Tris-HCl, molecular biology grade
- Synonyms: Tris(hydroxymethyl)aminomethane hydrochlorider- C4H11NO3·HClr- M = 157,60 g/molr- CAS [1185-53-1]r- EINECS-No.: 214-684-5r- Solub. in water: (20 ºC): freely solubler- Melting point: 150 ºCr- LD 50 (oral, rat): 5900 mg/kg (free substance)r- Tariff number: 2922 19 80 90r- Applications: analytical chemistry, for biology, in buffer solutions.rrSPECIFICATIONSrassay (argentometric, on dried sample): min. 99 %rrabsorbance of an aqueous solution 10 % in a 1 cm cell at 260 nm : max. 0,05 AUrabsorbance of an aqueous solution 10 % in a 1 cm cell at 280 nm : max. 0,05 AUrheavy metals (as Pb): max. 2 ppmrwater (K.F.): max. 0,5 % rDNases, RNases, Proteases : non detectedr
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