tender for purchase of chemicals , purchase of chemicals and glassware , dimethyl sulphoxide purity- 99% - 500 ml , n-methyl-2-pyrrolidone (nmp) analytical grade (a.r.) - 500 ml , potassium hydroxide, pellet form, assay: = 84% carbonate (as k2co3): = 2.0 %, heavy metals (as pb): = 0.002% - 500 g , potassium hydrogen carbonate (purity: = 99%, heavy metals: 0.001%) - 500 g , cobaltous nitrate hexahydrate artm/acs assay: = 99% - 250 g , copper (ii) nitrate trihydrate hexahydrate artm/acs assay: = 99.5% - 500 g , manganese (ii) chloride tetrahydrate artm/acs assay: = 98% - 500 g , cerium (iii) nitrate hexahydrate artm/acs assay: = 99% - 100 g , sodium tungstate dihydrate ar/acs assay: = 99% - 100 g , sodium molybdate dihydrate ar/acs assay: = 99.5% - 100 g , stannous chloride dihydrate ar/acs assay: = 98% - 100 g , zinc chloride, dry ar/acs assay: = 98% - 500 g , hydrofluoric acid, 48% pure, ar/acs - 500 ml , sodium hypochlorite ar/acs (4% w/v solution) - 1l , sodium nitroprusside dihydrate ar/acs assay: = 99% - 100 g , d-(+)-glucose anhydrous ar/acs assay: = 99.5% - 500 g , graphite sheet (electrode material) thickness 1 mm, w x h: ~200 x 200 mm, high temperature resistance, corrosion resistance, self durability , tissue paper roll, weight: 200g roll , micro centrifuge tube p.p with high fit attached caps, 1.5 ml p.p autoclavable , micro centrifuge tube p.p with high fit attached caps, 2.0 ml p.p autoclavable , alumina boat, high alumina combustion boat with tail and hole, alumina boat cap 55 ml