1000ml Beakers that i touch explode

So i seem to be cursed because i have the great luck of constantly breaking 1000ml beakers. Just today I was drying up some iron oxide in a beaker and it just friggin popped. At 150C......
What a joke. How can it be that the vigreux i fixed myself by melting glass shards from bottles (not even boro) into the hole of a shattered finger holds up (done with a shitty torch it even has tons of cracks but no leakage...) but 1000ml beakers just explode in my hands on contact...

First 1L beaker i had exploded in my hands. It wasnt even warm or anything. It was on the hotplate for some time and then i poured off the liquid in it (Water) and let it cool. I had it in my hands (wasnt even noticably warm) and it just cracked when I added some tap water for cleaning.

What am i doing wrong. How can it be that nothing breaks for me no matter how badly i treat them but the 1L just friggin crack to hell.

Is there something like a prayer or ritual I am missing to keep 1L beakers from exploding.
And no im not using cheap craptastic beakers. First one was a schott, last one was a simax.
But some friggin how chinese crapglass 100-500ml beakers take the same stuff without even taking a scratch.
In my chemist time I only broke one thing that wasnt a 1L beaker :a vigreux (not the one i repaired that one was dead on delivery) But that one broke because a gosh darn metal bar dropped 1m on it.

6 1L beakers and counting.
I think i need to quit buying 1L beakers alltogether and just use flat round bottoms or erlenmeyers....

[Edited on 28-1-2018 by Deluxbert]

Quote: Originally posted by Deluxbert

So i seem to be cursed because i have the great luck of constantly breaking 1000ml beakers. Just today I was drying up some iron oxide in a beaker and it just friggin popped. At 150C...... What a joke. How can it be that the vigreux i fixed myself by melting glass shards from bottles (not even boro) into the hole of a shattered finger holds up (done with a shitty torch it even has tons of cracks but no leakage...) but 1000ml beakers just explode in my hands on contact... First 1L beaker i had exploded in my hands. It wasnt even warm or anything. It was on the hotplate for some time and then i poured off the liquid in it (Water) and let it cool. I had it in my hands (wasnt even noticably warm) and it just cracked when I added some tap water for cleaning. What am i doing wrong. How can it be that nothing breaks for me no matter how badly i treat them but the 1L just friggin crack to hell. Is there something like a prayer or ritual I am missing to keep 1L beakers from exploding. And no im not using cheap craptastic beakers. First one was a schott, last one was a simax. But some friggin how chinese crapglass 100-500ml beakers take the same stuff without even taking a scratch. In my chemist time I only broke one thing that wasnt a 1L beaker :a vigreux (not the one i repaired that one was dead on delivery) But that one broke because a gosh darn metal bar dropped 1m on it. 6 1L beakers and counting. I think i need to quit buying 1L beakers alltogether and just use flat round bottoms or erlenmeyers.... [Edited on 28-1-2018 by Deluxbert]

Quote: Originally posted by wg48

[/rquote]Buy 900ml ones[/rquote] Good practical advise LOL

Hmmmm, maybe use plasticware. Can't use for heat but lot of uses to have around. Best part you can get a whole selection of plasticware beakers for less than price of one glass 1000ml beaker. Cheap enough that you can call them disposable.

Quote: Originally posted by highpower48

Hmmmm, maybe use plasticware. Can't use for heat but lot of uses to have around. Best part you can get a whole selection of plasticware beakers for less than price of one glass 1000ml beaker. Cheap enough that you can call them disposable.

@Deluxbert, try to avoid warm the beckers directly on the top of hotplates surfaces. The glass they were made is too thin, even they're borosilicate made. Any thermal shock can break them easily.

Instead, try to put them inside a metal recipient (aluminum, stainless steel, or everything similar) plenty of water to warm it until 100ºC or motor oil (for baths until 250ºC). The recipient must to be in contact with the hot plate, nor the becker.

When finished and the temperature have gone down, pick up the becker with gloves, not with your bare hands to avoid static eletricity and put it over a non metal surface, or paper towels, never directly over the bench to avoid thermal shock and breakage of the glass.

If you do that and the beckers still breaking down, sorry, but you need to bless yourself in a hurry, cause you're certainly cursed (lol)

Quote: Originally posted by Tetra

... I thought I'd be smart and let my adapters sit in cool water overnight after I did my second WFNA run. Seeing as it was winter and it's cold as all shit here in Maine, that was a big mistake. Came back in the morning to find my beautiful, delicate, ever-so-useful-but-not-anymore-because-f*ck-ice, distillation adapters... all caked in solid ice, broken into three pieces each. Needless to say, my reaction was similar to that of Tom Cruise's in "Rain Man". Except, replace the sand with snow. https://www.youtube.com/watch?v=XRjoCb2a_nk

I too have had bad luck with 1l or more beakers,
(ok, I was careless) ... so far I've cracked

. a 1l hot horlicks mixer - pyrex
. a 1l cafetierre - toughened glass
. a 1.5l cafetierre - pyrex
. a 1l Griffin/low-form beaker - borosilicate

I had considered getting myself a nice Schott Duran 1l beaker
... untill I saw the cost.


largest undamaged beakers are now 250ml
so far I've not broken any beaker 250ml or less.

Quote: Originally posted by Deluxbert

So i seem to be cursed because i have the great luck of constantly breaking 1000ml beakers. Just today I was drying up some iron oxide in a beaker and it just friggin popped. At 150C...... [Edited on 28-1-2018 by Deluxbert]

Quote: Originally posted by Deluxbert

I had it in my hands (wasnt even noticably warm) and it just cracked when I added some tap water for cleaning.