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Citric acid monohydrate, for analysis, ExpertQ®, ACS, ISO, Reag. Ph Eur

- Synonyms: 2-Hydroxy-1,2,3-propanetricarboxylic acid monohydrate, b-Hydroxytricarballylic acid monohydrater- C6H8O7·H2Or- M = 210,14 g/molr- CAS [5949-29-1]r- EINECS-No.: 201-069-1r- Solub. in water: (20 ºC): very soluble in waterr- Melting point: 135 - 152 ºCr- Boiling point: 135 - 152 ºC (decomposes)r- Ignition temp.: 345 ºCr- Vapour pressure: (20 ºC) < 0,1 hPar- LD 50 (oral, rat): 3000 mg/kgr- GHS-signal word: Warningr- GHS-H sentences: H319r- GHS-P sentences: P280 - P264 - P305+P351+P338 - P337+P313r- Tariff number: 2918 14 00 00r- Applications: analytical chemistry, laboratory reagent, in buffer solutions.rrSPECIFICATIONSrassay (acidimetric): 99,5 - 100,5 %rrdried sample): 99,5 - 100,5 %ridentity (IR-spectrum): passes testrappearance of solution : passes testrinsoluble in water: max. 0,005 %rchlorides (Cl): max. 5 ppmrphosphates (as PO4): max. 0,001 %roxalates (C2O4): passes testrsulfates (SO4): max. 0,002 %roxalic acid (C2H2O4): max. 360 ppmrsulphur compounds (as SO4): max. 0,002 %rcalcium (Ca): max. 10 ppmrcopper (Cu): max. 5 ppmriron (Fe): max. 3 ppmrlead (Pb): max. 2 ppmrmagnesium (Mg): max. 10 ppmrnickel (Ni): max. 1 ppmrreadily carbonizable substances: passes testrresidue on ignition: max. 0,02 % rwater (K.F.): 7,5 - 9,0 rsuitability for determination of Fe: passes testr