Latest zinc chloride Tenders | Government zinc chloride Tenders

CTN :42756073

01 Dec, 2025 1.20 Lacs

Kollam - Kerala

Tender For purchase of chemicals for zoology and chemistry departments - department of chemistry, con hydrochloric acid 500ml, con nitric acid 500ml, con.sulphuric acid 500ml, liquour ammonia 500ml, potassium bromide 500g, potassium bromate 500g, ammonium carbonate 500 g, ammonium chloride 500 g, oxalic acid 500 g, ferrous ammonium sulphate 500g, phenolphthalein 125ml, methyl orange 125ml, sodium hydroxide 500g, potassium chromate 500g, potassium dichromate 500g, manganese acetate 500g, manganese dioxide 500g, ferrous sulphide 500g, strontium acetate 500g, barium chloride 500g, hydrogen peroxide 30%, lead dioxide 500g, potassium sulphate 500g, premium water testing kit for 17 parameters, watmann filter paper 40 (pckt), stannous chloride 500g, ethanol 500ml, acetophenone 500ml, benzaldehyde 500ml, aniline 500ml, sodium carbonate 500g, phenol 500ml, resorcinol 100g, sodium thiosulphate 500g, s-benzyl thiouronium chloride 500g, urea 500g, sodium hydrogen carbonate 500g, glacial acetic acid, 500ml, lead nitrate 500g, ferrous sulphate,500g, sodium bisulphite, 500g, ph indicator paper pckt, sodium acetate anhydrous 500g, sodium arsenate 500g, ninhydrin 100g, iodine tincture 100ml, cobalt nitrate, benzoyl chloride 500ml, molisches reagent, 125ml, acetone 500ml, isopropanol 500ml, glycerol 500ml, carbon tetrachloride 500 ml, starch 500g, department of zoology, formalin,5l, chloroform,500ml, methylene blue100ml, acetocarmine,100ml, blood group antiserum,10ml, leishmans stain,125ml, sodium chloride,500gm, amino acid -glycine20mg, alanine,20mg, proline,20mg, leucine,20mg, n butanol,500ml, acetic acid,500ml, mnso4,500gm, ki,500gm, h2so4,500ml, ph buffer tablet,4,7and 9- one bottle, naoh,500gm, hcl,500ml, isopropanol,500ml, acetone,500ml, sodium thiosulphate solution 0,01 n,500ml, oxalic acid solution,500ml, sodium hydroxide solution for carbon dioxide estimation,500ml, phenolphthalein indicator,100ml, na2co3,500gm, cuso4,,500gm, manganous sulphate,500gm, potassium sodium tartarate,200gm, alkaline copper solution,250ml, folin ciocalteau reagent reagent d,100ml, ferric chloride,250ml, biuret reagent,200ml, ninhydrin solution,100ml, koh,500gm, cholesterol powder,100gm, neutral alcohol,500ml, ethanol,5l, anthrone reagent,200ml, edta,50gm, isoamyl alcohol,250ml, sodium acetate,250gm, sodium carbonate,250gm, safranin,100ml, crystal violet,100ml, grams iodine,100ml, folins reagent,125, sodium citrate,200gm, schiffs reagent,125ml, maltose,500gm, glucose powder,500gm, nacl,500gm, bromophenol blue,100ml, xylene,500ml, dpx,250ml, ethanol,2l, nutrient agar,500ml, kovacs reagent,100ml, peptone broth, barritts reagent,100ml, methyl red indicator,250ml, janus green stain,100ml, hand wash liquid,250ml, glacial acetic acid, 500ml

CTN :42813883

29 Nov, 2025 2.11 Lacs

Palakkad - Kerala

Tender For purchase of chemicals to chemistry, zoology and botany departments - purchase of chemicals, ammonia solutions, ammonia chloride, edta, eriochrome t powder, pottassium iodine, sodium chloride, lactose, maltose, dextrose, molish reagent, fehlings solutions 1, fehling solutions 2, benedicts solution, seliwanoffs reagent, phenolphthalein indicator, moores reagent, barfoeds reagent, sudan iv powder, antiserum abd kit, bllod lancet pack, methlene blue, silica gel, isopropanol, medispirit, chlorofoam, ethanol, isopropanol, acetone, petroleum ether, glucose, acetocarmine, molish/s reagent, gram staining kit, tris hcl, nacl, edta, sds, sodium acetate, isoamyl alcohol, agarose gel, tris base, acetic acid, sodium edta, bromophenol blue, sucrose, ethidum bromide, c tab, beta mercapto, benedicts reagent, seliwanoffs reagent, iodine, copper sulphate, nitric acid, conc. sulphuric acid, mercuric sulphate, nutrient agar, silica (powdered), transparent apoxy, phenol ar, ammonium chloride ar, sodium carbonate ar, hydrochloric acid, sulphuric acid, naphthalene powder, biphenyl, biphenyl amine, acetone, pottassium iodine, ferrous sulphate, ammonium ferrous sulphate, ammonium acetate ar, sodium fluride, sodium hydroxide pellets, glycerol, n phenyl anthralinic acid, filter paper grade: 40: circle diameter 110mm, filter paper grade: 41: circle diameter 90mm, methlyene blue, ninhydrin, hydrogen peroxide 30%, benzoin, meta dinitro benzene, acetanilide, aniline, methyl salicylate, hexane, dichloromethane, ethyl acetate, benzophenone, 2 2 diphyenly-1-picryl hydrazyl, ethanol, sodium borohydride, phenolphthalein powder, magnesium nitrate, lead nitrate

CTN :42865634

29 Nov, 2025 2.00 Lacs

Kozhikode - Kerala

Tender For chemical purchase for lab - physics, bismuth(iii) nitrate pentahydrate, 100 gm , acs reagent, 98.0%, tungsten(vi) oxychloride 98%,, titanium (iv) isopropoxide, 100 ml,97.0%,, aceton 2.5 l,ar grade, isopropanol 2.5 l, ar grade, triethanolamine 500 ml, diethanolamine 500 ml, rhodamine dye, 25 gm, methylene blue dye 25 gm, sodium hydroxide 500 gm, pottassium hydroxide 500 gm, zirconium(iv) propoxide solution 70 wt. % in 1-propanol 100 ml, copper(ii) chloride reagent grade, 97%, 25 gm, nickel(ii) chloride, 98 %, 50 gm, poly(ethylene glycol) mw 8000, 250 gm, botany, ninhydrin solution 100 ml, sodium hydroxide solution 1 n (lab grade 500 ml), molisch reagent solution 100 ml, barford s solution 100 ml, gram s iodine 100 ml, biuret reagent, solution 125 ml, sodium sulphate anhydrous extrapure ar, 99.5%, 500gm, cas no 7757-82-6, dimethyl sulphoxide (dmso) extrapure ar grade, 99.5%, 500ml, cas 67-68-5, molecular formula : c2h6so, storage : room temperature, shelf life : 60 months for laboratory use, laboratory ware cleaning soap solution-labolene or teepol 1 l pack, hand wash 200 ml,, zoology, lugols iodine, 500 ml, spirit for spirit lamp, 500 ml, methelene blue , 100 gm, surgical spirit, 500 ml, leishman stain , 25 gm, anti sera abd, 25 ml, chemistry, 4-methoxy benzaldehyde 250 ml, acetaldehyde 500 ml, acetanilide 500g, acetone 2.5 l, acetophenone 500 ml, acetyl acetone 250 ml, activated charcoal 500g, adipic acid 500g, ammonium carbonate 500g, ammonium chloride 500g, ammonium sulphate 500g, barium chloride a r 500g, barium nitrate 500g, benedict reagent 500 ml, benzaldehyde 500 ml, benzil 250g, biphenyl 500g, buta-2,3-dione 250 ml, calcium chloride 500g, chromatographic grade filter paper, cinnamic acid 500g, cyclohexanone 500 ml, dichloromethane 500 ml, diethyl ether 2.5l, ethyl acetoacetate 500 ml, zinc sulphate ar 500g, ethylene diamine 500 ml, ferrous ammonium sulphate ar(mohrs salt) 500g, glycerol 2.5l, hexamethylene diamine 500 ml, hexane 500 ml, hydrazine sulphate 100g, iodine crystals 250g, liquid detergent 5l, liquid hand wash 2l, liquor ammonia 2.5l, magnesium metal 500g, magnesium oxide 500g, magnesium sulphate 500g, mercuric sulphate 100g, methanol 2.5l, methyl salicylate 500g, naphthalein 500g, nickel sulphate 250g, o-hydroxy acetophenone 500g, ordinary filter paper, paraffin oil 500 ml, phenol 500 ml, phenylhydrazine 500 ml, phthalic acid 500g, potassium bromate 500g, potassium bromide 500g, potassium dichromate a r 500g, resorcinol 250g, rhodamine 6g 50g, salicylic acid 500g, silica for column chromatography 500g, silica gel 500g, silica powder for tlc 500g, silver sulphate 100g, sodium bisulphite 500g, sodium carbonate anhydrous 500g, thiourea 500g, tlc aluminium sheets 1 box, zinc chloride 500g, vanilline 500g, zinc acetate 500g

CTN :42721032

15 Dec, 2025 3.27 Lacs

Kannur - Kerala

Tender For supply of chemicals to various science departments of government brennen college thalassery - physics, calcium chloride fused, 99% purity, extra pure 500g , aldrich/merck /alfa aesar /gfs chemicals , ph paper 1-14 packets of 10 packets of 10 books with 10 leaves, aldrich/merck/fischer scientific/alfa aesar, pottassium bromide (kbr) for ftir spectroscpy 99.5% purity, extra pure, 500g, aldrich/merck /alfa aesar /gfs chemicals , isopropyl alcohol (ipa) 500 ml, 99% purity, aldrich/merck/fischer scientific/alfa aesar, cerium(iii) nitrate. hexahydrate 100g, extra pure ar(99.9% purity), aldrich/merck/fischer scientific/alfa aesar, strontium nitrate(anhydrous) 100g, 99% purity, aldrich/merck/fischer scientific/alfa aesar, lanthanum(iii) nitrate. hexahydate 100g, ar(99% purity), aldrich/merck/fischer scientific/alfa aesar, extran ma 02 neutral, 500ml ,aldrich/merck/fischer scientific/alfa aesar, potassium dichromate 500g, aldrich/merck/fischer scientific/alfa aesar, chemistry, ammonium oxalate monohydrate 99% ar/acs, 500g, lobachemie/aldrich/merck/gfs, calcium carbonate precipitated 99% ar,500g, lobachemie/aldrich/merck/gfs, zinc sulphate ,99.5% ar/acs, 500g, merck /sigma/aldrich/gfs, cobalt nitrate ,99.5% ar/acs, 100g, merck /sigma/aldrich/gfs, nickel sulphate e ,99.5% ar/acs, 100g, merck /sigma/aldrich/gfs, manganese chloride ,99.5% ar/acs, 500g, merck /sigma/aldrich/gfs, hexammine or hexamethylene tetramine, 99.5%, ar/acs, 500 ml, merck /sigma/aldrich/gfs, ferric alum, 99.5%, ar/acs, 500g, merck /sigma/aldrich/gfs, ammonium thiocyanate, 99.5%, ar/acs, 500g, lobachemie/aldrich/merck/gfs, potassium iodide, 99%, ar/acs, 250g, lobachemie/aldrich/merck/gfs, whatman no: 40 filter paper, packet of 100 circles, 110mm dia, ashless, original only, whatman , whatman no: 41 filter paper, packet of 100 circles, 110mm dia, ashless, original only, whatman , naphthalene 99.7%, ar, 500g, lobachemie/aldrich/merck/gfs, biphenyl 99% ar/acs, 100g, lobachemie/aldrich/merck/gfs, diphenylamine, 99%, ar/acs, 500g, lobachemie/aldrich/merck/gfs, potassium chloride, 99.5%, ar, 500g, lobachemie/aldrich/merck/gfs, succinic acid, 99.5%, ar,100mg, lobachemie/aldrich/merck/gfs, phenol detached crystals, 99.5% ar/acs, 500mg, lobachemie/aldrich/merck/gfs, sodium thiosulphate penta hydrate, 99.5%, ar/acs,500g, lobachemie/aldrich/merck/gfs, nitro benzene, 99%, ar, 500ml, lobachemie/aldrich/merck/gfs, acetic acid glacial, 99.7%, ar, 500ml, lobachemie/aldrich/merck/gfs, acetone, 99.5%, ar/acs, 500ml, lobachemie/aldrich/merck/gfs, aniline,99.5% ar, 500 ml, lobachemie/aldrich/merck/gfs, acetophenone, 99.5 ar, 500ml, lobachemie/aldrich/merck/gfs, benzaldehyde,99% ar , 500ml, lobachemie/aldrich/merck/gfs, acetanilide, 98.5%, ar/acs, 500g, lobachemie/aldrich/merck/gfs, benzoic acid 99.5 % ar/acs, 500 g, lobachemie/aldrich/merck/gfs, benzoyl chloride 99% ar/acs, 500 ml, lobachemie/aldrich/merck/gfs, cinnamic acid 99 % ar/acs, 250g, lobachemie/aldrich/merck/gfs, dextrose anhydrous ar/acs, 500 g, lobachemie/aldrich/merck/gfs, n,n-dimethyl aniline 99.5 % ar/acs, 500 ml, lobachemie/aldrich/merck/gfs, ethyl benzoate 99% for synthesis, 500 ml, lobachemie/aldrich/merck/gfs, ethyl acetate 99.5 % extra pure, 2.5 l, lobachemie/aldrich/merck/gfs, fehling solution no.1, 500ml, lobachemie/aldrich/merck/gfs, fehling solution no.2, 500ml, lobachemie/aldrich/merck/gfs, hexane 99% (for hplc and uv), 1l, lobachemie/aldrich/merck/gfs, hydroxylamine hydrochloride 99% ar/acs, 100g, lobachemie/aldrich/merck/gfs, hydrochloric acid, ar, 2.5l, lobachemie/aldrich/merck/gfs, urea 99.5% ar/acs, 500 g, lobachemie/aldrich/merck/gfs, sodium metal 99% ar/acs, 500 g, lobachemie/aldrich/merck/gfs, potassium bromide, ar/gr, 500g, aldrich/merck/gfs, potassium bromate, ar/gr, 500g, aldrich/merck/gfs, aniline hydrochloride, 99% extra pure, 500g, lobachemie/aldrich/merck/gfs, benzoin 99% for synthesis 250g, lobachemie/aldrich/merck/gfs, cyclohexanone 99.5% for ar, 500 ml, lobachemie/aldrich/merck/gfs, carbon tetrac

CTN :42882090

13 Dec, 2025 NA

Chennai - Tamil Nadu

Tender For supply of vanillin 100 gm pack merck 8. 18718. 0100 , 2-nitrophenol 500 gram pack loba 05000 , 4-nitrophenol 500gram pack loba - 05015 , potassium ferricyanide 100 gram pack loba - 05359 , silver nitrate 25 gram pack merck 1. 93200. 0027 , cobalt ii chloride hexahydrate 100 gram pack loba - 02893 , potassiumdichromate 500 g pkmerck emplura1-93615 0521 cas no7778 50 9 , nitro benzene 500 ml pack loba 04936 , p-nitro aniline 100 gram pack loba 04928

corporations/Associations/Others

CTN :42901159

04 Dec, 2025 9.06 Lacs

Margao - Goa

Tender For supply of oil hydraulic to is: 10522-83/reaffirmed 2004(antiwear) with aniline point 90 dgrecent min. in place o,general purpose grease for m and p application (rdso spec. no. wd-17- misc- 92) , balmer lawrie or simil

CTN :42755030

24 Nov, 2025 15.00 Lacs

Hardoi - Uttar Pradesh

Tender For providing of design installation and maintenance of educational lab - science lab; supply and installation of hardware; buyer - ammeters different range , battery eliminator , daniell cell , drawing board , friction apparatus complete b set with weight box , galvanometer , parallelogram apparatus , key one way , jockey pencil type , two-way key , laclanche cell , meter bridge , multimeter digital , multimeter manual , magnetic compass , optical bench (1 meter long , prism (indian glass) , potentiometer , plier , cutter , screwdriver , scissor , resistance box (different range 0.1 to 10 ohm) , 1 to 10 ohms , 1 to 100 ohms , 1 to 1000 ohms , 1 to 100000 ohms , dry cell 10g (chargeable) , dry cell charger , helical spring apparatus 8 , rheostat , resistance coil different 20 range 1-5 ohms) , resonance apparatus , spherometer , screw gauge , wooden scale (1-50 cm, 1-100 cm) , stopwatch , sonometer , sprit level , thermometer , tuning fork (250 hz, 480 hz and 512 hz) withpad , vernier calliper , voltmeter (different 20 range) , beakers , connecting wires , charts for display (bio visuals) , portraits (as per choice) , concave mirror , convex mirror , convex lens , concave lens , wedge knife edge (for 10 sonometer) , glass slab , pendulum box , cork rubber 1.5 inches , hanger weights 500 gm , insulated copper wire , meter tape (1-100 meter) , soldering iron , spring balance (0-250 10 , u-shaped magnet , copper calorimeter , epidiascope , newton's disc , telescope , camera , barometer tube , lactometer , stove (oil) , electric bell , proof plane , binoculars , soldering rods , p-n junction diode set up , laptop/desktop set , balance (physical) , boyle's law apparatus 2 , fortnis barometer , metallic cylinders , metal sphere , sg bottles , grave sand apparatus , young's modulus , spectrometer , hydrometer , spirit level , potentiometer , silk and cat skin pieces 2 , gold leaf electroscope , tuning fork , ammonium chloride , all pins 1.5" , copper sulphate , drawing pins , thread rolls , balance(chemical) , blow pipe (iron) , test tube brush , cork borer (iron) , cork presser (iron) , crucible tongs (iron) , charcoal slab borer(iran) , crucible(silica) , deflagrating spoon (iron) , distilation apparatus (iron) , drying cones (iron) , funnel stand or filter stand (wooden) , pestle and mortar , pinch cock(iron) , retort stand with ring and clamp , round file , sand bath , spirit lamp (barss) , stoves , test tube stand (wooden) , test tube holder (iron) , triangular stand (iron) , trough(tin) , weight boxes(wooden) , triangular clay pipes (iron wire covered with clay) , beehie sheft , beaker , china dish , conical flasks , dessicator , gas jar dises , flasks (r.b. &f.b.) , funnel , gas jar or cylinder , glazed tile , measuring flasks , pipette , retort , thistle funnel , woulfe's apparatus , kipp's apparatus , ammonium carbonate , ammonium chloride , ammonium sulfate , ammonium bromide , aluminum sulfate , iron sticks , potassium nitrite , ammonium oxalate , sodium thiosulphate , zinc sulfate , cobalt nitrate , sodium hydroxide , copper sulfate , potassium nitrate , oxalic acid , magnesium sulfate , magnesium chloride , ammonium phosphate , sodium chloride , potassium ferrocyanide (k4fe(cn)6) , ferrous sulfate , sodium bromide , ammonium ferrous sulfate , potassium dichromate , barium chloride , strontium nitrate , sodium sulfide (na25) , potassium chromate , lead acetate , sodium sulfate , potassium iodide , lead nitrate , cedric ammonium nitrate , 2.4 dnp , universal indicator , ammonia solution (nh4oh) , phenol , aniline , bromine water , acetaldehyde , acetic acid , fehling solution(a-b) , acetone , carbon disulfide , phenolphthalein , nessler's reagent , ammoniumm olybdate

Central Government/Public Sector

CTN :42467112

28 Nov, 2025 NA

Katni - Madhya Pradesh

Tender For corrigendum : supply of gum paint containing tannic acid with potassium iodide/zinc chloride along with other soothing agents atleast 15 ml

State Government

CTN :41625454

02 Dec, 2025 8.99 Lacs

Surat - Gujarat

Tender For corrigendum : supply of fine chemicals, pvc ware & glassware for chemical lab ugbps - 1-amino 2-nephal 4-sulphonic acid, 2,4-dinitrophenyl hydrasine (100gm), acetaldehyde 500ml, acetamide (500gm), acetanilide (500gm), acetic acid (glacial), acetone, acetophenone 500ml, acetyl chloride 500ml, aluminium sulphate, amino acid f rgt for silca analyser make hach 5000make :hachcat no:2353103pack:2.9lit bottle, ammonia buffer solution, ammonia solution, ammonium bi carbonate (500gm), ammonium carbonate, ammonium iodide 100gm, ammonium molybdate, ammonium oxalate, ammonium pur-sulphate, ammonium salt (500gm), ammonium sulphate, carbon tetra chloride ar, barium nitrate, barium sulphate, benzaldehyde (500ml), benzene, benzoic acid, bleaching powder (500gm), blotting paper (sheet), borax (500gm), boric acid, calcium acetate ar, calcium hydroxide (500gm), calcium sulphate, zinc chloride, chloride standard solution.cat.no.18349.volume:500ml.concentration:1000mg/l., chloroform pkg 2.5 ltrs, citric acid pkg. 500 gms, citric acid surfactant f/h1 temp for silica analyser 5000 packing :29gm make: hach, cleaning brush 774649, conductivity cell,type glass,cd 30,constant 0.1 for condymeter 306,systronics, conductivity cell type glass cd 30 constant 1.0 for condymeter 306 systronics, conical flask borosil 100ml (glass wares), copper standard solution.cat.no.12932.volume:100ml.concentration:10mg/l., copper sulphate, dropper 6 glass, dropping bottels stand wooden, dropping bottle 125ml plastic, erechrom black-t (solochrome black-t), ethyl methyl ketone (500ml)

CTN :42707983

26 Nov, 2025 NA

Sheopur - Madhya Pradesh

Tender For supply of beaker 250ml , stand , digital balance , dropping bottle , forceps , funnel , heater , hot plate , apparatus , measuring cylinder 100ml 250ml , morter and pestle , skeleton joints , slide box , cavity , all pins , burette 50ml , capillary tube , microscope lens 45x and 100x , paper , thermometer , gauge , blade for section cutting , enamel tray , scissors 4 inch and 6 inch , scalpel , staining rack , handwash , chloride , muslin cloth , brushes , matchbox , chromatography paper , cork , roll , dettol , dusters , universal ph indicator , battery eliminator , drawing board , galvanometer , multimeter digital , optical bench 1 meter long , plier , cutter , screwdriver , resistance coil different range 1 5 ohms , stopwatch , milli ammeter , electric bell , spring balance 250 gm , three way keys , reostat 500 ohm , potentiometer , sonometer set , sprit level , vernier calliper , milli voltmeter , connecting wires , glass slab , pendulum box , hanger weights 500 gm , reading lens , p n junction diode set up , insulated copper wire , meter scale 1 meter , fortnis barometer , metal sphere , youn s modulus , hydrometer , spirit level , copper sulphate , hydro chloric acid , sulphuric acid h2so4 , nitric acid hno3 , ethanol , sodium sulphate , volume tric flask 100ml , picric acid , borax , cobalt glass , aluminium metal , spatula , electric balance chemical , blow pipe iron , test tube brush , charcoal slab borer iron , pestle and mortar , pinch cock iron , spirit lamp barss , beehie sheft , gas jar dises , flasks rbfb , measuring flasks , retort , watch glass , china dish , conical flasks 250 ml , dessicator , test tube holder iron , trough tin , ammonium carbonate , ammonium sulfate , ammonium bromide , aluminum sulfate , iron sticks , potassium nitrite , ammonium oxalate , sodium thiosulphate , zinc sulfate , cobalt nitrate , sodium hydroxide , copper sulfate , potassium nitrate , oxalic acid , magnesium sulfate , ammonium phosphate , ferrous sulfate , sodium bromide , ammonium ferrous sulfate , potassium dichromate , strontium nitrate , sodium sulfide na2s , potassium chromate , lead acetate , sodium sulfate , potassium iodide , lead nitrate , cedric ammonium nitrate , 2 4 dnp , universal indicator , phenol , aniline , bromine water , acetaldehyde , acetic acid , fehling solution a b , acetone , carbon disulfide , phenolphthalein , nessler s reagent , nickel carbonate , nickel sulfate , sodium bisulphate , cobalt acetate , chloroform , aluminium sulphate , benedicts solution , smith reagent , ammonium hydroxide solution , acetocarmine powder , formaldehyde , glycerine , grease , fehling solution a , fehling solution b , glucose , lens cleaning solution , robert solution , sulphosalicyclic acid , sodium hydroxide , molisch reagent , anthrone reagent , copper sulphate , sudan iil solution , potassium hydroxide , eosin reagent , xanthydrol solution , phenol red , urease tablet or powder , sodium hypobromide , lodine , methylene blue , million s reagent , needle , nitric acid , petroleum ether , safranin solution , bile salts , soap , starch , sucrose , toothpicks , aluminium foil , urea , pipette , conical flask , digital balance , gloves , petri dish , hno3 naoh koh hn03 cuso4 h2so4 kmno4 cons , silver nitrate , tollens reagent , fehling reagent , sodium metal , potash alum , lucas reagent

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