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

- Synonyms: 2-Hydroxy-1,2,3-propanetricarboxylic acid, b-Hydroxy tricarboxilic acid
- C6H8O7
- M = 192,13 g/mol
- CAS [77-92-9]
- EINECS-No.: 201-069-1
- Solub. in water: (20 ºC): soluble
- Melting point: ~ 153 ºC (decomposes)
- Flash pt. 93 ºC
- Ignition temp.: 345 ºC
- Vapour pressure: (20 ºC) < 0,1 hPa
- LD 50 (oral, rat): 3000 mg/kg
- GHS-signal word: Warning
- GHS-H sentences: H319 - H335
- GHS-P sentences: P261 - P280 - P305+P351+P338 - P304+P340 - P405 - P501a
- Tariff number: 2918 14 00 00
- Applications: acidifying agent, analytical chemistry, laboratory reagent, in food industry, antioxidant.

SPECIFICATIONS
assay (acidimetric): min. 99,5 %
assay (acidimetric, referred to dried sample): 99,5 - 100,5 %
identity (IR-spectrum): passes test
appearance of solution: passes test
insoluble in water: max. 0,005 %
chlorides (Cl): max. 0,001 %
oxalates (C2O4): passes test
phosphates (as PO4): max. 0,001 %
sulfates (SO4): max. 150 ppm
iron (Fe): max. 3 ppm
lead (Pb): max. 2 ppm
readily carbonizable substances: passes test
sulphur compounds (as SO4): max. 0,002 %
residue on ignition: max. 0,02 %
water (K.F.): max. 1,0 %