tender for purchase of chemicals , purchase of chemicals , screw cap oakridge centrifuge tube round-bottom translucent & autoclavable withstands 50,000 x g. leakproof 50 ml capacity (1pack) , nitrile gloves powder free small - 1x2 medium - 1x1 large - 1x1 , pasteur pipette (3 ml) (1 pack) , lab brushes (nylon bristles head on wire handle) small (5 cmx 5) medium (15 cmx5) large (30 cmx5 , tissue paper (role type) , aluminum foil (food grade) , hydrochloric acid (a.r grade thermocole pack) (2.5 l) , nitric acid (a.r grade thermocole pack) (2.5 l) , sulfuric acid (2.5 l) , n, n-dimethylformamide (ar grade conforms to acs specifications) (500 ml) , ethylene glycol (ethanediol) (99% pure) (2.5 l) , potassium hydroxide (pellets 85% assay 2.04g/cm3 density) (500 gm ) , potassium hydrogen carbonate (99% purity) (500 gm ) , acetone (99% purity) (2.5l ) , nickel foam (99% nickel pores per inch: 110 size: 20 x 30 cm thickness: 1.5 mm) , graphite sheet (10 x 10 cm) , sodium tungstate (a. r grade 99% purity ) (100 gm ) , cerium nitrate hexahydrate (a. r grade 99% purity ) (100 gm) , nickel nitrate (a. r. grade 98% purity) (250gm ) , sodium molybdate (a. r. grade 98% purity) (100 gm) , tantalum(v) chloride (99.8% trace metal basis) (5g ) , niobium(v) chloride (99.9% metal basis) (5g) , potassium nitrate-15n (white powder 15n labeled potassium nitrate 98 atoms % 15n isotopic mass shift: m+1) (250 mg) , carbon paper (100 mm l x 100 mm w 0.4-micron thickness 0.4-0.7 g/cm3 density)