
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lugh

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Re: Basic lab - top 10 items on a limited budget?
« Reply #30 on: February 02, 2012, 05:40:19 PM »
Quote
What sort of plastic labware?

It depends on the application, but polyethylene, polypropylene and polytetrafluoroethylene are all often used in labware  8)
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Vesp

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Re: Basic lab - top 10 items on a limited budget?
« Reply #31 on: February 02, 2012, 09:18:59 PM »
I mean, what type of plastic labware is useful? Plastic beakers, graduated cylinders, etc?


Plastic is obviously very limited in function, so I was just wondering what ones were useful.
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pyramid

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Re: Basic lab - top 10 items on a limited budget?
« Reply #32 on: February 02, 2012, 11:23:57 PM »
It really depends what chemistry you do, but I don't think plastic beakers/erlenmeyers are good for anything other than holding a waste liquid such as washes from workup. I would not be comfortable using the plastic ware over and over, seeing as the few plastic items I have owned got stained and who knows what leaches in/out.
Plastic graduated cylinders can occasionally come in handy for non aggressive liquids. Plastic sep funnel....no thanks. I also don't like how you cannot see cleanly into the liquid the vessel is holding. Plus you can't heat anything in plastic.

Of course, it's super cheap and it CAN be useful every now and again. It does not hurt to have some in addition to glass, just in case.

PTFE ware is another story! But I doubt many need, for example, a PTFE round bottom flask.

tryl

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Re: Basic lab - top 10 items on a limited budget?
« Reply #33 on: February 03, 2012, 08:29:54 AM »
HDPE too.

as you can imagine, is not very durable.

a disposable single use meth lab, lol.

but its real cheap, so..

and yea, it depends on the kind of chemistry you do, too.

i think i first heard/read about this (plastic) in total synthesis II, so strange you should find it strange.

« Last Edit: February 03, 2012, 08:33:40 AM by tryl »
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Dr. Tox

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Re: Basic lab - top 10 items on a limited budget?
« Reply #34 on: February 03, 2012, 06:53:23 PM »
Dreaming: A hill. A cleared killing field. Powerful & accurate weaponry. Mines & Grenades. Piezo, IR & motion detection. :P

If you can swing it, a few thousand Watts of CO2 laser. You can mod an xbox kinect robot to find, track & kill moving things.

A well made tunnel to something nearby (canyon, river) by which one can escape and flush materials.

Then everything comes after.

In reality, yeah, a standalone house in the woods & some glass.  Oh, and better get those aforementioned curtains. :P
« Last Edit: February 03, 2012, 06:59:06 PM by Dr. Tox »
Alimentary, dear Watson; I had a gut feeling.