| Related Categories |
Analytical/Chromatography,
Biochemicals and Reagents,
Biological Buffers,
Pharmacopoeia,
Pharmacopoeia A-Z,
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InChI Key
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PJAHUDTUZRZBKM-UHFFFAOYSA-K
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assay
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99-100.5% (calc with ref. to anhyd. subst.)
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quality
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meets analytical specification of Ph. Eur., BP, FCC, E332
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impurities
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≤0.0005% heavy metals (as Pb)
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4-6% water (Karl Fischer)
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loss
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3-6 loss on drying, 180°C
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pH
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7-9 (20 °C, 5%)
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mp
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275 °C (dec.)(lit.)
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solubility
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glycerol: soluble 1 gm in 2.5 ml
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water: soluble 1 gm in 0.65 ml
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alcohol: insoluble
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anion traces
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chloride (Cl-): ≤30 mg/kg
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oxalate (as oxalic acid): ≤100 mg/kg
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sulfate (SO42-): ≤50 mg/kg
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cation traces
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As: ≤1 mg/kg
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Cu: ≤10 mg/kg
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Fe: ≤10 mg/kg
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Hg: ≤1 mg/kg
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Na: ≤3000 mg/kg
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Pb: ≤1 mg/kg
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Zn: ≤10 mg/kg
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suitability
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in accordance for appearance of solution
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passes test for reaction against H2SO4
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