Chemical Refractometer Concentration Measurement
Chemical Refractometer Industry Description
Many chemicals are sold and shipped as solutions. Both suppliers and end users want to know the exact concentration of the solution. That concentration determines the value of the material and, from a users point of view, how much is added to the process mixture. A chemical refractometer is an extremely quick way to validate starting material purity, measure concentrations, and validate mixture end points. Our rugged instruments can be located in a load out area or beside a production line, not just in a lab.
Reasons to Choose Rudolph
- Chemical measurement needs temperature control, not correction, and all Rudolph chemical refractometers from the J57 above have this.
- Money is often changing hands on the result so being able to prove calibration to ISO or similar is essential.
- Many solvents have Refractive Indices(RI) outside of the range that a food refractometer can measure; a specialty chemical model is needed.
Typical Rudolph Users
- Most countries now require that urea solutions be a part of diesel exhaust emission systems. This fluid goes by different names such as Adblue, DEF and ARLA. Manufacturers like YARA and distributors like BRENNTAG use Rudolph.
- Manufacturers of polymers like Nylon need to monitor raw material solutions. Dupont / Kordsa are just one of many Rudolph users.
- Urea Formaldehyde and Phenol Formaldehyde resins are critically important to the wood industry. Manufacturers like Hexion and Dynea use Rudolph as part of process control.
Refractometer Selections by Industry
- Food and Beverage
- Sugar Milling, Refining, Processing
- Pharmaceutical and Toxicology Testing
Refractometers for Water Based Chemicals:
- Fine chemicals
Refractometers for Petroleum Based Chemicals:
- Oil based paints
- Fine chemicals
All J Series refractometers are designed for high chemical resistance from the outset with the wetted parts being sapphire, Tectron® and 316 stainless steel. However, when using HCl and other caustic compounds, 316 stainless steel is not resistant enough. For these applications Rudolph offers an extended chemical resistance option where the sample dish and cover are made from Hastelloy (H Option).
Hastelloy Suggested Applications
- Hydrofluoric acid at all concentrations
- HCl and similar acids at all concentrations
- Strong alkalis
- Strong oxidizing agents
For plastic manufacturers who measure liquids and solids like PET, Rudolph has a Contact Presser (CP) with extra weight.
(CP) Option Suggested Application
- PET: polyethylene terephthalate