Haltermann Carless labs ensure the quality of aromatic solvents 4-fold

Assuring the quality of aromatics

Aromatic solvents are frequently used in the formulation of agrochemical products. They must be safe, easy to handle, effective, cost-efficient and environmentally sound. The quality of aromatic solvents is therefore a key criterion for manufacturers when choosing the right supplier. You can read about the contribution of our laboratories to the quality assurance of aromatics in this article.

Important product properties of aromatic solvents

Aromatic solvents are characterized by their excellent solvency power and inertness. They have a high flash point and are safe to use in this respect.

Haltermann Carless aromatic solvents are offered in various qualities under the Caromax^® brand, including with low naphthalene content (Caromax^® LN) and extra low naphthalene content (Caromax^® XLN).

The portfolio for aromatic solvents is used in the following areas:

Agricultural industry
Fuel additives
Coatings
Oilfield chemistry

Get more technical details our → aromatic solvents.

What do manufacturers of agrochemical products expect from heavy aromatic solvents?

Producers of agrochemical formulations have high demands on the quality of aromatic solvents. Only a few companies worldwide are able to reliably supply the required quality and constantly monitor it. For decades, Haltermann Carless has been a trusted supplier in this field. The development work done daily at our UK laboratory for → aromatic solvents in Harwich plays a key role in this.

Find out more about the Harwich location on this page:

Harwich – a versatile production site

The entire production process, starting with the selection of raw materials through processing, storage and delivery, is monitored on quality and composition by us in detail. Our experienced staff tests and controls the chemical and physical composition of our → Caromax^® aromatic solvents from batch to batch to ensure you always receive a consistently high product quality.

Stay informed with our Blog!

Subscribe to our blog and benefit from regular information on sustainable hydrocarbons, research & development and supply chain management:

With these 4 steps Haltermann Carless ensures the high quality of aromatic solvents:

1. Extensive analyses in our own laboratory

Long before a shipment of raw material reaches our → refinery in Harwich, UK, a sample is received in advance for lab analysis. When the raw material arrives, it is compared with the pre-shipment sample. If all is ok, the cargo is released for production. All analysis is carried out internally at our modern laboratory specialised in hydrocarbons. The material is checked not only for physical characteristics, but also in detail for its chemical composition and aromatic purity.

2. Ensuring reproducibility

Particular attention is paid to the reproducibility of the test data generated at the Harwich laborartory. The analytical instruments are calibrated weekly, and additionally checked for comparability by collecting statistical data over a longer period of time.

3. Separate distillation column prevents contamination

A team of experts plans the production of the various cuts and products based on the internal composition and the sales forecast provided by the commercial team. The products most in demand are based on C10 or C12 aromatics. Distillation takes place exclusively in a column suitable for such raw materials. The carefully executed distillation also allows heavy aromatic products with a low (up to 1%) or extra low naphthalene content (up to 0.01%).

4. Continuous in-process and final control

A further step towards high quality products is the in-process control of selected parameters and the final inspection by the laboratory. Here, the tank is initially sealed after production and samples are taken from the top, middle and bottom areas. If the results demonstrate a homogenized and in spec quality, the production batch is released for sale.

Conclusion

High purity and consistently high solvent quality are of great importance in the formulation of agrochemical products. Haltermann Carless has been an important manufacturer and supplier of → aromatic solvents for the agricultural industry for more than 70 years. With extensive analyses in our own laboratory, reproducibility of the test data, separate distillation columns, in-process controls and final inspections, we continuously ensure the best quality of our Caromax^® aromatic solvents.