All Questions
Tagged with equipment physical-chemistry
11
questions
2
votes
1
answer
135
views
Trial by fire: Safely heating sand without it agglomerating?
Wikipidia quotes a melting point of 1713C for sand.
I went on the beach to get some sand. I assume it's a mix of all kinds of stuff.
The finality is to prepare a big pile of clean sand to use as ...
- 1,097
5
votes
1
answer
225
views
Detecting a gas molecule moving through a small pinhole
Suppose I have the four DNA base chemicals - thymine, adenine, cytosine, and guanine. Imagine I turn each of them into a gas, make a "cartridge" of the gas for each chemical, and then have a "pinhole" ...
- 447
4
votes
1
answer
481
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What is this device? (Constant level device?)
Found this in my lab on a random shelf (water quality lab). It is old enough that nobody knows where it came from. I think it's a constant level device. It has in- and out-flow connections, as well as ...
- 101
2
votes
2
answers
117
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Is there a way to counteract the problems with weighing hot objects?
I am currently performing an experiment in which it would be greatly beneficial to be able to accurately measure the mass of a hot object without waiting for it to cool. The current plan is simply to ...
0
votes
0
answers
81
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Wetting properties of FTO coated glass
I am trying to spin coat a layer of polymer+Quantum Dots on an FTO coated glass slide. My material is forming agglomerates at the edges of my slide. My polymer is PVK which has a conc of$\approx 4.5mg/...
- 501
0
votes
1
answer
189
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Best way to remove Aluminium from "silvered" glass?
Requirement is simple(!) - I have 30mm silvered glass balls that are originally Christmas tree decoration that I want to use in a very unconventional manner in a physics experiment. As far as I can ...
- 1,672
4
votes
0
answers
189
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How to minimize surface adsorption by choice of material?
I need to do buoyancy experiments in vapours consisting of organic molecules in air using a microbalance. This involves measuring the change in weight of a sealed glass sphere when exposed to the gas. ...
- 1,672
3
votes
1
answer
2k
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Household Melting Point Standards
I'd like to accurately calibrate a digital thermometer I'm building in the range of $50^\circ$ to $120^\circ$ Celsius.
I'm aware that one can buy various chemicals that have melting points in this ...
- 362
2
votes
1
answer
123
views
Does someone know the name of this equipment?
I think it is used to measure force or something like that. I broke it and have to buy a new one.
- 21
0
votes
1
answer
143
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Is there any way to use syringe pumpe in pumping flow
I want to use syringe pump to pump water at 0.82 ml/min for 30 min ? Is that possible ( I read some paper use that but don't know how ?)
- 19
23
votes
4
answers
55k
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what kind of suspension liquid should be used with ferrofluid (so it does not stain the glass)
Please take a look at the following video:
I am working on a new project, and I need to find whats the best liquid to hold ferrofluid inside the glass (or maybe even plastic) container, so that ...
- 341