TRIS (HYDROXYMETHYL AMINOMETHANE) BUFFER AR

Specification
Additional information

Assay (by HClO4 titration; on dried basis) Min 99.5 %
pH (5% solution in water) 10 - 11
Melting point 169 - 171°C
Chloride (Cl) Max 0.001 %
Sulfated ash Max 0.01 %
Water (H2O) Max 0.5 %
Absorbance (A1%/1cm; 10% in water) -
at 260 nm Max 0.02
at 280 nm Max 0.02
at 300 nm Max 0.02
at 405 nm Max 0.004
at 430 nm Max 0.004
Biological buffer at 25°C pKa 8.07
Appearance White crystalline powder

CAS No.	77-86-1
Molecular Formula	NH2C(CH2OH)3
Molecular Weight	121.14
HS Code	2922.1980
Symbol	GHS07
Signal Word	Warning
Packing	500 G

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