Description
Sulphuric acid nitrogen-free is a reagent conforming to Reag. Ph. Eur., Chapter 4.1.1, with empirical formula H₂SO₄, CAS number 7664-93-9 and molar mass 98,08 g/mol. It is supplied in a 1 l pack (listed weight 1,400 kg) under pharmacopoeia reagent reference 10868061. The liquid has a density of 1,84 g/cm³ and a boiling range of 295 to 315 °C. Principal identifiers also include EG number 231-639-5 and UN number 1830. This nitrogen-free sulphuric acid is listed as a pharmacopoeial reagent for Chapter 4.1.1. Boiling range and density describe the H₂SO₄ liquid as supplied in the 1 l unit. The mineral acid H₂SO₄ is available from manufacturer Carl ROTH among chemicals in pharmacopoeia quality and the Reagents 4.1.1 group. When a European Pharmacopoeia method or reagent list calls for nitrogen-free sulphuric acid, this preparation corresponds to that named quality. Molar mass and density support conversion between mass and volume in analytical reagent preparation. The product is defined by its nitrogen-free designation, Ph. Eur. reagent status, empirical formula and the physical constants given above.
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