SDWA Corrosivity (Langlier Index) Back Catalog number: 55121 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C16176000 Phthalic acid, bis-phenyl ester, certified, 0.5g Price on request 681953 Paraoxon-ethyl, 10.0 µg/ml, Acetone, 10ml Price on request 9699.6 4-Bromo-2-nitroaniline, , Solvent-, Unit , # of units-, Cas.no. 875-51-4 Price on request