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Sodium acetate trihydrate, for analysis, ExpertQ®, ACS, ISO, Reag. Ph Eur

- Synonyms: Acetic acid sodium salt trihydrate
- CH3COONa·3H2O
- M = 136,08 g/mol
- CAS [6131-90-4]
- EINECS-No.: 204-823-8
- Solub. in water: (20 ºC): 613 g/l
- Melting point: 58 ºC
- Boiling point: > 400 ºC (anhydrous substance) (decomposes)
- Flash pt. > 250 ºC (anhydrous substance)
- Ignition temp.: 607 ºC
- LD 50 (oral, rat): 3530 mg/kg (anhydrous substance)
- Tariff number: 2915 29 00 90
- Applications: analytical chemistry, laboratory reagent, in the pharmaceutics industry, in food industry (E 262), in buffer solutions (for biology).

SPECIFICATIONS
assay (titr. with HClO4, referred to dried sample): 99,0 - 101,0 %
assay (titration with HClO4): 99,0 - 101,0 %
identity ( IR-spectrum): passes test
appearance of solution : clear and colourless
insoluble in water: max. 0,005 %
pH (5 %, H2O): 7,5 - 9,0
arsenic (As): max. 0,2 ppm
chlorides (Cl): max. 5 ppm
phosphates (as PO4): max. 2 ppm
sulfates (SO4): max. 0,002 %
aluminium (Al): max. 5 ppm
calcium (Ca): max. 0,001 %
calcium and magnesium (as Ca): max. 0,005 %
copper (Cu): max. 3 ppm
heavy metals (as Pb): max. 5 ppm
iron (Fe): max. 5 ppm
lead (Pb): max. 5 ppm
magnesium (Mg): max. 5 ppm
potassium (K): max. 0,005 %
zinc (Zn): max. 5 ppm
reducing substances: passes test

(as HCOOH): max. 0,005 %
loss on drying (130 ºC): 39,0 - 40,5 %