ATS=™12-0-0-26S · ammonium thiosulfate
ATS=™
Sold on 12% nitrogen and 26% sulfur, used alone or blended with UAN. The sulfur figure follows the thiosulfate content of the liquor.
thiosulfate concentration · homogeneity · sulfur figure
Thiosulfate liquors · Terre Haute, IN
ATS=™ and Thio 25-17™, read in the line.
Both liquors ship on a guaranteed analysis, 12-0-0-26S and 0-0-25-17S, and the thiosulfate content sets the sulfur figure on each. Inline means the probe sits in the reaction line, the tank or the load-out line itself. Spectrally X1 INLINE sends a thiosulfate reading to your control system about every 5 seconds.
~5 s per reading2 measurement points per cabinetSelf-cleaning retractable probeValues to your control system
One spectrum from the liquor
Four values from one spectrum.
- Thiosulfate concentrationThe figure both grades are sold on. A Raman-active oxyanion in a weakly scattering water matrix; the feasibility study on your liquor sets the model and its accuracy.
- Solution homogeneityA reading in the tank recirculation loop that holds steady over a full turnover indicates a mixed volume.
- SulfateIts own band at 976 cm⁻¹ sits close to the thiosulfate bands and tracks the oxidized side of the liquor.
- Sulfur figureThe S on the label follows the thiosulfate reading; nitrogen and K₂O stay on your lab method.
Iodometric titration typically answers in 20 to 30 minutes. The analyzer returns a reading about every 5 seconds, and titration stays on as the periodic reference.
Site
Terre Haute, Indiana
2400 S Erie Canal Rd, with rail service.
Products
ATS=™ · Thio 25-17™
Ammonium and potassium thiosulfate, shipped as clear liquors.
Chemistry
Sulfur in water
SO₂ absorbed into an aqueous base and converted to thiosulfate.
Where Raman fits
Line, tank, load-out
Two measurement points per cabinet as standard, more on request.
01What Terre Haute makes
Sulfur liquors with strong Raman bands.
Each liquor ships on its own analysis, and each carries an oxyanion with its own bands in a Raman spectrum. Water is a weak Raman scatterer, so the aqueous matrix leaves that signal readable.
ATS=™
Thio 25-17™0-0-25-17S · potassium thiosulfate
Thio 25-17™
A chloride-free, clear and colorless liquid at 12.2 lb/gal and SG 1.46, per Hydrite's product flyer.
thiosulfate concentration · sulfur figure
Hydrite portfolioAmmonium · sodium · magnesium
Bisulfite liquors
Hydrite also makes liquid bisulfites for food, fermentation and industrial customers.
a bisulfite model of its own
Product, field and plant images: Hydrite.
02Where it fits
Three points on the line where a reading changes a decision.
Pressure, temperature and location of each point are checked against the probe rating in the feasibility workshop.
Where a probe goes on a thiosulfate line candidate points, one analyzer cabinet
03The lab loop
The liquor keeps moving while the titration runs.
A titration describes the liquor at the moment the sample was drawn. By the time the result is back, the reaction line and the tank have moved on.
Titration in the lab
20–30min
Draw a sample from the line or the tank, carry it to the lab, titrate, report. The result describes the liquor at the moment of the draw.
Spectrally X1 INLINE
~5s
The probe reads the liquor where it flows and the value reaches the control system over Modbus. With a reading every few seconds, a drift in thiosulfate shows while the feed can still be corrected.
Per reading
~5s
From spectrum to a process value. Acquisition time is configurable from 5 to 300 s.
Reagents
0
Routine operation runs without reagents or consumables. Rated laser lifetime is a minimum of two years.
Channels
2
Two measurement points per cabinet as standard, for example the reaction outlet and the storage tank.
To the line
5.5mo
Typical time from the first workshop to a running installation: 3 to 5.5 months.
04Who this is for
Four desks at Terre Haute use the same number.
Each page of this site answers the question one of them asks first.
Plant & manufacturing
Run the line on a measured concentration.
With thiosulfate in the control system, the reaction line runs to a number on the screen and every shift hands over on the same trend.
- Corrections made while the liquor is still in the line
- More checks from the same lab hours
- A time-stamped record for each campaign
Truck bay & load-out
Every load leaves with its own reading.
A probe on a load-out line that stays liquid-filled reads thiosulfate while the load runs, and the value is stored with a time stamp for that load.
- A time-stamped reading for each load
- One record per load, exportable as CSV or PDF
- The lab keeps the certificate check
Maintenance & reliability
One optical probe, cleaned on a cycle.
The Spectrally X1 PROBE is 316L stainless steel with a fused-silica window, rated to 16 bar, −40 to +125 °C and IP67. A retractable module rinses the window on a retract, rinse and return cycle.
- Flange, Tri-Clamp or retractable holder
- Automatic calibration against a built-in reference
- Service by Gekko Photonics Industrial or its technical partner
Operations training
A trend a new operator can read on day one.
A live concentration trend takes part of the sampling routine off the round, so training moves from drawing and titrating a sample to responding to a value.
- Fewer manual sample draws from the line
- One screen and one number for every shift
- Start-up training for up to 10 operators
Aleksandra Łukasiewicz
Head of International Sales
Hope you find it interesting. Please contact us and talk about our analysis in detail.
a.lukasiewicz@gekkophotonics.com+1 804 593 0282