Thick Glass Heavy Duty 4000 ml beakers

[nickvc]

Kevin I wouldn't be too concerned if they are made in the USA as the ones I had were from eastern Europe and I purchased them off a lab supplier so they had a mark up and they were still silly cheap.

 

[HigginsMechanical]

Harold the ones I had came from Eastern Europe some years ago while the price was very good they did break easily and were liable to thermal shock, I suppose the glass was of a lesser quality but serviceable with care.

Thanks, Nick. Sort of what I expected.

There's been talk of late about the makers not using borosilicate glass for beakers. That, alone, would certainly address all of the problems you mentioned in your previous post.

Makes me wonder what they do to the glass (assumed to be soda lime glass) to make it stand up to lab use.

Harold

This site:

http://www.opticsplanet.net/kimble-kontes-kimax-brand-heavy-duty-beakers-low-form-double-scale-borosilicate-daaabf.html

has a pack of (4) for $87.65 w/ free shipping... But, the description says:

Kimble/Kontes KIMAX Brand Heavy-Duty Beakers, Low Form, Double Scale, Borosilicate Glass 14005 4000/ 89001-084

"Beakers feature thick, uniform walls throughout and an extra-thick, evenly tooled top rim. Spout is designed for optimum performance. Heavy construction is intended to prolong life expectancy with increased and more rigorous usage. All sizes have a durable matte finish marking area and a white graduated scale. Not recommended for use on hot plates. Designed from ASTM Specification E960, Type II requirements."

This kind of lends itself to the liability of thermal shock, even though they are borosilicate as stated...

Harold, did you have issues using these on hot plates?

 

[goldenchild]

Something funny is going on in the description there. Why would you not be able to use the beakers on a hotplate? A beaker is either borosilicate or it isn't.

 

[niteliteone]

Try this one for a better description:

http://www.vgdusa.com/beakers.htm

Not recommended for use on hot plates where significant thermal gradients exist due to lack of agitation of contents or absence of a temperature control.

And from Kimbles site the beakers do meet all the specifications for regular labware beakers like all the other ones I have.
KIMAX KG-33 glass
Designed from ASTM Specification E960, Type I requirements.

I have accidentally boiled H2s04 down in my 2L kimex beaker to powder with the hotplate over 800*F
just turned the hotplate off and left the beaker on it to cool off before removing it. The ambient air temp. was 34*F so a lot of thermal stress on the beaker.

I feel these should be just as reliable as any other with proper spill collection measures as used with the others.

My biased opinion since I trust Kimex products and follow good working procedures.

Tom C.

 

[kadriver]

Here is a photo of the label, it says they are made in China, not USA as I had originally thought.

I will use these big ones for cementing silver (I used to use 3 liter jars that I got at the thrift store). At least these have a pour spout.

Sorry about making this recommendation - I guess that the old saying still stands, "if its too good to be true, then it probably isn't true"

kadriver

 

[jimdoc]

You have to watch everything nowadays, even regular kitchen Pyrex. You can't trust what used to be, to be the same in these current times. They (China) are cutting corners that should not be cut. They seem to care about profit before safety. I guess you should take extra safety precautions as if to expect any modern glass to break at all times.

Jim

 

[glondor]

I bought a 5 liter beaker today at Efston science. ( $53 )The guy said it was borosylicate glass but advised against heat. He said the pyrex ones were good for heat but they were 150 bucks each for 4 liter size. I will use it for a non heat project. ( cement silver and silver cell) Good ones are expensive! Old corningware is the best. I can torch incinerate in an old one I have with no issues.

 

[Jason1]

I can torch incinerate in an old one I have with no issues.

What kind of temperature would that be glondor (or what kind of torch)?

 

[glondor]

Mapp gas. Not super hot but still plenty hot. Very uneven heat on the glass. No issues. This dish is about 40 years old. Good glass.

 

[Palladium]

I wish I could find Pyroceram beakers. That would be the cats meow! Has anyone studied the Pyroceram family of products? The Vycor family? Neoceram? I was wanting to find a Pyroceram top off of a stove with the eyes and all. Imagine what I could use that for.

 

[glondor]

Our stove top is pyroceram, I think the wife would miss it if it went to the lab.... :lol:

 

[nickvc]

Our stove top is pyroceram, I think the wife would miss it if it went to the lab.... :lol:

And you might be missing a few body parts..... :shock:

 

[HigginsMechanical]

The Big $82.98 Beaker Question... Mistake, too good to be true means it isn't, or, what's up?????

I was at Amazon.com today, searching for beakers (among other web sites too) and I came across the following:

Exact Item Title:

"Corning Pyrex Low Form Griffin Beaker, Double Scale, Graduated, 4 L (Case of 6)"
Price: $89.82 with free super-saver shipping

Huh? I've seen this as the price each out there...

So I e-mailed Amazon...

"Is this the correct and total price ($82.98) for 1 full case (a quantity of 6) new 4000 mL (4 L) beakers, as the page indicates?
Thank you,
Don"

Here is the official Amazon.com reply:

"Hello,
Yes it is correct. Unfortunately, I don't have much more information about the 'Corning Pyrex Low Form Griffin Beaker, Double Scale, Graduated, 4 L'; all of the information available is displayed on the item's product detail page. You can contact the manufacturer directly for more information about 'Corning Pyrex Low Form Griffin Beaker, Double Scale, Graduated, 4 L'. Many manufacturers list their contact information online. You might want to try doing a web search to find Corning's phone number or website. I hope this helps. We look forward to seeing you again soon. Best regards, Nikil D, Amazon.com


Obviously, I never asked for information, just if the price was correct.

So, I again e-mailed Amazon to confirm....

"Nikil, Thank you for your reply. Normally, the price indicated on the page would be for (1) Pyrex beaker at full retail price. But this page represents that (6) Pyrex beakers are included for the price advertised. I must once again confirm that I will receive (6) Corning Pyrex Low Form Griffin Beakers, Double Scale, Graduated, 4 L for the price of $82.98, including free shipping.... Thank you, Don"


So, based on his next reply, if it is "yes" do I make the $82.98 gamble???

 

[glondor]

I would say so yes. Then sell a couple to me!

 

[ericrm]

i just run at the bank to make "room" on my credit card,i was so trill about those 6 4000 ml ,that i almost forgot...

82.98- shipping = 70$ ?!?

well i smell something fishy here at 12$ for 1 4000ml pyrex beaker (NEW) :shock:
i was thinking on my way back that maybe they got them free,maybe they stole them, maybe this is a bad batch and 1 in 1000 is wrong...
but the simpler thing to think is they are fake ,and when something is fake it is worse than cheap stuff

 

[HigginsMechanical]

well i smell something fishy here at 12$ for 1 4000ml pyrex beaker (NEW) :shock:
i was thinking on my way back that maybe they got them free,maybe they stole them, maybe this is a bad batch and 1 in 1000 is wrong...
but the simpler thing to think is they are fake ,and when something is fake it is worse than cheap stuff

I don't know, but we shall see.... I went ahead and ordered them based on Amazon.com's 2nd reply... They might make for nice $13.83 planters or long island ice tea glasses.

Amazon replied:

"Hello,
Thanks for sending us your comments! We want to provide service on a level customers will remember, and it's great to know we've succeeded.
Further, I can confirm that you will receive six Corning Pyrex Low Form Griffin Beaker, Double Scale, Graduated, 4 L at the price of $82.98, including free shipping. We look forward to fulfilling your next order! Best regards, Amrit P., Amazon.com"

The one thing I noticed is shipping "for this item" usually takes 3-4 weeks.... If they're coming from China, it must be a really slow boat.

Or..... Amazon has their description wrong and I am going to end up with 400mL (Which, I will send back). The picture shows a 400 mL whereas the description further down the page says:

Brand Name Corning
Part Number 1000-4L
Material Type Glass
Number of Items 6


If anyone else is interested, here is the link to the Amazon.com page:

Corning Pyrex Low Form Griffin Beaker, Double Scale, Graduated, 4 L (Case of 6)
$82.98 with free shipping...

http://www.amazon.com/Corning-Griffin-Beaker-Double-Graduated/dp/B004DGIGZ8/ref=sr_1_136?ie=UTF8&qid=1328115456&sr=8-136


:shock:

 

[kadriver]

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

Remeber how items made in Japan were shunned back in the 60's?

China has aquired the same stigma today.

These were made in China and I think they are up to specs - no problem.

My opinion, the workers here in the U.S.A. are getting $20 buck an hour to make these.

The guy from china is willing to make the same thing for $3 per hour - to him this is an incredible raise from $3 per month!

I am afraid that we have priced ourselves out of the market.

Of course, this is strictly my opinion and I may be completely wrong!

Time will tell.

kadriver

 

[qst42know]

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:

 

[kadriver]

Americans did.

 

[kadriver]

Sorry, I meant to say, "We Americans did".

kadriver