Reddit reviews Hanna Instruments HI 190M-1 Magnetic Mini-Stirrer with Speedsafe, 110/115 V Power Supply
We found 6 Reddit comments about Hanna Instruments HI 190M-1 Magnetic Mini-Stirrer with Speedsafe, 110/115 V Power Supply. Here are the top ones, ranked by their Reddit score.
HI 190M-1 magnetic mini stirrer with magnetic mini-stir bar, and built-in Speedsafe speed limiter control, not to exceed 1,000 revolutions per minute (rpm), even when sample container is removedUnit speed range of 100 to 1,000 rpm, and 1 liter (.26 gallons) maximum stirring capacityOverall dimensions are 45 x 120 x 120 mm/1.8 x 4.8 x 4.8 inches (H x W x D), stir bar is 25 x 7 mm/ 0.98 x 0.28 inches (L x W), and the instrument weighs 640g (1.4 lb.)Comes with a plastic, chemical-resistant [acrylonitrile butadiene styrene (ABS)] coverMeets International Organization for Standardization (ISO) 9001 standards, and comes with a one-year limited warranty
>[E]very chem lab should have a good number of 150-250 mL glass beakers on hand.
>Some large size glass test tubes will come in handy, and those are relatively cheap.
>Depending on what type of reactions you want to do, you may find it good to have petri dishes handy, either glass or plastic (they'd be good for crystallization experiments, certainly).
>You should definitely have a few pipettes, either the cheap plastic 3 mL kind, or if you can afford it, nicer glass droppers (Pasteur pipettes are fun to use, albeit fragile and hard to clean).
>You will definitely need a graduated cylinder, maybe a few, in different sizes, glass or plastic (definitely glass if you're planning on working with any strong acids or bases, or using organic solvents).
>You will find a scale, accurate to at least a tenth of a gram, to be an invaluable tool.
>Some litmus or pH paper will be useful.
>Oh, and a thermometer, of course!
>If you want to dispense precise quantities of any liquid, a 25 mL burette will be your best friend, though it's certainly not necessary.
8.a) This one seems relatively straightforward. Finally!
>a volumetric flask, for making precise stock solutions.
>A few Erlenmeyer flasks, for mixing things.
>A volumetric pipette, for making equal aliquots.
>Oh, and if you just want your lab to be that much more mad sciencey, you could have a distillation flask and a few condensation tubes bubbling in the background. If you want to make a significant investment, you could get a magnetic stirring platform, maybe one with good heating powers. Also great for whisking up an egg, or keeping some batter moving while you make pancakes. Pricey, though.
Thanks a ton for putting together that list!
EDIT: Formatting
Northern Brewer is having a sale on their stir plate. Personally, I own this one. I love it and use it all the time when making starters.
I've been debating getting just a magnetic stirrer like this one
http://www.amazon.com/Hanna-Instruments-Magnetic-Mini-Stirrer-Speedsafe/dp/B002OSX2Q0/ref=lp_318023011_1_4?s=industrial&ie=UTF8&qid=1451487697&sr=1-4#customerReviews
One of these. Although I only paid $75 for mine.
Magnetic stirrer thingy would last longer and make less noise. :)
Edit: One of these
Found a nice mini magnetic stirrer on amazon for ~$85. Would be a super nice convenience but I'll continue to live without cause I'm a cheap SoB.
I should mention that I'm old school despite being new though too. No ultra sonic or even a frother. I just give em a good shake and let them cure over time (sometimes I'll do a hot water bath but have been even too lazy to do that lately). Then again, that's what happens when your closet looks like this (ready to vape juices) and if you ever want more flavors. Yes my caps are off at the moment, happens once a week for a day.