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New titration system for the modern laboratory: faster analysis, safer chemical handling, compliant software, more automation.
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Thermometric titrator for fast determinations if potentiometric titration cannot be applied
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OMNIS KF – Safe, easy, and fast Karl Fischer titration
Karl Fischer titration has never been better:
- Safe handling of reagents,
- Easier titration through automatic titration start
- Time savings through automated procedures
Discover OMNIS KF

Reinventing volumetric Karl Fischer titration: OMNIS KF!

New ASTM D8045: Thermometric acid number determination in crude oil

The ASTM has released a new method for Acid Number (AN) determination in crude oil and petroleum products by thermometric titration.

Compared with potentiometric titration (ASTM D664), this method is more robust, faster, and simpler.

Above all, this method will save you money, as you will need less solvent per analysis.

> See how much you can save …

Petroleum quality testing with ASTM D8045

Why go with thermometric titration?

Robust:
Oil matrix does not interfere with the measurement.
Fast:
Analysis in one third of the time (compared with potentiometric titration).
Simple:
Sensor requires no maintenance or conditioning.
Inexpensive:
Less solvent and reagent per analysis.

Calculate your savings!

Your throughput

Samples per day

Annual operational days

Your solvent costs

1 L of solvent D664 ()

1 L of solvent D8045 ()

D664 requires 120 mL of solvent per sample.
D8045 requires 30 mL of solvent per sample.

Your savings with ASTM D8045

Send me information

It's all in the numbers: potentiometric vs. thermometric titration

	D664 using potentiometric titration	D8045 using thermometric titration
Volume of solvent required for analysis	125 mL	30–35 mL
Electrode conditioning	3–5 min	Not necessary
Electrode storage	LiCl in ethanol	Dry
Titration duration (averaged)	132–268 s	45–73 s
Method repeatability when measuring 1.0 mg KOH/g in crude oil	Not established	0.07 mg KOH/g
Method reproducibility when measuring 1.0 mg KOH/g in crude oil	Not established	0.31 mg KOH/g

> Want to know more? Get in touch with us …

Thermometry in the refinery process

Watch this video to learn more about the benefits of thermometric titration in the refinery process.

What our customers think …

"A typical thermometric titration takes just about two minutes. Moreover, the electrode does not need to be regenerated …"

Thomas Fischer, laboratory manager at Oel Check GmbH, Brannenburg, Germany.

How does thermometric titration work?

Titrotherm system for thermometic titration

Thermometric titration measures the temperature change in the titration solution (resulting from the reaction enthalpy) rather than the potential change. This technique can therefore be applied for difficult samples or matrices where potentiometric titration is difficult or not feasible.

As thermometric titration uses a temperature sensor and not an electrode, the sample matrix does not interfere with the measurement and sensor handling is as easy as it gets.

> Learn more about our Titrotherm for thermometric titration …

> Learn more about the Thermoprobe temperature sensor …

Downloads

8.000.5199

Brochure: Acid number of crude oil and petroleum products by new ASTM D8045

(PDF 915 KB)
AN-H-141

Application Note: Determination of the acid number in crude oil and gas oil as per ASTM D8045

(PDF 60 KB)
AN-PAN-1037

Application Note: Online measurement of the acid number (AN) in oils with thermometric titration

(PDF 1.2 MB)

Interested? Get in touch to learn more …

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