Reagents and chemical products – Page 12 – Isometric

Reagents and chemical products

Starch AGR
(C₆H₁₀O₅)_n
Amylum, Potato starch
M.W: (162,1)n CAS: 9005-84-9 EC: 232-686-4 TARIC: 35051090

P: P102-P202

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Appearance ? White soft powder

Residue on ignition ? 0.4%

pH (2% w/v solution in water; 25ºC) 5.0 – 7.0

Solubility in water (H₂O) ? Passes test

Suitability ? Passes test for sensivity as indicator

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Sodium trisilicate, solution GLR
Na₂O · n SiO₂ · nH₂O
Sodium trisilicate solution, Water glass
CAS: 1344-09-8 EC: 215-687-4

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Appearance Colourless-grey liquid

Molar module SiO₂/Na₂O 2.4 – 2.6

Silica (SiO₂) and Sodium oxide (Na₂O) ? 39%

Density at 20°C 1.45 – 1.48g/ml

Iron Oxide (Fe₂O₃) ? 0.01%

Calcium oxide (CaO) ? 0.1%

Viscosity (20°C) ? 100cP

Substances insoluble in water, filtered glass ? 0.02%

Substances insoluble in water, sedimented glass ? 0.1%

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Sodium thiosulfate pentahydrate AGR
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 99.5 – 101%

Insoluble matter (10% in water) ? 0.005%

pH (5% solution in water) 6.0 – 8.4

Nitrogen (N) compounds ? 0.002%

Chloride (Cl^–) ? 0.02%

Heavy metal (as Pb) ? 0.001%

Sulfates and Sulfites (SO₄) ? 0.1%

Sulphide (S) ? Passes test

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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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di-Sodium tetraborate decahydrate (BORAX) AGR
Na₂B₄O_7·10H₂O
Borax, Sodium biborate decahydrate, Sodium borate
M.W: 381.37 CAS: 1303-96-4 EC: 215-540-4 TARIC: 28401990
EC INDEX: 005-011-01-1

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Appearance Colourless crystals/ white powder

Assay 99.5 – 100.5%

Iron (Fe) ? 0.0005%

Insolubility in water ? 0.005%

pH (25°C) 9.15 – 9.20

Chloride (Cl^–) ? 0.001%

Phosphate (PO₄) ? 0.001%

Sulfates (SO₄) ? 0.005%

Heavy metals (Pb) ? 0.001%

Calcium (Ca) ? 0.005%

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Sodium sulfite anhydrous AGR
Na₂SO₃
M.W: 126,04 CAS: 7757-83-7 EC: 231-821-4 TARIC: 28321000

P: P102+P202

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Appearance ? White crystalline powder

Assay ? 98%

Insolubility in water ? 0.005%

Acidity ? Passes test

Alkalinity ? 0.03meq/g

Chloride (Cl^–) ? 0.02%

Heavy metal (as Pb) ? 0.001%

Iron (Fe) ? 0.0005%

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Sodium sulfate anhydrous AGR
Na₂SO₄
M.W: 142,04 CAS: 7757-82-6 EC: 231-820-9
P: P102-P202

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Assay ? 99%

Substances insoluble in water (H2O) ? 0.01%

Iron (Fe) ? 0.0005%

pH (5% water, 20°C) 5.2 – 7.5

Chloride (Cl^–) ? 0.002%

Residue on roasting ? 0.5%

Total Nitrogen ? 0.0005%

Phosphate (PO₄) ? 0.005%

Heavy metals (Pb) ? 0.0005%

Potassium (K) ? 0.005%

Calcium (Ca) ? 0.005%

Magnesium (Mg) ? 0.001%

Arsenic (As) ? 0.0001%

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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 oxalate AGR
Na₂C₂O₄
M.W: 134,00  CAS: 62-76-0  EC: 200-550-3  TARIC: 29171100
EC INDEX: 607-007-00-3
H: H312-H302

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Assay ? 99.8%

pH (3% water) 7.5 – 8.5

Iron (Fe) ? 0.0005%

Total Nitrogen ? 0.001%

Chloride (Cl^–) ? 0.002%

Loss on drying (105 °C) ? 1%

Sulfates (SO₄) ? 0.02%

Heavy metals (Pb) ? 0.001%

Potassium (K) ? 0.005%

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Sodium nitrite AGR
NaNO₂
M.W: 69,00 CAS: 7632-00-0 EC: 231-555-9 TARIC: 28341000

UN: 1500 IMDG: 5.1 (6.1) III UN 1500 ADR: 5.1 (6.1) III UN 1500 IATA: 5.1 (6.1) III UN 1500 H: H272;H301;H319;H400

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Assay ? 98%

Substances insoluble in water (H2O) ? 0.005%

Chloride (Cl^–) ? 0.01%

Iron (Fe) ? 0.001%

Heavy metals (Pb) ? 0.0005%

Sulfates (SO₄) ? 0.015%

Potassium (K) ? 0.005%

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Sodium nitrate AGR
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%

Appearance white powder

Substances insoluble in water (H2O) ? 0.005%

Iron (Fe) ? 0.0002%

pH (5% water, 20°C) 5 – 7.5

Chloride (Cl^–) ? 0.0005%

Water (H₂O) ? 1%

Phosphate (PO₄) ? 0.0002%

Chlorate (ClO₃^–) and Perchlorate (ClO₄^–) (Cl) ? 0.003%

Sulfates (SO₄) ? 0.003%

Potassium (K) ? 0.005%

Heavy metals (Pb) ? 0.0005%

Ammonia salts (NH₄) ? 0.002%

Calcium (Ca) ? 0.002%

Magnesium (Mg) ? 0.001%

Nitrites (NO₂) ? 0.0002%

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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 molybdate dihydrate AGR ACS
Na₂MoO₄·2H₂O
M.W: 241,95 CAS: 10102-40-6 EC: 231-551-7 TARIC: 28417000

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Appearance ? White crystalline powder

Assay 99 – 102%

Substances insoluble in water (H2O) ? 0.005%

pH (5% solution) 7.0 – 10.5

Chloride (Cl^–) ? 0.001%

Nitrates (NO₃) ? 0.005%

Phosphate (PO₄) ? 0.001%

Sulfates (SO₄) ? 0.02%

Ammonium (NH₄) ? 0.01%

Copper (Cu) ? 0.002%

Iron (Fe) ? 0.001%

Lead (Pb) ? 0.001%

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Sodium metabisulfite AGR
Na₂S₂O₅
Sodium pyrosulfite, Sodium disulfite
M.W: 190.11 CAS: 7681-57-4 EC: 231-673-0 TARIC: 28321000
EC INDEX: 016-063-00-2

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Appearance ? White crystalline powder

Assay ? 97%

Substances insoluble in water (H2O) ? 0.005%

Chloride (Cl^–) ? 0.005%

Arsenic (As) ? 0.0001%

Phosphate (PO₄) ? 0.002%

Thiosulphates (S₂O₃) ? 0.05%

Heavy metals (Pb) ? 0.001%

Iron (Fe) ? 0.002%

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Sodium iodide AGR ACS
NaI
M.W: 149,89 CAS: 7681-82-5 EC: 231-679-3 TARIC: 28151100

UN: 3077 IMDG: 9 III UN 3077 ADR: 9 III UN 3077 IATA: 9 III UN 3077 H: H400;H319;H315 P: P264;P273;P280;P302+P352;P305+P351+P338;P337+P313;P391;P501

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Assay ? 99.5%

Appearance white crystalline powd.

Iron (Fe) ? 0.0005%

pH (5% water) 6 – 9

Chloride (Cl^–) and Bromide (Br^–) (by Cl) ? 0.01%

Iodates (IO₃) ? 0.0003%

Phosphate (PO₄) ? 0.001%

Loss on drying (105 °C) ? 0.5%

Sulfates (SO₄) ? 0.005%

Potassium (K) ? 0.01%

Heavy metals (Pb) ? 0.0005%

Calcium (Ca) ? 0.002%

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