Sodium polytungstate,purum p.a., for the preparation of heavy liquid, >=85% WO3 basis

Sodium selenite,anhydrous, >=90.0% (RT)

Borax Anhydrous,BioUltra, anhydrous, >=99%

Sodium metavanadate,>=98.0% (RT)

Sodium tungstate dihydrate,BioUltra, >=99.0% (T)

Nicotinic acid,>=99.5% (HPLC)

Nicotinamide,>=99.5% (HPLC)

Sodium (meta)periodate,>=99%

p-Phenylenediamine,>=99.0% (GC/NT)

m-Phenylenediamine dihydrochloride,>=99.0% (AT)

Citric acid,anhydrous, free-flowing, Redi-Dri™, ACS reagent, >=99.5%

Imidazole,anhydrous, free-flowing, Redi-Dri™, ACS reagent, >=99%