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| Start New | Message Index | Flat View |
| Glycol detection |
| Author: | Matt Hownam |
| Date: | Tuesday, 30th Oct 2001 09:42 |
| Views: | 3,003 (excluding Digests and RSS feeds) |
| URL: | http://www.freepint.com/go/b13616 |
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I am using a glycol detection kit to detect free glycerol in biodiesel, I need to know the chemistry of the reaction.
The steps and chemicals involved are as follows:
Step 1
Diesel + Reagent3 + Reagent1, heat under hot tap for 4-6 mins
Step 2
Add Reagent2 to the solution mix and warm under hot tap for 20 mins.
Reagent1
Potassium Periodate, Sodium Sulphate
Reagent2
Magnesium Sulphate, Sodium Sulphate, p-Rosaniline Hydrochloride
Reagent3
Sulphuric Acid, Demineralised Water
All the above are pre measured in the kit supplied by Hach Company.
When usin the kit to detect glycol only 0.5ml of the sample to be tested is used, this is for a range of 0-150 mg/l of glycol. We are expecting 1800 mg/l so is there anything that can be used to dilute the diesel sample?
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| Start New | |
| Topic |
Author |
Date |
ID |
 | Glycol detection | | I am using a glycol detection kit to detect free glycerol in biodiesel, I need to know the chemistry of ... |
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Matt Hownam |
30/10/01 09:42 |
13616 |
 | Re: Glycol detection | | "is there anything that can be used to dilute the diesel sample?"
...like, adding more diesel? In appropriate proportions, of ... |
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Edward W. Stollery II |
31/10/01 02:43 |
13636 |
| | Re: Glycol detection | | The glycol is mixed in with the diesel so adding more diesel adds more glycol.
The concentration of glycol is too ... |
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Matt |
31/10/01 09:30 |
13642 |
| | Re: Glycol detection | | Given an original mixture of (diesel and glycol), to which one adds pure diesel ... the glycol percentage MUST drop. ... |
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Edward W. Stollery II |
01/11/01 01:44 |
13668 |
| | Re: Glycol detection | | I see what you're getting at...We are making Biodiesel fron cooking oil which gives a glycerine byproduct most of this ... |
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Matt |
01/11/01 11:39 |
13676 |
| | Re: Glycol detection | | Hi Matt,
Ed's suggestion got me thinking....
You could try diluting the biodiesel with -conventional- diesel (gasoil) produced by petroleum refining - ... |
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Peter Carter |
02/11/01 10:40 |
13700 |
| | Re: Glycol detection | | Sorry I can't help you. Perhaps this improved description will generate other respondents! |
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Edward W. Stollery II |
02/11/01 03:19 |
13696 |
Please note: The reply form is not showing because the posting is older than six months or the thread is locked. Please start a new topic or contact the forum administrator.
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