About this item
Synonyms: Caustic soda, Caustic soda, Sodium hydrate, Lye, Soda lye
CAS Number:1310-73-2
Formula:NaOH
MDL Number:MFCD00003548
MW:40 g/mol
Boiling Pt:1390 °C (1013 hPa)
Melting Pt:323 °C
Density:2.13 g/cm³ (20 °C)
Storage Temperature:Ambient
Specification Test Results
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NF – Identification A (Sodium):Passes Test
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NF – Identification B (pH):≥ 11.0
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NF – Insoluble Substances and Organic Matter:Passes Test
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NF – Potassium (K):≤ 0.5 %
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NF – Carbonate (as Na₂CO₃):≤ 3.0 %
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NF – Total Alkali:95.0 – 100.5 %
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NF – Content of Sodium:54.0 – 59.8 %
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EP/BP – Identification A:Passes Test
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EP/BP – Identification B:Passes Test
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EP/BP – Carbonate (as Na₂CO₃):≤ 2.0 %
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EP/BP – Appearance of Solution:Passes Test
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EP/BP – Chloride (Cl):≤ 200 ppm
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EP/BP – Sulfate (SO₄):≤ 200 ppm
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EP/BP – Iron (Fe):≤ 10 ppm
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EP/BP – Assay (NaOH):97.0 – 100.5 %
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JP – Assay:95.0 – 101.0 %
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JP – Identification A:Passes Test
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JP – Identification B:Passes Test
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JP – Clarity and Color of Solution:Passes Test
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JP – Chloride (Cl):≤ 0.050 %
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JP – Potassium (K):Passes Test
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JP – Carbonate (as Na₂CO₃):≤ 2.0 %
ADR:8,II
:Management of Change (MOC) category = R
Merck Index:14,08627
EINECS:215-185-5
UN:1823
REACH:01-2119457892-27
:GHS05
