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Tris-(hydroxymethyl)aminomethan ≥99.9% buffer substance, for analysis and biochemical purposes

Dodavatel: VWR Chemicals
Varování

28808.294EA 7850 CZK
28808.294 28808.440
Tris-(hydroxymethyl)aminomethan ≥99.9% buffer substance, for analysis and biochemical purposes
Tris(hydroxymethyl)aminomethane (TRIS, Trometamol)
Vzorec: NH₂C(CH₂OH)₃
MW: 121,14 g/mol
Bod varu: 357 °C (1013 hPa)
Bod tání: 169…172 °C
Hustota: 1,328 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00004679
CAS číslo: 77-86-1
EINECS: 201-064-4
Merck Index: 13,09842
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Výsledky specifikačního testu

Assay (calculated on dried substance) Min. 99.9 %
Colouration (20 %; water) Max. 20 APHA
Melting point Min. 170 °C
pH (20°C; 5 %) 10.0 - 11.5
Heavy metals (as Pb) Max. 1 ppm
Insolubility in water Max. 50 ppm
Water Max. 0.2 %
Absorbance (260 nm) (1 mol/l) Max 0.05
Absorbance (280 nm) (1 mol/l) Max. 0.03
Absorbance (430 nm) (1 mol/l) Max. 0.004

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