It is 'nice' to have borosilicate bottles that can withstand thermal shock, and look pretty all in a row,
but I read https://en.wikipedia.org/wiki/Container_glass that
soda-lime bottles of a particular formulation are preffered for lower dissolution rate of glass into liquid.
Is it true ?
Is it significant ?
Do we care ?
I have not bought any glass storage bottles other than
two 1 gallon demijohns (£5 ea.) to stockpile drain unblocker sulphuric acid,
six 30ml amber borosilicate bottles with pipettes (£1 ea.) for test reagents
twenty 2ml borosilicate vials (£2 total) for samples.
I use miscellaneous ex-food product bottles and jars from the kitchen.
At first I wanted to have a beautiful matching set of 'proper' storage containers,
but now I like having an ecclectic collection - it makes finding stuff quicker,
I look for chemicals by jar/bottle and size/shape then only a few labels to check.
Last, but not least ... I hate the idea of paying more for a container than its contents.
However, partly for the look, partly for convenience and mainly for school chemistry nostalgia,
I would like a set of bottles with ground glass stoppers and etched labels, as in the sixth photo' above.
But I would not pay the current going price.
For no particular reason, I'm keeping my chemistry hobby spending at £1 per callendar day average ... £365.25 / year.
(£1/day for nearly four years = nice chemistry set )
A nice set of bottles would be a few months of my 'allowance'.
So as much as I would like to, I shall not be joining the group buy.
... unless costs are a lot less than I expect
P.S. Dr.Bob, our resident equipment supplier, has mentioned that storage bottles are expensive
BUT
are occasionally availble at massive discount prices - if you keep looking.
I would add my name to a list of members willing to make a quick decision on a bulk buy at the right price.
but if the bulk purchase was in USA then I suspect that the postal costs would be ridiculous,
plus I'd have to pay tax.
Postal costs from China are incredibly low and I've never been taxed on anything from China,
whereas EVERYTHING from USA gets taxed, with a hefty 'handling charge' for the postal service providers
I one nice borosilicate 90mm petri dish (to match filter papers for my Buchner funnel)
and many cheap disposable 35mm plastic petri dishes - which save on washing up
Some eBy sellrs list petri dishes as just 'glass' whereas they are actually borosilicate,
e.g. I bought mine here https://www.ebay.co.uk/itm/60mm-Glass-tissue-petri-dish-cult...
[Edited on 24-2-2018 by Sulaiman] |