Thick Glass Heavy Duty 4000 ml beakers

[Jason1]

maybe we can tax ourselves into prosperity!

 

[The Refiner49er]

Hey KaDriver, can we see a good picture of the beaker itself?

Thanks!

 

[Harold_V]

And yet a single US executive may well make more than a hundred factory workers but produces nothing. Who priced us out of the market? :roll:

We did. Plain and simple. Top to bottom, Americans have no concept of earned money. The only thing the vast majority think of is how little they can do for a maximum return. It grieves me that we have lost our way in this country. I do not expect it will reverse. Precious few have learned anything from recent events---they are still waiting for the return of "business as usual", which is the very thing that lead to our undoing.

Damn----I, being a moderator and commenting on politics, should be fired.

Harold

 

[goldenchild]

Ive been using the 4 liter beakers I purchased and they are doing nicely.

I firmly believe that with good practices you can use a coffee pot in any of our practices without any problems.

 

[Barren Realms 007]

And yet a single US executive may well make more than a hundred factory workers but produces nothing. Who priced us out of the market? :roll:

We did. Plain and simple. Top to bottom, Americans have no concept of earned money. The only thing the vast majority think of is how little they can do for a maximum return. It grieves me that we have lost our way in this country. I do not expect it will reverse. Precious few have learned anything from recent events---they are still waiting for the return of "business as usual", which is the very thing that lead to our undoing.

Damn----I, being a moderator and commenting on politics. should be fired.

Harold

That can be your freebe for the year, but no more. You are on thin ice here with a stern warning... 8) :mrgreen:

 

[kadriver]

49er,

I'll get a picture of one of the 4 liter beakers on the forum tomorrow.

kadriver

 

[kadriver]

Mario, I have never seen a four liter glass coffe pot, but I would buy one if they are out there for sale. A handle would be nice.

kadriver

 

[ericrm]

kadriver
does your kimax are wrote on the beaker where they are from ,is the china wrote on the beaker?

 

[kadriver]

eric,

the beakers have no markings on the glass as to country of origin.

The packaging says "made in China"

The spot in your picture that says USA is blank on the 4L beaker I have.

I will snap a picture and post it tomorrow.

kadriver

 

[The Refiner49er]

I thought I would share this picture of "the pride of the fleet" of my glassware, It is a 12 liter column that was purchase 4 or 5 years ago and is handy for general settling and dropping silver. The main reason I am posting is because it is similarly of heavy wall construction, and although it is marked Pyrex and believed to be borosilicate, it is definitely not for stovetop use, being 3/16" thick.



Generally speaking, most any thick walled glass vessels will not tolerate rapid temperture changes, it must be gradual and reasonably even to prevent internal stressing and hence the tendancy to shatter. There are a number of methods that can be used to reduce thermal stress on glassware, my favorite is placing the beaker in a water bath, AKA a double boiler. This not only buffers direct heat from any burner, but in starting an acid process especially nitric; it may serve to stabilize or cool the solution temperture on rapid reactions and as the acid depletes, the stored heat in the water bath can help maintain a higher temp and digestion rate and postpone the need to apply additional heat. It also helps to prevent boil overs in many cases, and with a water bath container of adequate size will eliminate general area clean up requirements by catching most anything that does get out of control. I often use the cheap stainless dog food/water dishes that are approx 4" deep and 12" to 14" in diameter for this purpose.

It may also be advisable with any glass vessels to preheat gently with hot water prior to intent to transferring hot liquids to minimize thermal shock. I think that KaDriver's beakers for the price may be quite suitable for low temp use and other purposes, but I am sure he will let us know if otherwise.

On another subject, I am currently looking for one or more LARGE flat bottom round boiling flasks of 6L or bigger, erlenmeyers would be acceptable as well. Used or new is OK, just hoping to get them for a reasonable price. I am moving towards a closed system for primary digestion, as this seems to be the best approach for scrubbing nitrogen dioxide vapors.

Thanks in advance for any references or offers!

 

[jimdoc]

eric,
the beakers have no markings on the glass as to country of origin.
The packaging says "made in China"
The spot in your picture that says USA is blank on the 4L beaker I have.
kadriver

That says it all.
They used to be proudly made in the USA.
Now they are sneakily made in China, they know that putting China on it is like putting JUNK on it.
Be careful with those for sure. That wasn't cool of that seller showing the pictures he did for those beakers.

Jim

 

[Harold_V]

And yet a single US executive may well make more than a hundred factory workers but produces nothing. Who priced us out of the market? :roll:

We did. Plain and simple. Top to bottom, Americans have no concept of earned money. The only thing the vast majority think of is how little they can do for a maximum return. It grieves me that we have lost our way in this country. I do not expect it will reverse. Precious few have learned anything from recent events---they are still waiting for the return of "business as usual", which is the very thing that lead to our undoing.

Damn----I, being a moderator and commenting on politics. should be fired.

Harold

That can be your freebe for the year, but no more. You are on thin ice here with a stern warning... 8) :mrgreen:

I shall do my best to behave.

How sad is that? Me-------do my best? Been doing that right along! Look where the hell it got me! :lol:

Harold

You're ok, Barren!

 

[qst42know]

There is little difference in an hour of work anywhere in the world. It's the currency exchange rate that provides the unfair advantage. Take the "cheat" out of the game and the exodus of jobs would stop.

 

[kadriver]

Ahh yes, the holy grail of economists - a one world currency.

Here is some photos of the beakers I received.

 

[The Refiner49er]

I can understand the forum members sentiments on political and economic issues, they are certainly justifiable. However, in regards to the beaker, it appears in the picture the thickness of the wall seems to be uniform, and are not necessarily "thick" per se, therefore if it is indeed made of borosilicate glass, it is very likely that it will sustain reasonable use if handled with care.

LOL, when I was starting out, I managed to break a 3 liter name brand lab grade beaker by (stupidly) pouring boiling water into the cold vessel. It didn't shatter, but I heard a loud CRACK and the entire bottom basically fell off in one piece... NOT A GOOD DAY, but I have been very careful since then to "temper" the glass by bringing it to the approx temperture of the liquid it is about to receive.

Good Luck with those beakers, KaDriver, and let us know if you have any problems!

 

[goldenchild]

Mario, I have never seen a four liter glass coffe pot, but I would buy one if they are out there for sale. A handle would be nice.

kadriver

Well... There are these. This is only a 1000 ml but its my work horse. Its also definately borsilicate glass. It's a bit thicker than my other beakers. And for anyone that cares it's made in the USA. The handle is soooooo nice. For what its worth... coffe post are on average about 3 liters an of course inexpensive. I know there are all glass pyrex coffee pots out there with handles. The handle is part of the pot so there is nothing obstructing the lip of the opening and watch glasses lay on top very nicely.

 

[ericrm]

thank you kadriver
great pic by the way
it make me feel a bit more comfortable buying chinese stuff

 

[kadriver]

49er, that is one beautiful looking piece of glassware.

I used two of the 4 liter beakers to heat some solutions yesterday. Both came thru with no problems or issues. I placed the beakers inside a corningware casserole dish, then set that on the burner so as not to expose the glass directly to the coils of the heater.

I bought some nice thick glass beakers a while back. I paid a premium price. They were heavy duty - thick walled pyrex or borosilicate. The glass was about three times thicker than a standard beaker.

I made the mistake of placing a 1000ml thick walled beaker, inside of a 2000ml thick walled beaker so I could soak them in the sink before washing. Putting the beakers inside each other saves room inside my sink.

The pour spout on the 1000ml beaker casued it to wedge inside the 2000ml beaker making them inseparable. The two beakers would not come apart by any means I could think of.

I ended up having to trash both of them. Fifty dollars worth of top quality glassware ruined by sticking one inside the other.

Moral of the story - do not nest (place one inside the other) heavy duty thick walled beakers.

kadriver

 

[kadriver]

Mario,

The beakers with the handles are awsome. I have seen beakers with handles on Ebay from time to time.

Do you remember how much they cost?

kadriver

 

[jimdoc]

I made the mistake of placing a 1000ml thick walled beaker, inside of a 2000ml thick walled beaker so I could soak them in the sink before washing. Putting the beakers inside each other saves room inside my sink.

The pour spout on the 1000ml beaker casued it to wedge inside the 2000ml beaker making them inseparable. The two beakers would not come apart by any means I could think of.

I ended up having to trash both of them. Fifty dollars worth of top quality glassware ruined by sticking one inside the other.

Moral of the story - do not nest (place one inside the other) heavy duty thick walled beakers.

kadriver

I am sure there must be a trick to separate beakers that get stuck like that.
Wouldn't you have been able to use it for something as it was? Like a beaker in a back-up beaker.

Jim