Tris(hydroksymetylo)aminometan, drugorzędowy materiał referencyjny (wzorzec wtórny) do miareczkowania, w odniesieniu do SRM z NIST, Titrasure® – SCHARLAU
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Additional information
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PRODUCENT: SCHARLAB
Tris-(hydroxymethyl)-aminomethane,
THAM
– Synonyms: 2-Amino-2-(hydroxymethyl)-1,3-propanediol, Tromethamine, THAM, TRIS buffer
– C4H11NO3
– M = 121,14 g/mol
– CAS [77-86-1]
– EINECS-No.: 201-064-4
– Solub. in water: (20 ºC): 800 g/l
– Melting point: 172 – 173 ºC
– Boiling point: (13,3 hPa) 219 – 220 ºC
– LD 50 (oral, rat): 5900 mg/kg
– GHS-signal word: Warning
– GHS-H sentences: H315 – H319
– GHS-P sentences: P280 – P305+P351+P338 – P321 – P362 – P332+P313 – P337+P313
– Tariff number: 2922 19 85 90
– Applications: analytical chemistry, in buffer solutions, in biochemistry, laboratory reagent, in the pharmaceutics industry, emulsifier (cosmetics), for the synthesis of: tensoactives.
SPECIFICATIONS
assay (on dried sample): 99,8 – 100,1 %
absorbance: passes test
insoluble in water: max. 0,005 %
uncertainty : 0,05%
heavy metals (as Pb): max. 0,0005 %
iron (Fe): max. 0,0005 %
water (K.F.): max. 2 %
This standard solution is traceable to Standard Reference Material from NIST.
