Sulfate (SO4-2), 1000µg/ml in Water, 100ml Back Catalog number: 54106 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 59927 Fluoride (F-), 10µg/mL in Water, 500ml Price on request N-13013-250MG Phenyl mercuric chloride(Technical), 250mg Price on request 54139 Sulfide (S), 1000µg/mL in Water, 3 x 20ml Price on request