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Tris-(hydroxymethyl)-aminomethane, secondary standard for volumetric titrations, Titrasure®

- Synonyms: 2-Amino-2-(hydroxymethyl)-1,3-propanediol, Tromethamine, THAM, TRIS bufferr- C4H11NO3r- M = 121,14 g/molr- CAS [77-86-1]r- EINECS-No.: 201-064-4r- Solub. in water: (20 ºC): 800 g/lr- Melting point: 172 - 173 ºCr- Boiling point: (13,3 hPa) 219 - 220 ºCr- LD 50 (oral, rat): 5900 mg/kgr- GHS-signal word: Warningr- GHS-H sentences: H315 - H319r- GHS-P sentences: P280 - P264 - P305+P351+P338 - P321 - P332+P313 - P337+P313r- Tariff number: 2922 19 00r- Applications: analytical chemistry, in buffer solutions, in biochemistry, laboratory reagent, in the pharmaceutics industry, emulsifier (cosmetics), for the synthesis of: tensoactives.rrSPECIFICATIONSrassay (on dried sample): 99,8 - 100,1 %rabsorbance: passes testrinsoluble in water: max. 0,005 %runcertainty : 0,05%rrheavy metals (as Pb): max. 0,0005 %riron (Fe): max. 0,0005 %rwater (K.F.): max. 2 % rrThis standard solution is traceable to Standard Reference Material from NIST. r