tri-Sodium citrate dihydrate, molecular biology grade

- C6H5Na3O7·2H2Or- M = 294,10 g/molr- CAS [6132-04-3]r- EINECS-No.: 200-675-3r- Solub. in water: (25 ºC): 425 g/lr- Melting point: 150 ºC (anhydrous substance)r- Tariff number: 2918 15 00 10r- Applications: analytical chemistry, in buffer solutions, for the analysis of: aminoacids, in food industry (E-331), emulsifier, antioxidant, preservative agent.r- Appearance: BlancorrSPECIFICATIONSrassay (titration with HClO4): min. 99,5 %ridentity (IR-spectrum): passes testrr0,1 M in a 1 cm cell at 260 nm: max. 0,01 AUrr0,1 M in a 1 cm cell at 280 nm: max. 0,01 AUrheavy metals: max. 0,001 %rDNases, RNases, Proteases : non detectedr