Glossary entry

Finnish term or phrase:

tasohioskolvi

English translation:

plane ground joint flask

Added to glossary by Tarja Karjalainen
Dec 11, 2006 22:26
17 yrs ago
Finnish term

tasohioskolvi

Finnish to English Science Chemistry; Chem Sci/Eng
again, manufacturing a chemical. Context: "Valitaan tasohioskolvi seuraavasti ..."
Proposed translations (English)
4 +1 plane ground joint flask
4 flat-bottom ground joint flask

Proposed translations

+1
8 hrs
Selected

plane ground joint flask

.

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Note added at 16 hrs (2006-12-12 15:02:51 GMT)
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it is plane-ground joint flask, as in the link
http://www.freepatentsonline.com/6426381.html

PREPARATION EXAMPLES
Example 1

124.5 g of oxidatively degraded potato starch (Perfectamyl.RTM. A 4692 from Avebe) are dispersed in 985 g of demineralized water and dissolved by heating to 86.degree. C. under nitrogen in a 2 l flask having a plane-ground joint and a stirrer, reflux condenser and jacket heating.

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Note added at 16 hrs (2006-12-12 15:04:02 GMT)
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Here "plane", of course, defines ground, not flask.
Peer comment(s):

agree Timo Lehtilä : Yes Marju. You are probably right. I did not think that the plug can have an under-ground collar and the top surface of the bottle neck can similarly be ground.
10 hrs
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4 KudoZ points awarded for this answer. Comment: "Many thanks!!"
15 hrs

flat-bottom ground joint flask

Let's analyse a little.

'Kolvi' is a (heating) flask used in laboratories.

'Hios' means a (conical) ground (glass) joint.

'Taso-' can theoretically refer to both 'hios' and 'kolvi'. Apparently it is only 'kolvi' that here can be referred by 'taso-'.

Then, what can 'taso-' (flat surface) mean here. The only logical conclusion I can come up to is that it is a flask that is meant to be placed on a flat surface.

And, really, there are two types of these (laboratory heating) flasks. One with round-bottom (to be hanged above a Bunsen burner) and one with flat-bottom (to be placed on a stovetop).

On this site

http://www.laborexin.fi/sivut/lasi/h_lasi/Hioskolvit-esite.p...

they tell about 'pyöreäpohjaiset' (round-bottom) and 'tasapohjaiset' (flat-bottom) 'kolvit'.

So, I am quite convinced that 'tasohioskolvi' is just a shorter name for 'tasapohjainen hioskolvi' (flat-bottom ground joint flask).

'Plane ground joint flask' can apparently mean the same (tells Google), but 'plane flask' seems also to mean 'litteä pullo' ('taskumatti' if used for "traveller's first-aid liqueur storage")
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