Sodio acetato triidrato, Pharmpur®, Ph Eur, BP, USP

- 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 %
Identification acetates: passes test
Identification sodium: passes test
appearance of solution : clear and colourless
insoluble in water: max. 0,05 %
pH (3 %, H2O): 7,5 - 9,2
pH (5 %, H2O): 7,5 - 9,0
chlorides (Cl): max. 200 ppm
sulfates (SO4): max. 50 ppm
arsenic (As): max. 2 ppm
calcium and magnesium (as Ca): max. 50 ppm
calcium and magnesium (as Ca): passes test
iron (Fe): max. 10 ppm
potassium (K): passes test
reducing substances: passes test
loss on drying (120 °C) : 38,0 - 41,0 %
loss on drying (130 ºC): 39,0 - 40,5 %