EPR Extra Pure Grade – Page 4 – Isometric

EPR Extra Pure Grade

Cobalt (II) chloride hexahydrate EPR
CoCl₂ · 6H₂O
M.W: 237.93 CAS: 7791-13-1 EC: 231-589-4 EC INDEX: 027-004-00-5
UN: 3077 IMDG: 9 III UN 3077 ADR: 9 III UN 3077 IATA: 9 III UN 3077 H: H302;H317;H318;H334;H341;H350i;H360F;H400;H410

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Assay 98 – 102%

Appearance purple crystals

Iron (Fe) ? 0.005%

Substances insoluble in water (H2O) ? 0.01%

Alkaline metals / earth metals ? 0.2%

Heavy metals (Cu) ? 0.01%

Nickel (Ni) ? 0.25%

Sulfates (SO₄) ? 0.01%

Zinc (Zn) ? 0.01%

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Calcium chloride dihydrate EPR
CaCl₂·2H₂O
M.W: 147.02 CAS: 10035-04-8 EC: 233-140-8 EC INDEX: 017-013-00-2
H: H319

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Appearance Colourless crystals

Assay 99 – 103%

Iron (Fe) ? 0.001%

pH (5% water, 20°C) 4.5 – 8.5

Fluorhide (F) ? 0.004%

Copper (Cu) ? 0.0025%

Aluminum (Al) ? 0.0001%

Arsenic (As) ? 0.0002%

Sulfates (SO₄) ? 0.005%

Lead (Pb) ? 0.0005%

Zinc (Zn) ? 0.0025%

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n-Butyl acetate 99% EPR
C₆H₁₂O₂
M.W: 116.16 CAS: 123-86-4 EC: 204-658-1 EC INDEX: 603-005-00-1
UN: 1123 IMDG: 3 III UN 1123 ADR: 3 III UN 1123 (D/E) IATA: 3 III UN 1123 H: H226-H336 P: P210

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Assay ? 98%

Water (H₂O) ? 0.2%

Boiling point 123 – 128ºC

Density at 20°C approx. 0.881g/ml

Refractive index (n 20°C/D) 1,394

Flash point 22ºC

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Ammonium sulfate EPR
(NH₄)₂SO₄
M.W: 132.14 CAS: 7783-20-2 EC: 231-984-1 EC INDEX: 016-060-00-6
P: P102+P202

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Assay ? 99%

Total Nitrogen ? 21%

Iron (Fe) ? 0.005%

Loss on ignition ? 0.25%

Chloride (Cl^–) ? 0.001%

Selenium (Se) ? 0.003%

Lead (Pb) ? 0.0003%

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Ammonium iron (II) sulfate hexahydrate EPR
(NH₄)₂Fe(SO₄)₂·6H₂O
Mohr’s salt
M.W: 392.14 CAS: 7783-85-9 EC: 233-151-8 TARIC: 28429080

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Appearance ? Greenish blue crystals/crystalline powder

Assay ? 98.5%

Chloride (Cl^–) ? 0.005%

Fe(III) ? 0.05%

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Ammonium chloride EPR
NH₄Cl
Sal ammoniac; Ammonium muriate
M.W: 53.49 CAS: 12125-02-9 EC: 235-186-4 EC INDEX: 017-014-00-8
H: H302-H319

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Appearance White crystals or powder

Assay (dried substance) ? 99.0%

Substances insoluble in water (H2O) ? 0.02%

pH (5% water) 4.5 – 6.0

Residue on roasting (SO₄) ? 0.05%

Phosphate (PO₄) ? 0.002%

Heavy metals (Pb) ? 0.002%

Sulfates (SO₄) ? 0.01%

Organic substances passes test

Calcium (Ca) ? 0.004%

Iron III (Fe (III)) ? 0.001%

Magnesium (Mg) ? 0.0025%

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Ammonium acetate EPR
CH₃COONH₄
M.W: 77.08 CAS: 631-61-8 EC: 211-162-9 TARIC: 29152900

P: P102+P202

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Assay ? 96.5%

Iron (Fe) ? 10.0ppm

pH (5% water) 6.7 – 7.3

Chloride (Cl^–) ? 10.0ppm

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Ammonia solution 25% EPR
NH₃
M.W: 17.03 CAS: 1336-21-6 EC: 215-647-6 EC INDEX: 007-001-01-2
UN: 2672 IMDG: 8 III UN 2672 ADR: 8 III UN 2672 (E) IATA: 8 III UN 2672

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Assay 24 – 28%

Carbonate (CO₃) ? 0.003%

Calcium (Ca) + Magnesium (Mg) (by Ca) ? 0.0004%

Iron (Fe) ? 0.0001%

Chloride (Cl^–) ? 0.0002%

Sulfur (S) ? 0.001%

Phosphate (PO₄) ? 0.0005%

Substances reducing KMnO₄ ? 0.0008%

Non-volatile matter ? 0.005%

Heavy metals (Pb) ? 0.0002%

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Aluminium potassium sulfate dodecahydrate EPR Ph.Eur.
AlK(SO₄)₂·12H₂O
Potassium aluminium sulfate, Alum potassium, Potas
M.W: 474.39 CAS: 7784-24-9 EC: 233-141-3

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Assay 99 – 100.5%

Appearance Conforms

Iron (Fe) ? 0.01%

Identification A Conforms

Appearance of solution Clear and colourness

pH (10%; water) 3 – 5

Ammonium (NH₄) ? 0.2%

Heavy metals (Pb) ? 0.002%

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Boric acid EPR
H₃BO₃
Orthoboric acid, Boracic acid
M.W: 61.84 CAS: 10043-35-3 EC: 233-139-2 EC INDEX: 005-007-00-2

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Appearance white/crystalline or Colourless powder

Assay ? 99.0%

Iron (Fe) ? 0.0001%

Substances insoluble in water (H2O) ? 0.02%

Insolubility in Ethanol (CH₃CH₂OH) Passes test

Substances non-volatile in Methanol (CH₃OH) ? 0.2%

Solubility in ethanol (CH₃CH₂OH) Passes test

Chloride (Cl^–) ? 0.002%

Phosphate (PO₄) ? 0.003%

Sulfates (SO₄) ? 0.01%

Heavy metals ? 0.002%

Arsenic (As) ? 0.0002%

Calcium (Ca) ? 0.01%

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Benzyl alcohol EPR
C₆H₅CH₂OH
M.W: 108,14 CAS: 100-51-6 EC: 202-859-9 EC INDEX: 603-057-00-5
H: H302-H332 P: P501

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Appearance Colourless clear liquid

Assay ? 99%

Density at 20°C 1.043 – 1.050g/ml

Colour (Hazen) ? 20

Refractive index 1.537 – 1.543

Free acid (Benzoic acid) ? 0.02%

Non-volatile matter ? 0.05%

Residue on roasting (SO₄) ? 0.1%

Loss on drying ? 0.2%

Peroxides number ? 5

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Barium chloride dihydrate EPR
BaCl₂·2H₂O
M.W: 244.28 CAS: 10326-27-9 EC: 233-788-1 EC INDEX: 056-004-00-8
UN: 1564 IMDG: 6.1 III UN 1564 ADR: 6.1 III UN 1564 (E) IATA: 6.1 III UN 1564 H: H301-H332

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Assay ? 99%

Substances not precipited by diluted H₂SO₄ ? 0.1%

Iron (Fe) ? 0.001%

Heavy metals (Pb) ? 0.001%

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L(+)-Ascorbic acid EPR Ph.Eur.
C₆H₈O₆
Vitamin C
M.W: 176.13 CAS: 50-81-7 EC: 200-066-2
P: P102-P202

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Assay ? 99.00%

Appearance White cryst. powder

Residue on roasting (SO₄) ? 0.1%

Loss on drying ? 0.4%

Specific optical rotation 20.5 – 21.5°

Arsenic (As) ? 0.0003%

Lead (Pb) ? 0.0002%

Mercury (Hg) ? 0.0001%

Heavy metals ? 0.001%

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iso-Amyl alcohol (3-Methyl-1-butanol) EPR
C₅H₁₂O
M.W: 88.15 CAS: 123-51-3 EC: 250-378-8 EC INDEX: 603-006-00-7
UN: 1105 IMDG: 3 III UN 1105 ADR: 3 III UN 1105 (D/E) IATA: 3 III UN 1105

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Assay ? 99%

Water (H₂O) ? 0.3%

Free acidity ? 0.01%

Furfural ? 0.003%

Sulfuric acid (H₂SO₄) test Passes test

Density at 20°C 0.81 – 0.815g/ml

Residue on evaporation ? 0.005%

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