EPR Extra Pure Grade – Isometric

EPR Extra Pure Grade

Sodium acetate anhydrous EPR
CH₃COONa
Acetic Acid Sodium Salt
M.W: 82.03 CAS: 127-09-3 EC: 204-823-8
P: P102-P202

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Assay 99 – 101%

Formic acid ? 0.1%

Arsenic (As) ? 0.0002%

Iron (Fe) ? 0.0003%

Mercury (Hg) ? 0.00001%

Heavy metals ? 0.001%

pH (1% water) 8 – 9.5

Loss on drying ? 0.5%

Lead (Pb) ? 0.0002%

Sulfates (SO₄) ? 0.005%

Potassium (K) ? 0.05%

Calcium (Ca) + Magnesium (Mg) ? 0.005%

Chloride (Cl^–) ? 0.03%

Cadmium (Cd) ? 0.0001%

Acetic acid (CH₃COOH) ? 0.5%

Appearance white/hygrosc. powd.

Substances insoluble in water (H₂O) ? 0.05%

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Citric acid monohydrate EPR Ph.Eur.
C₆H₈O₇·H₂O
M.W: 210.14 CAS: 5949-29-1 EC: 201-069-1
H: H319

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Identification Passes test

Assay (Acidim,dried basis) 99.5 – 100.5%

Appearance of solution Passes test

Sulphated ash ? 0.05%

Oxalic acid (H₂C₂O₄) ? 0.036%

Arsenic (As) ? 0.0003%

Heavy metals (Pb) ? 0.001%

Sulfates (SO₄) ? 0.015%

Subs.darkd.by hot H2SO4 Passes test

Water (H₂O) 7.5 – 9.0%

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Chloroform (stabilized with amylene) EPR
CHCl₃
Trichloromethane, Formyl trichloride
Restriction: Export restrictions PQP – Health
M.W: 119.38 CAS: 67-66-3 EC: 200-663-8 EC INDEX: 602-006-00-4
UN: 1888 IMDG: 6.1 III UN 1888 ADR: 6.1 III UN 1888 (E) IATA: 6.1 III UN 1888

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Appearance colourless clear liquid

Assay ? 98%

Density at 20°C 1,475 – 1,481g/cm³

Stabilizer 0.0045 – 0.005%

Water (H₂O) ? 0.02%

Residue on evaporation ? 0.002%

Chloride (Cl^–) ? 0.0001%

Aldehydes ? 0.005%

Free chlorine (Cl₂) ? 0.0001%

Fosgen Passes test

Metallic impurities Passes test

Organic substances carbonisable with Sulfuric acid (H₂SO₄) Passes test

Free acids and Fosgen (HCl) ? 0.0001%

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Zinc sulfate heptahydrate EPR
ZnSO₄·7H₂O
white vitriol, zinc vitriol
M.W: 287,54 CAS: 7446-20-0 EC: 231-793-3 EC INDEX: 030-006-00-9
UN: 3077 IMDG: 9 III UN 3077 ADR: 9 III UN 3077 IATA: 9 III UN 3077

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Assay 99.0 – 100.5%

Substances insoluble in water (H₂O) ? 0.02%

Iron (Fe) ? 0.0005%

pH (5% water, 20°C) 4.4 – 5.6

Total Nitrogen ? 0.002%

Chloride (Cl^–) ? 0.002%

Arsenic (As) ? 0.0005%

Calcium (Ca) ? 0.005%

Potassium (K) ? 0.005%

Lead (Pb) ? 0.003%

Sodium (Na) ? 0.005%

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Diethylether EPR stabilized with <0.002% hydroquinone
(C₂H₅)₂O
1,1′-Oxibisethane, Diethyl Ether, Ethoxyethane, Et
Restriction: Drugs precursors Cat. 3 – AEAT
M.W: 74.12 CAS: 60-29-7 EC: 200-467-2 EC INDEX: 603-022-00-4
UN: 1155 IMDG: 3 I UN 1155 ADR: 3 I UN 1155 (D/E) IATA: 3 I UN 1155

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Assay ? 99.5%

Non-volatile matter ? 0.002%

Water (H₂O) ? 0.2%

Peroxides ? 0.0002%

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Zinc nitrate hexahydrate EPR
Zn(NO₃)₂·6H₂O
M.W: 297,47 CAS: 10196-18-6 EC: 231-943-8 TARIC: 28342980

UN: 1514 IMDG: 5.1 II UN 1514 ADR: 5.1 II UN 1514 (E) IATA: 5.1 II UN 1514

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Assay (Zn) ? 98.0%

Appearance White crystals

Substances insoluble in water (H2O) ? 0.01%

Iron (Fe) ? 0.005%

Chloride (Cl^–) ? 0.005%

Free acid (HNO₃) ? 0.04%

Calcium (Ca) ? 0.02%

Sulfates (SO₄) ? 0.01%

Potassium (K) ? 0.02%

Sodium (Na) ? 0.02%

Lead (Pb) ? 0.02%

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Zinc chloride, anhydrous EPR
ZnCl₂
M.W: 136,30 CAS: 7646-85-7 EC: 231-592-0 EC INDEX: 030-003-00-2
UN: 2331 IMDG: 8 III UN 2331 ADR: 8 III UN 2331 (E) IATA: 8 III UN 2331

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Assay ? 98%

Oxychlorides (ZnO) ? 2.4%

Iron (Fe) ? 0.002%

Sodium (Na) + Potassium (K) + Calcium (Ca) ? 1%

Copper (Cu) ? 0.002%

Lead (Pb) ? 0.002%

Cadmium (Cd) ? 0.001%

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Water EPR Ph.Eur.
H₂O
M.W: 18.02 CAS: 7732-18-5 EC: 231-791-2

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pH 5 – 6.5

Conductivity at 20 °C ? 3.5µS/cm*

Microbial contamination (TAMC) ? 100CFU/ml

Heavy metals (Pb) ? 0.00001%

Nitrates (NO₃) ? 0.00002%

Oxidizable substances Passes test

Sulfates (SO₄) Passes test

Total Organic Carbon (TOC) ? 0.00001%

Acidity or alkalinity Passes test

Chloride (Cl^–) Passes test

Ammonium (NH₄) ? 0.00002%

Calcium (Ca) + Magnesium (Mg) Passes test

Residue on evaporation ? 0.001%

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Urea EPR Ph.Eur.
CH₄N₂O
Carbamide, Carbonyldiamide
M.W: 60,06 CAS: 57-13-6 EC: 200-315-5 TARIC: 31021010

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Assay (HPLC) 98.0 – 102.0%

Individual impurities (HPLC) ? 0.1%

Total impurities (HPLC) ? 2.0%

Assay 98.5 – 101.5%

Melting range 132.0 – 135.0°C

Insolubility in Ethanol (CH₃CH₂OH) ? 0.04%

Residue on roasting (SO₄) ? 0.1%

Loss on drying (105 °C) ? 1.0%

Ammonium (NH₄) ? 0.05%

Biuret ? 0.1%

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Sulfuric acid 95-98% EPR
H₂SO₄
M.W: 98.08 CAS: 7664-93-9 EC: 231-639-5 TARIC: 28070000

UN: 1830 IMDG: 8 II UN 1830 ADR: 8 II UN 1830 (E) IATA: 8 II UN 1830 H: H314;H318

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Assay ? 95%

Substances reducing KMnO₄ ? 0.001%

Nitrates (NO₃) ? 0.002%

Iron (Fe) ? 0.0005%

Ammonium (NH₄) ? 0.001%

Chloride (Cl^–) ? 0.0005%

Residue on ignition ? 0.005%

Density at 20°C 1.832g/ml

Heavy metals (Pb) ? 0.0005%

Arsenic (As) ? 0.00001%

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Sodium thiosulfate pentahydrate EPR
Na₂S₂O₃·5H₂O
M.W: 248,21 CAS: 10102-17-7 EC: 231-867-5 TARIC: 28323000

P: P102-P202

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Appearance ? Large, colourless crystals or coarse crystalline powder

Assay 99 – 100.5%

Identity ? Passes test

Appearance of solution ? Dissolve 10.0 g in 50 ml of distilled water R, add 1 ml of 0.1 M sodium hydroxide and dilute to 100 ml with the same solvent. Clear & colourless

pH (10% solution in water) 6.0 – 8.4

Chloride (Cl^–) ? 0.05%

Sulfates and Sulfites (SO₄) ? 0.2%

Sulphide (S) ? Passes test%

Heavy metals (Pb) ? 0.001%

Calcium (Ca) ? Passes test%

Water 32.0 – 37.0%

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Sodium sulfate anhydrous EPR Reag.
Na₂SO₄
M.W: 142,04 CAS: 7757-82-6 EC: 231-820-9 TARIC: 28331100

P: P102-P202

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Appearance ? White crystalline powder

Assay 99 – 100.5%

Identity ? Passes test

Appearance of solution ? Passes test

Acidity or alkalinity ? Passes test

pH (5% solution in water) 5.2 – 8.0

Chloride (Cl^–) ? 0.02%

Heavy metals (Pb) ? 0.001%

Arsenic (As) ? 0.0003%

Calcium (Ca) ? 0.005%

Iron (Fe) ? 0.001%

Magnesium (Mg) ? 0.001%

Loss on drying (130ºC) ? 0.5%

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Sodium nitrate 99% EPR
NaNO₃
M.W: 84,99 CAS: 7631-99-4 EC: 231-554-3 TARIC: 31025000

UN: 1498 IMDG: 5.1 III UN 1498 ADR: 5.1 III UN 1498 IATA: 5.1 III UN 1498 H: H272;H319

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Assay ? 99.5%

Substances insoluble in water (H2O) ? 0.01%

Iron (Fe) ? 0.002%

Water (H₂O) ? 1.0%

Nitrites (NO₂) ? 0.0005%

Chloride (Cl^–) ? 0.005%

Chlorate (ClO₃^–) and Perchlorate (ClO₄^–) (Cl) ? 0.006%

Phosphate (PO₄) ? 0.001%

Sulfates (SO₄) ? 0.02%

Heavy metals (Pb) ? 0.001%

Calcium (Ca) ? 0.004%

Magnesium (Mg) ? 0.003%

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Sodium hydroxide pearls 1-2 mm EPR,
NaOH
Caustic Soda
M.W: 40,00 CAS: 1310-73-2 EC: 215-185-5 EC INDEX: 011-002-00-6
UN: 1823 IMDG: 8 II UN 1823 ADR: 8 II UN 1823 (E) IATA: 8 II UN 1823

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Assay ? 98%

Appearance White

Iron (Fe) ? 0.0015%

Total Nitrogen ? 0.0007%

Total Nitrogen ? 0.0007%

Chloride (Cl^–) ? 0.015%

Sodium carbonate (Na₂CO₃) ? 1%

Phosphate (PO₄) ? 0.002%

Silica (SiO₂) ? 0.008%

Aluminum (Al) ? 0.002%

Heavy metals ? 0.002%

Sulfates (SO₄) ? 0.003%

Heavy metals ? 0.002%

Calcium (Ca) ? 0.005%

Calcium (Ca) ? 0.005%

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di-Sodium hydrogen phosphate dodecahydrate EPR
Na₂HPO₄·12H₂O
M.W: 358,14 CAS: 10039-32-4 EC: 231-448-7
P: P102-P202

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Assay 98 – 102%

Appearance White crystals/powder

Iron (Fe) ? 0.002%

Substances insoluble in water (H2O) ? 0.01%

Chloride (Cl^–) ? 0.005%

Total Nitrogen ? 0.002%

pH (5% water, 20°C) 9 – 9.5

Sulfates (SO₄) ? 0.02%

Heavy metals (Pb) ? 0.002%

Arsenic (As) ? 0.0005%

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