Latest eriochrome black Tenders | Government eriochrome black Tenders

corporations/Associations/Others

CTN :41384514

26 Sep, 2025 4.54 Crore

Jodhpur - Rajasthan

Tender For corrigendum : rate contract for purchase of various items for repair of failed distribution transformers at nigams workshop - alu lv strip (size as required) dpc(variable with base date 1.6.25), alu hv bare (size as required) semc(variable with base date 1.6.25), cotton tape 1, sleeve 1 mm, 20 mil paper 30, 4 mil paper 24, 4 mil paper 26, 4 mil paper32, 4 mil paper 30, gum, 10 mil paper 20, core clamping insulation 2 mm, yoke various sizes mm, common block various sizes mm, oil duct various sizes mm thickness, stick various sizes mm, wooden spacer 45x45x15 mm, spacer 45x45x3 mm, ring 136x201x2 mm, delta flat 480x30x5 mm, lv chips 380x6x1 mm, foot plate paper 2 mm, p.c phase barrier various size mm, nut g.i.various sizes, washer g.i.various sizes, bolt g.i.various sizes, delta wire various sizes, earthing patti 1 mm thickness tinned copper 20mmx1mm, aluminium flat various sizes mm, delta patti, sleeve 8 mm, sleeve 4 mm, sleeve 6 mm, sleeve 10 mm, sleeve 12 mm, sleeve 1.5 mm, sleeve 2 mm, 1/2 nut g.i., 1/2 lock nut g.i., 1/2 washer g.i., flux, solder wire, copper brazing rod, aluminium brazing rod, brazing powder (l&t), crepe tape 1, 1/2 bakelite, 3/8 bakelite, hv bushing (porcelain,), hv bushing (metal part) complete set, lv bushing (porcelain,), lv bushing (metal part) complete set, ehv grade type-ii transformer oil ( with drum )(variable with base date 1.6.25), prv valve (virat), pvc cap 1/2, ci cap 1.25, paint (green/red/yellow/white/blue), thinner, zinc chromate, cork washer 12x32mm,110x74mmx50x28mm, top cover gasket 50x50x6 mm, oil gauge prismatic glass various size, oil gauge gasket various sizes, oil gauge washervarious sizes, oil gauge nut various sizes, vent pipe gasket 110x110x3 mm, hv clamp, aluminium member, m.s nuts,bolts,washers various sizes, mccb for box 32 amp, mccb for box 40 amp, mccb for box 63 amp, mccb for single phase 25amp, mccb for single phase 40amp, mccb for single phase 63amp, mccb box gasket 500x250x5 mm, silica gel breather, hv bmc, arcing horn with strip & nut bolt, candles mom, backalite sheet 0.50 mm thickness 60x60 mm, u clamp 70 x 50 x 70 mm prv, u clamp ci cap 50x50x50 mm, cloth, lt internal/ oil immerged circuit breaker assorted rating, holdtite, 1/4x2.5 bolt brecker, 1/4 nut brecker, aluminium lugs (various sizes), paint gun, engraving machine, hv farma (size as required), lv farma (size as required), grinder cutter wheel 4, lt bushing box

State Government

CTN :41797261

26 Sep, 2025 1.99 Lacs

Deoria - Uttar Pradesh

Tender For supply of silca gel : : - log sheet1 , log sheet2 , log sheet3 , log sheet4 , log sheet5 , register1 , register2 , register3 , register4 , register5 , register6 , register7 , silica gel blue , silica gel breather

Central Government/Public Sector

CTN :41799696

03 Oct, 2025 NA

Muzaffarpur - Bihar

Tender For supply of chemical d d - coomassie brilliant blue g 250 , bovine serum albumin , barium carbonate ar , tri-sodium citrate , nutrient broth , nutrient agar 1 point 5 , agar powder bacteriological grade , peptone bacteriological , hm peptone b agar , yeast extract powder , sodium chloride ar , potato dextrose agar granulated , d glucose , iodine solution , gallic acid , lactophenol cotton blue , immersion oil low , crystal violet , safranin , ammonium metavandate ar , ammonium molybdate ar , ammonium ferrous sulphate , sulfuric acid pure ar 2 point 5 litre , chloroform ar 500ml , ferroin indicator 100ml , diphenylamine ar 250 gm , orthophosphoric acid abt 88percent ar 500ml , sodium fluoride extra pure and ar 500gm , potassium hydrogen phthalate 100gm , sodium bicarbonate ar 500gm , silica gel 60 200 mesh 74 250 mm 500gm , l-ascorbic acid ar 100gm , p-nitrophenol 5gm , potassium dihydrogen orthophosphate lr 500gm , ammonium acetate ar 500gm , acetic acid glacial ar 500ml , potassium chloride ar 500gm , calcium chloride dihydrate ar 500gm , barium chloride dihydrate ar 500gm , ammonium chloride ar 500gm , hydrochloric acid 35 percent ar 500ml , eriochrome black t 25gm , hydroxylamine hydrochloride ar 500gm , edta disodium salt dihydrate ar 500gm , magnesium chloride hexahydrate ar 500gm , diethylenetriaminepentaacetic acid dtpa 500gm , oxalic acid ar 500gm , azomethine h monosodium salt hydrate 5g , l tartaric acid ar 500gm , tri sodium citrate dihydrate ar 500gm , sulphamic acid ar 500gm , dextrose agar 100gm , perchloric acid about 60 percent ar 500ml , nitric acid min 69percent pure ar 500ml , bromocresol green indicator 125 ml , methyl red indicator 125 ml , phenolphthalein 0 point 1 125ml , potassium sulphate ar 500gm , 1 3 5triphenyltetrazolium formazan 5gm , 2 3 5 triphenyltetrazolium chloride ar 10gm , potassium hydroxide pellets ar 500gm , triethanolamine ar 500ml , antimony potassium tartrate trihydrate ar 500gm , gum acacia, powder 500gm , calcium carbonate ar 500gm , calcon indicator 5gm , magnesium oxide heavy ar 500gm

Central Government/Public Sector

CTN :41799796

03 Oct, 2025 38.7 Thousand

Hazaribag - Jharkhand

Tender For supply of orthophosphoric acid ar grade , ammonium acetate ar grade , sodium hexametaphosphateextrapure ar 65 70 , calcium chloride dihydrate acs 99 , diethylenetriaminepentaacetic acid dtpa extrapure ar 99 , triethylamine tea extrapure ar 99 5 , eriochrome black t extrapure ar , murexide ammonium purpurate extrapurear 98 , phenolphthalein extrapure ar 99 , methyl red extrapure ar , methyl orangeextrapure ar , potassium chromate extrapure ar 99 5 , ammonium ferric sulphate dodecahydrateextrapure ar acs 99 ammonium iron iii sulphate dodecahydrate ferric alum , diphenylamine extrapure ar 99 part a , methylene blue trihydrate , bromocresol green bcg extrapure ar , potassium ferricyanideextrapure 98 , pycnometer , bod bottles

Central Government/Public Sector

CTN :41777864

01 Oct, 2025 3.00 Lacs

Udaipur - Rajasthan

Tender For supply of electrical items - led round light recessed mounted 18 watt with base , led tubelight , led tubelight 10watt , dummy switch blanker , float switch 10-16amp 2meter cable , 1.5sqmm wire red , 1.5 sqmm wire black , 2.5 sqmm wire red , 2.5 sqmm wire black , 2.5 sqmm wire green , 4 sqmm wire green , 2.5 sqmm 3core cable , mcb 4pole 32amp , battery 1.5v aa standard 2x long lasting , battery 12v 7ah quanta , battery 12v 12ah quanta , battery 12v 18ah quanta , led bulb-9w e-27 , heater thermostate 9 inch long 20amp for solar , heat pump element 6kw, dia-32mm , heat pump element 6kw, dia-25mm , tube rod fly catcher machine 2 feet long , crc 2-26 electrical contact cleaner , ups 1kva selectable charger smf compatible , panel lock , panel indicator red-30,yellow-20, blue-20 , 33kv fuse 3.15amp. , switch plate 8 module , pu foam 750ml , pvc round sheet 4 inch , 1.5 sqmm 3core cable , switch 16 amp myrius , pvc nail clip 9mm , pvc conduit pipe 20mm , pvc conduit pipe 25mm , mcb box 4pole ip65 , saddle clamp 25mm , blue silica gel crystal 20mm for transformer

Central Government/Public Sector

CTN :41777923

06 Oct, 2025 32.55 Lacs

Umiam - Meghalaya

Tender For tender for supply of copper sulphate (hi-arm), potassium sulphate (hi-ar), boric acid (hi-ar), methyl red hi-certm/acs, methyl red indicator, methylene blue, sodium hydroxide (naoh), petroleum ether (60-80 °c), hydrochloric acid abt. 35% pure, hi-artm, in hydrochloric acid solution, 2,2-diphenyl-1-picrylhydrazyl (dpph), nutrient agar, nutrient broth, methanol, chloroform, hi-artm, abts (2, 2'-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid), sodium sulfate anhydrous, acetic acid glacial, hi-artm, potassium iodide, hi-arm, sodium thiosulphate, 0.in, sodium thiosulphate anhydrous, hi-artm, starch, potassium permanganate, formaldehyde sol 37-41%, hi-lrtm, hiclean (liquid soap), empty tip box, autoclavable, for 1000 µl tips, manganese (ii) sulphate monohydrate, salicylic acid, hi-arm, sodium azide. hi-artm, edta free acid, hi-artm, ammonium chloride, hi-art™, sodium chloride, hi-artm, silver nitrate, hi-artm, potassium chromate, hi-artm, sulphanilamide, hi-artm, potassium nitrite, hi-art™, cupric sulphatepentahydrate, hi-artm, hydrazine sulphate, hi-art™, sodium nitroprussidedihydrate, hi-arim, sodium hypochlorite, hi-artm, potassium antimony (iii) oxide tartrate, trihydrate, hi-artm, ammoniummolybdatetetrahydrate, hi-artm, l-ascorbic acid, hi-artm, bromocresol green indicator, eriochrome black t, hi-cert™, n-(1-naphthyl)ethylenediaminedihydrochloride, hi-artm, acetone, hi-artm, ammonium sulphate, hi-artm, calcium chloride dihydrate, hi-artm, diphenylamine, hi-artm, ferrous ammonium sulphatehexahydrate, hi-artm, manganese (ii) carbonate, potassium dichromate, hi-artm, sodium hexametaphosphate. hi-artm, sodium bicarbonate, hi-arm, potassium dihydrogen orthophosphate, monobasic, hi-artm

CTN :41606004

18 Sep, 2025 NA

Bokaro - Jharkhand

Tender For corrigendum : laboratory chemicals and apparatus for tpp lab and environment lab. - lab items to be supplied, ammonium chloride reagent grade in 500 gm. pack grade: ar/emparta/ermake: merck / qualigens, ammonia liquor (25%) in 2.5 ltr. packgrade: ar/emparta/ermake: merck / qualigens/thermofischer, hydrochloric acid (35%) in 500 ml. packmake: merck, stannous chloride in 100 gm. packgr/emparta/er make: merck / qualigens, edta (disodium salt) in 100 gm. packmake: merck / qualigens/, potassium meta bi sulphite in 500 gm. packlr/emp/sq, oxalic acid in 500 gm. packgr/emparta/ermake: merck / qualigens / rankem, potassium sodium tartrate in 500 gm. packgr/emparta/ermake: merck / qualigens, barium hydroxide in 500 gm. packmake: merck / qualigens, sodum carbonate anhydrous ar in 500 gm. pack, murexide 98% in 5gm. packmake: merck / qualigens, methyl orange pure in 25 gm. packmake: merck / qualigens, potassium iodide in 100 gm. packmake: merck / qualigens/, phenolphthalein pure in 100 gm. packmake: merck / qualigens, potassium di chromate in 500 gm. packgrade: gr/emparta/er, laboratory beaker, graduated, low form, 500 ml. capmake: borosil/merck/ fisherbrand, conical flask-250 ml. cap.conical flask-250 ml. cap.make: borosil/merck/fisherbrand, pipette 5 ml cap bulb typemake: borosil/merck, laboratory beaker with spout, graduated, low form capacity: 250 ml.make: borosil /merck, ph electrode, range- 0 to 14 ph(pp body), laboratory flask, volumeteric, 500 ml. cap, with graduation, with stoppermake: borosil/merck/ fisherbrand, laboratory flask, volumeteric, 250 ml. cap, with graduation, with stoppermake: borosil/merck/ fisherbrand, laboratory flask, volumeteric, 100 ml. cap, with graduation, with stoppermake: borosil/merck/ fisherbrand, laboratory cylinder graduated-25 ml. cap, without stopper, 0.5 ml. sub-division, with spout, fixed basemake: borosil/merck/ fisherbrand, laboratory cylinder graduated-50 ml. cap, with stopper, 1ml. sub-division, with spout, fixed basemake: borosil /merck/ fisherbrand, laboratory cylinder graduated-100 ml. cap, without stopper, 1 ml. sub-division, with spout, fixed basemake: borosil /merck/ fisherbrand, laboratory cylinder graduated-500 ml. cap, with stopper, 5 ml. sub-division, without spout, fixed basemake: borosil /merck/ fisherbrand, laboratory beaker, graduated, 01 l cap, borosilicate glass, low form, with spoutmake: borosil/merck/ fisherbrand, ammonium molybdate in 01 kg. packgrade: gr/ emparta /ermake: merck/qualigens, metol in 100 gm. packmake: loba, sodium hydroxide ampoules [1n] soln. in 2/3 ampoules pack.make: merck/qualigens, eriochrome black t, in 100 gm. packmake: merck/qualigens, hydrochloric acid ampoules [1n] soln. in 2/3 ampoules pack.make: merck/qualigens, methyl red in 25 gm. packmake: merck, methanol in 2.5 ltr. packgr/emparta/ermake: merck / qualigens / rankem, mercuric iodide (emplura/sq) in 100 gm.packmake: merck / qualigens, sodium hydroxide (powder) in 500 gm. packgr/ emparta/ermake: merck / qualigens, ethanol, reagent grade, purity: 99% in 500 ml. pack, potassium hydroxide pellets (emparta / er) in 500 gm. packmake: merck / qualigen, pyregallol (emplura / er) in 100 gm. packmake: merck / qualigens, dimethyl amino benzaldehyde in 100 gm pack, (gr/emparta / er)make: merck / qualigens, glycerol anhydrous (emparta/ar/gr/er acs) in 500 ml. packmake: merck / qualigens, universal (ph) indicator in 500 ml. packmake: merck / qualigens, sulphuric acid (98%) analytical grade (ar/emparta/er) in 2.5 ltr. packmake: merck / qualigens / rankem, chlorotex reagent in 100 ml. packmake: qualigens, silica test reagent (0.005 to 1 mg/l) sio2make: hach / merck, hydrazine test reagent (4-600 g/l)make: hach / merck), phosphate test reagent(0.25 to 30 mg/l)make: hach / merck, iron test reagent (1 mg/l)make: hach/merck, chloride test reagent (0.1 to 25 mg/l)make: hach/merck, sulphate test reagent (2-70 mg/l)make: hach/merck, ammonia test reagent (0.02-2.5 mg/l)make: hach/merck, copper test reagent (0.02-2.5 mg/l)

Central Government/Public Sector

CTN :40995287

23 Sep, 2025 NA

Bilaspur - Chhattisgarh

Tender For procurement of fine chemicals for laboratory uses. - ammonia, acetone,ar/gr/excelar/emparta, ferrous ammonium sulphate,ar/gr/excelar+, ammonium molybdate,ar,1kg, ammonium purpurate,ar, ammonium thiocyanate,ar/gr/excelar+, ansa,ar/gr/excelar/emparta,100gm, copper sulphate,ar/gr/excelar/emparta, dextrose glucose,anhydrous,ar/gr+, eriochrome black t,indicator,25gm, diisopropylamine,f/sodium analyzer, methanol dried,ar/gr/excelar/emparta, ethanol,ar/gr/excelar/emparta,500ml, hexamine, manganous sulphate,monohydrate, hydrazinium sulphate,ar/gr/excelar+, methanol,ar/gr/excelar/emparta,2.5l, quinhydrone,ar/gr/excelar/emparta, silver sulphate,gr, sodium azide,ar/gr/excelar/emparta, soda lime pellets, ferrous (ferrozine),ar,1gm, formic acid,ar/gr/excelar/emparta, acetic acid glacial,ar/gr/excelar+, mercuric iodide,ar,99%,red, mercuric thiocyanate,75gm, methyl red,powder, methyl orange,ar, para-dimethylaminobenzaldehyde,ar,100gm, petroleum ether,c6h14,lr,2.5l, nitric acid,2.5l, oxalic acid,c2h2o4,ar/gr/excelar/emparta, sodium hydroxide pellets,gr,500gm, toluene,ar/gr/excelar/emparta, thioglycolic acid,ar/gr/excelar/emparta, ascorbic acid,ar/gr/excelar/emparta, sodium thiosulfate,ar/gr/excelar/emparta, starch soluble,lr,500gm, phenolphthalein,ar,50gm glass, pyrogallol,ar, potassium hydrogen phthalate,ar/gr+, sulphuric acid,ar,98%,2.5l, sodium diethyldithiocarbamate,ar/gr+

Central Government/Public Sector

CTN :41596971

23 Sep, 2025 42.58 Lacs

Visakhapatnam - Andhra Pradesh

Tender For corrigendum : provision of external electric supply for 661 sailors inliving accommodation at visakhapatnam - supply, installation, testing and commissioning of outdoor type step down transformer 1000 kva 11kv/433v dyn11 oil filled (onan) distribution transformer double copper wound with radiator wall with conservator tank & porcelain bushing for ht, lt with off circuit tap changer, marshalling box all as per is 1180 (part-1) : 2014, bee certified, energy efficiency level ii (as per latest ammendment no 4) complete as directed., a) off circuit tap changer (octc), tapping range +5% to -10% in a steps of 2.5% per step (7 positions)b) temp. rise shall be 40/45 deg. c for oil/winding resp. over an ambient of 50deg.c tempc) insulation class: ad) losses ( subject to is 1180 efficiency level 2/ star 2 as per latest amendment 4) max. total loss @ 50% loading: 2620 w and max. total loss at 100% loading: 7000 w.e) % impedance (%z) shall be 5.00% (subject to is tol.)f) rating & diagram (r&d) plate (fitted on transformer)g) oil temp. indicator (oti) with alarm and trip contacth) winding temp. indicator (wti) with alarm and trip contactj) rated temp class of transformer compartment k10 upto 1000kvak) lifting lugs/ hooks for transformer.l) oil filling inlet pipe with plug.m) air release valve and drain out pipe with plug.n) conservator tank with level guage.o) silica gel breatherp) first oil fill up to recommended level by manufacturer with new oil as per is 335.q) cable terminal boxes with bushes on both ht and lt sides.r) hv winding: delta & lv winding: star.note: civil work for the construction of foundation including necessary earthwork etc is deemed to be included in quoted rates of the item., supply and fixing main lt panel cpri approved made out of crca sheet 3.15 mm thick outdoor pedestal type totally enclosed with front and rear opening, hinged doors with projected an raised platform of suitable size, weather and water proof with necessary locking arrangements along with lugs, cable glands of various sizes for cables, danger notice plate, strickering of switcher gear about termination of switch gear, and the nuts/ bolts etc used are to be made of rust proof material incl as per al bus bar rated with insulators suitable for three phase and four wire lt ac, 50 hz 415 v 2000 a capacity complete with powder coating, necessary internal electric connection as required and provision of the following : (main lt panel)., incoming:air circuit breaker 1600 amps, 50 ka, mdo type, 4 pole, micro processor release, with adjustable type overload protection, short circuit protection, with necessary cts, meters and cable boxes. - 1 no.outgoing:a) mccb 250 amps, 25 ka, 4 pole, suitable for capacitive loads, thermal magnetic release, with adjustable type overload protection, short circuit protection - 07 no (bldg vtpn 02 nos, bldg panels 04 nos + spare)b) mccb 140 amps, 25 ka, 4 pole, suitable for capacitive loads, thermal magnetic release, with adjustable type overload protection, short circuit protection - 01 no (dg amf panel)c) mccb 160 amps, 25 ka, 4 pole, suitable for capacitive loads, thermal magnetic release, with adjustable type overload protection, short circuit protection - 01 no (ff panel)d) mccb 100 amps, 25 ka, 4 pole, suitable for capacitive loads, thermal magnetic release, with adjustable type overload protection, short circuit protection - 01 no (apfc panel)e) intelligent panel meter to measure voltage, current, frequency, power factor, kwh etc with all connected cts.f) led indicating lamps with colour red, yellow, blue of 03 sets.note: civil work for the construction of foundation including necessary earthwork etc is deemed to be included in quoted rates of the item., supply & fixing of perforated gi cable tray of size 150 mm width x 50mm depth x 1.6mm thickness with perforations not more than 17.5% in convenient sections, joined with connectors, suspended from the ceiling with gi suspenders including bolts & n

Central Government/Public Sector

CTN :41739317

29 Sep, 2025 2.36 Lacs

Hazaribag - Jharkhand

Tender For supply of ethanol , magnesium oxide , calcium carbonate , ammonium hydroxide , hydroxylamine hydrochloride , magnesium nitrate hexahydrate , magnesium sulphate , orthophosphoric acid 85 , 0 005n naoh , n octyl alcohol , magnesium oxide powder , sulphamic acid , mono calcium phosphate monohydrate , calcium nitrate , carmine , dtpa , hydroxylamine hydrochloride 99 , mannitol 99 , salicylic acid , calcon , aluminon , thioglycollic acid , aluminium chloride , tryptone , toluene 99 , fluorescein diacetate , fluorescein , l ascorbic acid , ammonium acetate , ammonium fluoride , ammonium molybdate tetrahydrate 99 , antimony potassium tartrate , barium chloride , boric acid , bromocresol green , calcium chloride dihydrate , calcium sulphate dehydrated powder , copper sulphate pentahydrate , diphenylamine indicator , eriochrome black t , ammonium ferrous sulphate , glacial acetic acid , gum acacia , methyl red , methanol , phenolphthalein , p nitrophenol 98 , potassium chloride , potassium dihydrogen o phosphate , potassium dichromate , potassium permanganate , sodium bicarbonate , sodium fluoride , sodium hexametaphosphate , sodium hydroxide pellets , triethanolamine tea , 2 3 5 triphenyl tetrazolium chloride , 1 3 5 triphenyltetrazolium formazan , nitric acid 68 70 , sulphuric acid 98 , perchloric acid 70 , chloroform , sodium polytungstate , hydrochloric acid , ammonia solution 25 , visking dialysis tube 22mm diameter , hydrofluoric acid 48 , charcoal activated , devardas alloy 45 al 50 cu 5 zn ar acs pack of 250g , ammonium metavendate , triethanol amine , acetone 99 , ctab cetyltrimethyl ammonium bromide 99 , 2 octanol , tannic acid , sodium tungstate dihydrate 99 , phosphomolybdic acid 99 , sodium carbonate anhydrous 99 , nutrient agar , nutrient broth , agar powder purified bacteriological grade , aleksandrow agar , azospirillum medium w 0 17 agar twin pack , jensen s medium agar , king s medium b base w 1 5 agar , nutrient broth , pikovskaya s agar , yeast mannitol agar w congo red , zinc solubilizing agar , peptone bacteriological

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