LabChem

Ferroin Oxidation-Reduction Indicator

Ferrous Ammonium Sulfate, 0.1N (0.1M)

Ferrous Ammonium Sulfate, 0.4N (0.4M)

Magnesium Sulfate, 2.25% w/v, for BOD

Ammonium Oxalate, Saturated Solution

Ammonium Phosphate, 40%, for Sulfide

Barium Hydroxide, Saturated Solution

Calcium Chloride, 2.75% w/v, for BOD

Citric Acid, 1.0M (3.0N), for Radium

Color Standard, Pt-Co, 10 Units APHA

Color Standard, Pt-Co, 25 Units APHA

Copper Sulfate, 2g/L, for Morpholine

Magnesium Chloride, Hexahydrate, ACS

Nitric Acid, 20% v/v (1+4), for Lead

Phenylarsine Oxide, 0.025N (0.0125M)

Conductivity Standard, 15,000µmho/cm