Thiosulfate grades built on one oxyanion.
ATS=™, Thio 25-17™ and MTS=™ differ in the cation and share the thiosulfate their labels are built on. This page lists what each plant makes and where a Raman spectrum reads it.
Each figure on the label has a source in the liquor.
The sulfur figure follows the thiosulfate content; the nitrogen figure is set by the ammonium balance of the same salt.
25% soluble K₂O and 17% sulfur, chloride-free, 12.2 lb/gal and SG 1.46 per Hydrite's flyer.
The same oxyanion with magnesium as the cation, made by Sacramento Ag Products; the model is trained on the MTS liquor itself.
Where a probe goes at each thiosulfate plant.
| Plant | Liquors | Candidate points |
|---|---|---|
| Terre Haute, IN | ATS=™ · Thio 25-17™ | reaction outlet, storage tank, load-out |
| Waterloo, IA | ATS=™; USDA-supported potassium thiosulfate expansion targeted for 2027 | reaction outlet, storage tank, load-out |
| Sacramento, CA (Sac Ag) | ATS · KTS · MTS · STS · bisulfites | the same points, on each liquor |
A clear aqueous liquor gives a clean spectrum.
Oxyanions with their own bands
Thiosulfate and sulfate are Raman-active. Sulfate's band at 976 cm⁻¹ sits close to the thiosulfate bands, and the feasibility study sets how finely the model separates them.
Water stays quiet
Water is a weak Raman scatterer. In an aqueous liquor it leaves the analyte bands readable, where infrared methods contend with strong water absorption.
One model per liquor
Spectrally OS runs one calibrated model per parameter and liquor, a hybrid of neural networks and classical chemometrics checked against your titration.
The second sulfur chemistry in the portfolio, scoped liquor by liquor.
Ammonium bisulfite at 60% and 70%, sodium bisulfite at 38% and 40%, magnesium bisulfite and food-grade potassium bisulfite at 30% are part of the Hydrite portfolio. Each is a separate matrix, and the feasibility study sets which of them a model covers first.
Hope you find it interesting. Please contact us and talk about our analysis in detail.
a.lukasiewicz@gekkophotonics.com+1 804 593 0282