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 ? 99.0%
• Sodium carbonate (Na₂CO₃) ? 0.4%
• Iron (Fe) ? 0.001%
• Sodium sulfate (Na₂SO₄) ? 0.012%
• Arsenic (As) ? 0.0001%
• Sodium chloride (NaCl) ? 0.03%
• Mercury (Hg) ? 0.00005%
• Nickel (Ni) ? 0.005%
• Lead (Pb) ? 0.00005%
• Calcium (Ca) ? 0.001%
• Chromium (Cr) ? 0.0002%
• Silicon (Si) ? 0.002%

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Na₂HPO₄·2H₂O
Sodium monohydrogen phosphate dihydrate, Sodium ph
M.W: 177.99  CAS: 10028-24-7  EC: 231-448-7  TARIC: 28352200

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• Appearance ? White crystalline powder
• Assay ? 99.5%
• pH (5% solution in water) 8.8 – 9.4
• Chloride (Cl^–) ? 0.001%
• Sulfates (SO₄) ? 0.005%
• Total Nitrogen ? 0.001%
• Heavy metals (Pb) ? 0.001%
• Iron (Fe) ? 0.001%
• Potassium (K) ? 0.005%

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NaH₂PO₄·2H₂O
M.W: 156,01  CAS: 13472-35-0  TARIC: 28352200

P: P102-P202  

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• Assay ? 99%
• Appearance colourless/white powd.
• Substances insoluble in water (H2O) ? 0.005%
• Iron (Fe) ? 0.002%
• pH (5% water, 20°C) 4.1 – 4.5
• Chloride (Cl^–) ? 0.001%
• Loss on drying 22.8 – 24%
• Total Nitrogen ? 0.002%
• Sulfates (SO₄) ? 0.005%
• Heavy metals (Pb) ? 0.001%
• Calcium (Ca) ? 0.005%
• Magnesium (Mg) ? 0.001%
• Arsenic (As) ? 0.0002%

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