NIET 07 2024 25 PO AND EO JDA

Laboratory Chemicals

Activated charcoal-P free: Substances soluble in ethanol, Losson drying(120°C)approx. 3.8%,

Ammonium (solution 25%): Assay (NH3) NLT 25 % , Chloride (Cl) NMT 0.00005 %, Sulfate (SO4) NMT0.0002%, Phosphate(PO4) NMT0.0002%, Substances reducing KMnO4 Conforms, Heavy metals (as Pb) NMT0.00005%m, Residue onignition (assulfate) NMT 0.002 %

Ammonium (solution 25%): Assay (NH3) NLT 25 % , Chloride (Cl) NMT 0.00005 %, Sulfate (SO4) NMT0.0002%, Phosphate(PO4) NMT0.0002%, Substances reducing KMnO4 Conforms, Heavy metals (as Pb) NMT0.00005%m, Residue onignition (assulfate) NMT 0.002 %

Ammonium Acetate: Assay (CH3COONH4) NLT 97%, pH-value (5%w/v; water) 6.7 to 7.3, Chloride (Cl) NMT 0.0005%, Sulfate (SO4) NMT 0.001%, Nitrate (NO3) NMT 0.001%, Residue onignition (assulfate) NMT 0.01 %, Insoluble matter NMT 0.005 %

Ammonium Bi-carbonate: Assay ≥ 99.0%, pH7.0 – 8.5 at 79.1g/l at 25°C, Water solubility 79.1 g/l at 20 °C - completely soluble, Vapor pressure 67.1 h Pa at 20°C, 513 h Pa at 50°C

Ammonium Chloride anhydrous:Assay (NH4Cl) 99%, pH-value (5%w/v;water) 4.8, Heavy metals (as Pb) 0.0001 %

Ammonium fluoride: Assay (NH4F) NLT 95 %, pH-value (5% w/v; water) NLT 5.7, Hex fluorosilicate (SiF6) NMT 0.2%, Sulfate(SO4) NMT 0.02%, Iron(Fe) NMT 0.002%, Lead(Pb) NMT0.002%, Non-volatile Substances NMT 0.02%.

Ammonium Iron Sulphate hexa hydrate: Assay [ (NH4)2Fe(SO4)2.6H2O] 98.5 to 101.5, Insoluble matter NMT 0.01%, Iron (Fe+++) NMT 0.01%, Zinc (Zn) NMT 0.003%, Magnesium (Mg) NMT0.002%, Test solution [10%w/v; The Solution is clear &complete

Ammonium Heptamolybdate Tetrahydrate : (NH4)6Mo7O24.4H20: Assay( as MoO3) 81 to 83, Chloride (Cl) NMT 0.002 %, Nitrate (NO3) Conforms, Sulfate (SO4) NMT 0.02%, Lead (Pb) NMT 0.001%, Magnesium (Mg) NMT 0.005%, Potassium (K) NMT 0.01%, Sodium (Na) NMT 0.01%, Insoluble matter NMT 0.005 %, Heavymetals (asPb) NMT 0.001%, Phosphate, arsenate, silicate ( asSiO2) NMT 0.001 %

Ammonium Hydroxide

Ammonium oxalate monohydrate: Titration by KMnO4 99.0 -101.0%, Sulfate (SO4) ≤ 0.002%, Chloride Content ≤ 0.002%

Antimony Potassium Tertarate (K(SbO)C4H4O6.1/2H20)

L-ascorbic Acid: Assay (C6H8O6) 99.6 %, Heavy metals (as Pb) 0.001 %, Residue on ignition (as sulfate) 0.1 %

Ascorbic Acid: Purity (Assay) > 99% , Specific rotation + 20.5° to +21.5°

Azomethine H: reagent for the determination of Boron

Barium chloride dihydrate: Assay (BaCl2.2H2O) NLT 99 %, pH-value (5% w/v; water) 5.2 to 8.2, Insoluble matter NMT 0.005 %, Heavymetals (as Pb) NMT 0.0005%, Strontium (Sr) NMT 0.1%, Oxidizing substances (as NO3) NMT 0.005 %, Loss on drying (150°C) 14 to 16

Barium Sulphate: Assay >97.5% , form - powder, application(s) - pharmaceutical (small molecule), SMILES string - [Ba++].[O-]S([O-])(=O)=O, InChI - 1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2

Boric Acid: Assay (H3BO3); Chloride (Cl) NMT ≤ 0.0003 %; Phosphate (PO₄) NMT ≤ 0.0005 %; Sulfate (SO₄) NMT ≤ 0.0005 %; Heavy metals (as Pb) NMT ≤ 0.0005 %; Pb (Lead) NMT ≤ 0.001 %

Boron standard solution (AASstd)-1000ppm: TraceabletoSRMfromNISTH₃BO₃inH₂O1000mg/lB Certipur® Metrological traceability: Directly traceable to NISTSRM3107, lot190605, Certified value as mass fraction 1001 mg/kg, Associated uncertainty, U= k·u(k=2) as mass fraction ± 6mg/kg with CRM Certificate

Bromocresol green indicator: Transitionrange:pH3.6:Yellow-greenpH5.2:Blue Specific Extinction (E 1%/1cm; lambda : NLT 230 Specific Extinction (E 1%/1cm; lambda: NLT 490 Loss on drying (105°C): NMT 3%

pH4.0 Buffer Solution: Clear, colourless solution, pH-value of solutionat 20°C: 3.98 to 4.02 With Certificate of Analysis

pH7.0 Buffer Solution: Clear, colourless solution, pH-value of solution at 20 °C : 6.98 to 7.02 With Certificate of Analysis

pH9.0 Buffer Solution: Clear, colourless solution, pH-value of solutionat 20°C: 8.98 to 9.02 With Certificate of Analysis

Calcium carbonate precipitated: Assay (Complex metrically, calculated on dried substance) 98.5-100.5%, Loss of drying (200°C ) ≤1.0%, Substance insoluble in acetic acid ≤0.2%, Substance insoluble in hydrochloric acid≤ 0.005%

Calcium chloride dihydrate: Assay(CaCl2.2H2O; Complexo metric): 99 to 105, pH-value (5%; water,25°C): 4.5 to 8.5, Heavymetals (asPb): NMT 0.0005%, Oxidisable substances (as NO3): NMT 0.003%

Calcium chloride fused: Assay (CaCl2;on dry substance): NLT 98 %, Heavy metals (as Pb): NMT 0.002%, Water absorption capacity [24hr,RH-80%]: NLT 20%, Appearance: White, hard hygroscopic lumps. (1– 2 cms)

Calcon carboxylic acid metal indicator: Absorption maximum ʎmax (Ethanol) : 569-572nm, Spec. Absorptivity A 1%/1cm (ʎmax: 0.025g/l ; ethanol; calc, on water free substance) ≥250, Water (according to Karl Fischer) ≤9

Copper standard solution (AAS std) -1000 ppm: Metrologicaltraceability:DirectlytraceabletoNISTSRM3114, lot 120618, Certified value as mass fraction 986 mg/kg, Associated uncertainty, U = k·u(k=2) as mass fraction ±5 mg/kg; With CRM Certificate

Copper sulphate penta hydrate: Assay (CuSO₄,5H2O): 98-102%, Insoluble Matter: NMT 0.005%, Iron (Fe) : NMT 0.003 %, Sodium (Na): 0.02%

Devarda’s Alloy: Total Nitrogen( N): ≤ 0.001%

Diethylene triamine penta acetic acid (DTPA): Assay(complex metric, calc. on anhydrous substance) 100%, pH-value (saturated solution): 2.4

Diphenylamine Indicator: Purity(GC):NLT98%,Meltingrange:52.5to54,Sulfatedash :NMT0.03%, Loss on drying (over silica gel): NMT 1%, Substances insoluble in ethanol: Conforms

Erichrome Black T: Identity(IR): Conforms, Clarity of solution: Conforms, Specific extinction (E 1%/ 1 cm; on dried : NLT 300, Loss on drying (105°C): NMT 1%, Suitability as a complex metric indicator: Conforms

Ethanol-Absolute (95%pure): Purity: 99%, Acidity and Alkalinity: ≤30, Density (d 20°C /20°C): 0.790 – 0.793

Ethylene diamine tetra acetic acid di-sodiumsalt (EDTA): Assay (C10H14N2Na2O8; : 99 to 101, pH of a 5% solution at 25.0°C: 4 to 6 , Insoluble matter : NMT 0.005 %, Nitrilotriacetic acid: NMT0.1, Heavymetals (asPb): NMT 0.005%, Iron(Fe) : NMT 0.01 %

Filter Paper: Grade - 42, 46cm x 57cm

Extran: Density 1.057-1.067, pH value 6-8, foam volume > 80ml

Glacial acetic acid: Assay(CH3COOH):NLT 99.7% ,Non volatile substances: NMT 0.001 %, Titratable base : NMT 0.0004 meq/g, Colour (APHA) : NMT10HU, Heavymetals (asPb) : NMT 0.00005%, Acetic anhydride: NMT 0.1%

Glacial acetic acid: Assay(CH3COOH):NLT 99.7% ,Non volatile substances: NMT 0.001 %, Titratable base : NMT 0.0004 meq/g, Colour (APHA) : NMT 10 HU, Heavymetals (asPb) : NMT 0.00005%, Acetic anhydride: NMT 0.1%

Gum Acacia

Glycerol: Purity (GC) : NLT 99.5 %, Colour (APHA) : NMT 10 HU, Heavymetals (asPb): NMT 0.0002%, Fatty acid esters (as glycerol : NMT 0.05%

Hexamethylene Tetramine: Assay (C6H12N4): 104.6 %, pH-value (10% w/v; water) : 9, Heavy metals (as Pb): 0.001 %, Loss on drying (105°C) : 1.9 %

Hydrochloric acid (Concentrated)-35: Assay (HCl) NLT: 35%, Heavymetals (as Pb): NMT 0.001%, Residue on ignition (as sulfate) NMT: 0.005 %

Hydroxylamine hydrochloride: Assay (HONH3Cl) : NLT 98 %, pH-value (5% w/v; Water) : 2.5 to 3.5, Titrable free acid : NMT 0.25 meq/g, Total sulfur (as SO4): NMT 0.005%, Residue on ignition (as sulfates) NMT 0.05 %

Iron standard solution (AAS std) - 1000 ppm: Metrological traceability: Directly traceable to NISTSRM3126a, lot140812, Certified value as mass fraction 987 mg/kg, Associated uncertainty, U = k·u (k=2) as mass fraction ± 5 mg/kg With CRM Certificate

Liquid paraffin (extra pure): Associated uncertainty, U=k·u(k=2) as mass fraction± 5mg/kg

Manganese standard sol. (AAS std) - 1000 ppm: Metrologicaltraceability:DirectlytraceabletoNISTSRM3132, lot050429, Certified value as mass fraction 986 mg/kg, Associated uncertainty, U=k·u(k=2) as mass fraction ± 5mg/kg; with CRM Certificate

Methanol: Color Test ≤ 10 APHA, Titratable Acid ≤ 0.0003 eq/Kg, Purity (GC) > 99.8%

Methyl Red Indicator: Transition range: pH 4.4: Red, pH 6.2 : Yellow Specific extinction (E 1%/1cm; lambda max1 524 nm; pH 4.4) 1577.1, Specific extinction (E 1%/1 cm; lambdamax2430nm; pH6.2) : 733.3

Monobasic monohydrate Calcium phosphate

Murexide indicator: Appearance: Dark mauve powder, Loss on drying (110°C): 0.3 %

Nitric Acid–69% (Concentrated): Assay(HNO3):68to70,Arsenic(As):NMT0.000001%, Heavymetals (as Pb): NMT 0.00002%, Residue on ignition (as sulfate): NMT 0.0005%

Ortho phosphoric acid-85%: Assay (H3PO4) 99%, Heavymetals (as Pb): 0.001%, Insoluble matter 0.001 %

p-Nitrophenol (4-Nitrophenol): Faint Yellow to Yellow to Beige, Powder or Crystals , Purity >= 99.0 %

Perchloric acid: Assay (HClO4) : 60 to 62, Colour (Apha) : NMT 10 HU, Phosphate & silicate (as SiO2) : NMT 0.0005 %, Residue on ignition (as sulfates): NMT 0.003%, Heavymetals (as Pb): NMT 0.0001%

Phosphorus standard solution (AAS std)- 1000 ppm: The expanded measurement uncertainty is ± 0.4 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 84L; With CRM certificate

Potassium chloride: Assay (KCl) NLT 99 %, pH-value (5%w/v; water): 5.5 to 8.5, Heavy metals (as Pb) NMT 0.002 %

Potassium dichromate: Assay (K2Cr2O7) : NLT 99 %, Insoluble matter : NMT 0.005 %, Loss on drying (105°C): NMT 0.05%, Iron (Fe): NMT 0.001%, Calcium(Ca): NMT 0.003%, Sulfate(SO4): NMT 0.005 %

Potassium dihydrogen orthophosphate: Assay (KH2PO4) ; NLT 99 %, pH-value (5% w/v; water) : 4.1 to 4.5, Loss on drying: NMT 0.2%, Insoluble matter: NMT 0.01 %, Heavy metals (as Pb) :NMT 0.001 %

Potassium hexacyanoferrate (II) (Potassium ferrocyanide)

Potassium hydrogen phthalate: Assay (C8H5KO4; dried basis ) : 99 %, pH-value (0.05M; water) : 4.00, Heavy metals (as Pb): 0.0004 %,

Potassium permanganate: Identity K: Conforms, MnO4: Conforms Assay (KMnO4) 99%, Sulfate(SO4) 0.01%

Potassium standard solution (AAS std) - 1000 ppm: Metrological traceability: Directly traceable to NISTSRM3141a, lot140813, Certified value as mass fraction 986mg/kg, Associated uncertainty, U= k·u(k=2) as mass fraction ± 5mg/kg. With CRM certificate

Potassium sulphate: Assay (K2SO4) : NLT 99 %, pH-value (5% w/v; water) : 5.5 to 8.5, Insoluble matter : NMT 0.01 %, Total nitrogen (N) : NMT 0.0005 %, Heavy metals (as Pb): NMT 0.0005 %

Silver sulphate: Assay (AgSO4 : argentometric); NLT 98 %, Substances insoluble : NMT 0.02 %, Nitrate (NO3): NMT 0.003 %, Iron (Fe) : NMT 0.001 %, Substances not precipitated : NMT 0.03 %

Sodium bicarbonate-P free: Assay (NaHCO3; acidimetric, calc.: 99.7 to 100.3, Phosphate (PO4): NMT 0.001%, Insoluble matter: NMT 0.015%, Heavy metals (as Pb): NMT 0.0005 %, Sulfur compounds (as SO4) : NMT 0.003 %, Ammonium (NH4) : NMT 0.0005 %

Sodium carbonate: Assay (Na2CO3; on dried sub.): NLT 99%, Total sulfur (asSO4): NMT 0.003 %, Heavy metals (as Pb) : NMT 0.0005 %, Loss on drying(285°C; 15 min.) :NMT 1 %, Insoluble matter:NMT 0.01 %, Silicate (as SiO2): NMT 0.005%

Assay (NaCl) NLT 99% 100.74%, pH-value (5%w/v; water) 5 to 96.17, Insoluble matter NMT 0.005 % - 0.002 %

Sodium fluoride: Assay (NaF) NLT 97% - 99.76%, Free acid (as HF) NMT 0.1% - 0.005 %

Sodium hexa meta phosphate: Assay (as P2O5)72.7%, Identity Na: Passes test P2O5: Passes test, Soluble Iron 0.1 %

Sodium hydroxide pellets: Assay (NaOH) NLT 99.6%, Nitrogen compounds (N) NMT 0.001% - 0.0004%, Heavymetals (as Pb) NMT 0.002% - 0.0006 %

Sodium molybdate: Assay (Na2MoO4. 2H2O) 99.5% to 100.3%, pH- value (1% w/v; water) 7 to 10.5

Sodium molybdate di-hydrate: Assay (Na2MoO4.2H2O) 100.1%, pH-value (1%w/v; water) 7.6

Standard Sulphate solution (AAS std)- 1000 ppm: Traceable to SRM from NIST Na2So4 in H2O with CRM certificate

Sodium thiosulphate pentahydrate: Assay (Na2S2O3.5H2O) NLT 98.5% - 100.32%, Test solution (10% w/v; water) The solution is clear and colourless.

ulfuric Acid-98% (Concentrated): Assay (H2SO4): 97.94 %, KmnO4 reducing substances (as SO2) NMT 0.0002 %, Residue on ignition (as sulfate) NMT 0.0005 %

Tin granules: Assay ≥ 99.5%, other foreign metals ≤ 0.1%

Tin(II) chloride dehydrate: Assay (SnCl2.2H2O): 98 to 103, Calcium (Ca): NMT 0.005%, Potassium (K) : NMT 0.005 %, Sodium (Na) : NMT 0.01 %

Triethanolamine Solution: Purity (GC) NLT: 99. %, Colour : NMT 10 HU,Sulphate (SO4) : NMT: 0.002%, Sulfate dash (600°C): NMT 0.005%, Water (KF): NMT 0.2%

Universal indicator: Clear, reddish-orangesolution

Zinc Granules (20-30 mesh): Acs reagent ≤ 99 .0% purity

Zinc standard solution (AAS std) - 1000 ppm: Metrological traceability: Directly traceable to NISTSRM3168a, lot120629, Certified value as mass fraction 984mg/kg, Associated uncertainty, U=k·u(k=2) as mass fraction ± 5mg/kg; With CRM Certificate

Zinc sulphate heptahydrate: Assay (ZnSO4.7H2O) 100%, pH-value (5%w/v;water): 4.9, Substances insoluble in water: 0.001%,Total nitrogen(N): 0.0004 %,

Glass Wares

Measuring cylinders, graduated, single metric scale, with pour out, with hexagonal base, Class A, with Certificate. (Borosilicate glass)

Measuring cylinders, graduated, single metric scale, with pour out, with hexagonal base, Class A, with Certificate. (Borosilicate glass)

Measuring cylinders, graduated, single metric scale, with pour out, with hexagonal base, Class A, with Certificate. (Borosilicate glass)

Measuring cylinders, graduated, single metric scale, with pour out, with hexagonal base, Class A, with Certificate. (Borosilicate glass)

Measuring cylinders ,graduated, single metric scale ,with pour out, with hexagonal base ,Class A, with Certificate.(Borosilicate glass)

Measuring cylinders, graduated, single metric scale, with pour out ,with hexagonal base, Class A, with Certificate. (Borosilicate glass)

Flasks, Erlenmeyer, conical, narrow mouth. (Borosilicate glass)

Flasks, Erlenmeyer, conical, narrow mouth. (Borosilicate glass)

Flasks, Erlenmeyer ,conical, narrow mouth.(Borosilicate glass)

Flasks ,Erlenmeyer, conical, narrow mouth.(Borosilicate glass)

Flasks, Volumetric ,with interchangeable solid glass stopper, accuracy as per Class A, with Certificate.(Borosilicate glass)

Flasks, Volumetric, with interchangeable solid glass stopper, accuracy as per Class A, with Certificate. (Borosilicate glass)

Flasks, Volumetric, with interchangeable solid glass stopper, accuracy as per Class A, with Certificate.(Borosilicate glass)

Flasks, Volumetric, with interchangeable solid glass stopper, accuracy as per Class A, with Certificate.(Borosilicate glass)

Flasks, Volumetric, with interchangeable solid glass stopper, accuracy as per Class A, with Certificate.(Borosilicate glass)

Beakers, griffin, low form, with spout.(Borosilicate glass)

Beakers, griffin ,low form, with spout.(Borosilicate glass)

Beakers, griffin, low form, with spout.(Borosilicate glass)

Beakers, griffin, low form, with spout.(Borosilicate glass)

Beakers, griffin, low form, with spout.(Borosilicate glass)

Burettes, boroflo, fitted with boroflo GP(general purpose),screw thread with PTFE keys, and accuracy as per ClassA of IS1997:2008 / EN ISO 385, with Certificate.(Borosilicate glass) With Certificate

Auto Burette, with Glass stopcock, Class A, with individual Calibration Certificate. Complies with IS1997/ ISO385. Supplied with Reservoir and rubber Bellow, with automatic zero facility. (Borosilicate glass)

Pipettes, Measuring (Mohr types), Class A, with works Certificate. (Borosilicate glass)

Pipettes, Measuring (Mohr types), Class A, with works Certificate. (Borosilicate glass)

Pipettes, Measuring (Mohr types), Class A, with works Certificate. (Borosilicate glass)

Pipettes, Measuring (Mohr types), Class A, with works Certificate. (Borosilicate glass)

Funnels,Plain,60°Angle,Short Stem.(Borosilicate glass)

Funnels,Plain,60°Angle,Short Stem.(Borosilicate glass)

Funnels,Plain,60°Angle,ShortStem.(Borosilicate glass)

Test Tube Graduatted Class A, accuracy, With I/C Glass Stopper, with Certificate. (Borosilicate glass)

Test tube without rim Class A, accuracy, (Borosilicate glass)

Glass rods

Glass cuvette (Quartz)

Reagent Bottle, Wide mouth, graduated with screw cap. (Borosilicate glass)

Reagent Bottle Narrow Mouth, graduated with screw cap, Amber.(Borosilicate glass)

Reagent Bottle Narrow Mouth, graduated with screw cap, Amber.(Borosilicate glass)

Plastic Wares and Other Laboratory Articles

Beaker with spout(Material-PP)

Beaker with spout(Material-PP)

Beaker with spout(Material-PP)

Volumetric Flask(Material-PP)

Volumetric Flask(Material-PP)

Measuring Cylinder graduated, with pour out.(Material-PP)

Measuring Cylinder graduated, with pour out.(Material-PP)

Funnels, Plain, 60°Angle, Short Stem. (Material-PP)

Funnels,Plain,60°Angle, Short Stem.(Material-PP)

Carboy with Stop Cock (Material-PP/LDPE)

Carboy with Stop Cock. (Material-PP/LDPE)

Carboy with Stop Cock. (Material-PP/LDPE)

Wash Bottle.(Material-PP)

Narrow mouth bottles (Material-PP)

Pipette Controller Bulbs

LDPE Plastic Wash Bottles

Burette Stand with double clamp

Plastic Tray

Filter Paper -1 (Packof500 Sheets)

Filter Paper -42 (Pack of 100 Sheets)

Tissue roll

1 mm sieve

M/S LAXMI ENTERPRISE (BID ID -5730157)

T.N. ENTERPRISE (BID ID -5720920)

Das Scientific House (BID ID -5731540)

Ruby Chemicals And Instruments (BID ID -5731168)

11 MERCK/ SIGMA ALDRICH

18 MERCK/ SIGMA ALDRICH

1 Tarson

2 Tarson

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6 Tarson

7 Tarson

15 Good and hard

KRISHNA SCIENTIFIC SUPPLIERS

36 WHATMAN

40 MERCK/ SIGMA ALDRICH

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20 What man

M/S LAXMI ENTERPRISE

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14 Good and hard

18 Good and hard

19 Whatman

21 Good quality

22 Good and hard

Ruby Chemicals And Instruments

31 Borosil

4 Tarson

5 Tarson

8 Tarson

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10 Tarson

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12 Tarson

Das Scientific House

3 MERCK/ SIGMA ALDRICH

6 MERCK/ SIGMA ALDRICH

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