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titerstelling

English translation: standardisation (of a titrating solution)

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Dutch term or phrase:titerstelling
English translation:standardisation (of a titrating solution)
Entered by: Barend van Zadelhoff

12:13 Feb 4, 2016
Dutch to English translations [PRO]
Science - Chemistry; Chem Sci/Eng / titration
Dutch term or phrase: titerstelling
Document title is: Perchloorzuur 0,1 M: titerstelling m.b.v. kaliumwaterstofftalaat

1. Inleiding
De titerstelling van 0,1 M perchloorzuur wordt uitgevoerd m.b.v. kaliumwaterstofftalaat. De titer van de 0,1 M perchloorzuur oplossing is na de titerstelling één week geldig.

2. Principe
De titer van 0,1 M perchloorzuur wordt bepaald m.b.v. kaliumwaterstofftalaat. Kaliumwaterstofftalaat wordt opgelost in azijnzuur en getitreerd met 0,1 M perchloorzuur. Het eindpunt van de titratie wordt potentiometrisch bepaald.

On the web, potassium hydrogen phthalate is given as an example of a primary standard: Potassium hydrogen phthalate (usually called KHP) for standardisation of aqueous base and perchloric acid in acetic acid solutions

So would 'standardisation' work for titerstelling? I've been using titre determination/determination of titre but it's getting a bit repetitive... I don't think it's simply 'titration'.

Wikipedia definition of titerstelling (no EN equivalent):

Veel stoffen die als titrant gebruikt worden zijn lastig zuiver te verkrijgen, of reageren makkelijk (met componenten uit de lucht of anderszins). Om deze reden wordt regelmatig de concentratie van de titrant vastgesteld met behulp van een wel makkelijk zuiver te verkrijgen stof, de oertiterstof. De bepaling waarin de concentratie van een titrant nauwkeurig bepaald wordt, noemt men titerstelling. In oudere teksten is hier dan sprake van sterktebepaling.
MoiraB
France
Local time: 20:37
standardization (of the titrating solution)
Explanation:
As you are a chemist you must be right.

zie the definition you found in Wikipedia:

Veel stoffen die als titrant gebruikt worden zijn lastig zuiver te verkrijgen, of reageren makkelijk (met componenten uit de lucht of anderszins).

Om deze reden wordt regelmatig de concentratie van de titrant (titrating solution) vastgesteld met behulp van een wel makkelijk zuiver te verkrijgen stof, de oertiterstof (primary standard).

De bepaling waarin de concentratie van een titrant nauwkeurig bepaald wordt, noemt men titerstelling. In oudere teksten is hier dan sprake van sterktebepaling.

--> nauwkeurige bepaling van de concentratie van de titrating solution:

http://tinyurl.com/goegrso

The concentration of a base titrating solution can be determined in one of two ways:
1. By using the base solution to titrate a standard acid solution of precisely known concentration, such as commercially available 0.100 M HCl.
2. By using the base solution to titrate a known amount of a “primary standard”, a solid acid that can be weighed easily and that reacts with base in a known stoichiometric manner.

You will utilize the second procedure and use a solid acid primary standard to standardize the NaOH solution. Requirements for a primary standard acid are:
 It must exist in very pure form, preferably as a crystalline solid.
 It must be chemically stable, must not react with atmospheric oxygen or absorb water from the air.
 It should have a high formula mass to minimize the effect of weighing errors.
 It must react in a known manner with the solution to be standardized.

http://tinyurl.com/hdv5ml8

--------------------------------------------------
Note added at 1 day4 hrs (2016-02-05 16:50:53 GMT) Post-grading
--------------------------------------------------

You were and are 100% right, Moira, even if the word 'titerstelling' may sound a bit peculiar or confusing.

This is not just about titration.

Obviously this is about standardisation (you prefer I use an s rather than a z in standardis/zation :-)) of a solution by using a reference solution, de 'oertiterstof' = the primary standard.

The Wikipedia explanation/definition and the reference I found are almost identical.

De 'oertiterstof' = primary standard exists in very pure form and is chemically stable etc.

I am not a chemist but I do understand something about it.
I studied medicine.
You need to have done chemistry and physics in secundary education in order to be able to start this study.

Then you had medical chemistry and biochemistry (with a book like Harper's review of biochemistry) and more during the medical studies.
Selected response from:

Barend van Zadelhoff
Netherlands
Local time: 20:37
Grading comment
After digging around a bit more, and consulting with my techie better half, I'm failrly convinced it must be standardisation. Plenty of web evidence for standardisation of perchloric acid using potassium hydrogen phthalate and in fact one of the references you give says "A commonly used primary standard for standardizing base solutions is the monoprotic weak acid potassium hydrogen phthalate". Client wasn't available to confirm so job had to be delivered with a note.
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +1titration/titrimetry
Richard Purdom
4standardization (of the titrating solution)
Barend van Zadelhoff


  

Answers


1 hr   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
titration/titrimetry


Explanation:
I really don't see any problem with this:


...a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of an identified analyte

https://en.wikipedia.org/wiki/Titration

Richard Purdom
Portugal
Local time: 19:37
Does not meet criteria
Native speaker of: English
PRO pts in category: 1

Peer comments on this answer (and responses from the answerer)
agree  kamilw
1 hr
Login to enter a peer comment (or grade)

3 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
standardization (of the titrating solution)


Explanation:
As you are a chemist you must be right.

zie the definition you found in Wikipedia:

Veel stoffen die als titrant gebruikt worden zijn lastig zuiver te verkrijgen, of reageren makkelijk (met componenten uit de lucht of anderszins).

Om deze reden wordt regelmatig de concentratie van de titrant (titrating solution) vastgesteld met behulp van een wel makkelijk zuiver te verkrijgen stof, de oertiterstof (primary standard).

De bepaling waarin de concentratie van een titrant nauwkeurig bepaald wordt, noemt men titerstelling. In oudere teksten is hier dan sprake van sterktebepaling.

--> nauwkeurige bepaling van de concentratie van de titrating solution:

http://tinyurl.com/goegrso

The concentration of a base titrating solution can be determined in one of two ways:
1. By using the base solution to titrate a standard acid solution of precisely known concentration, such as commercially available 0.100 M HCl.
2. By using the base solution to titrate a known amount of a “primary standard”, a solid acid that can be weighed easily and that reacts with base in a known stoichiometric manner.

You will utilize the second procedure and use a solid acid primary standard to standardize the NaOH solution. Requirements for a primary standard acid are:
 It must exist in very pure form, preferably as a crystalline solid.
 It must be chemically stable, must not react with atmospheric oxygen or absorb water from the air.
 It should have a high formula mass to minimize the effect of weighing errors.
 It must react in a known manner with the solution to be standardized.

http://tinyurl.com/hdv5ml8

--------------------------------------------------
Note added at 1 day4 hrs (2016-02-05 16:50:53 GMT) Post-grading
--------------------------------------------------

You were and are 100% right, Moira, even if the word 'titerstelling' may sound a bit peculiar or confusing.

This is not just about titration.

Obviously this is about standardisation (you prefer I use an s rather than a z in standardis/zation :-)) of a solution by using a reference solution, de 'oertiterstof' = the primary standard.

The Wikipedia explanation/definition and the reference I found are almost identical.

De 'oertiterstof' = primary standard exists in very pure form and is chemically stable etc.

I am not a chemist but I do understand something about it.
I studied medicine.
You need to have done chemistry and physics in secundary education in order to be able to start this study.

Then you had medical chemistry and biochemistry (with a book like Harper's review of biochemistry) and more during the medical studies.


Barend van Zadelhoff
Netherlands
Local time: 20:37
Does not meet criteria
Native speaker of: Native in DutchDutch
PRO pts in category: 12
Grading comment
After digging around a bit more, and consulting with my techie better half, I'm failrly convinced it must be standardisation. Plenty of web evidence for standardisation of perchloric acid using potassium hydrogen phthalate and in fact one of the references you give says "A commonly used primary standard for standardizing base solutions is the monoprotic weak acid potassium hydrogen phthalate". Client wasn't available to confirm so job had to be delivered with a note.
Login to enter a peer comment (or grade)



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