AmericanBio:Tris Hydrochloride

Tris Hydrochloride

tris [hydroxymethyl] aminomethane hydrochloride

Specifications

CAS 1185-53-1
Grade ultra pure
Formula weight 157.6
Formula C4H11NO3•HCl
Physical description white crystalline powder
Unit Min Max
Absorbance At 260nm (1M Solution) nm 0 0.06
Absorbance At 280nm (1M Solution) nm 0 0.05
Absorbance At 400nm (1M Solution) nm 0 0.01
Appearance (White Crystalline Powder) Pass 0 0
Insoluble Matter (ACS) % 0 0.005
Iron ppm 0 5
Loss On Drying % 0 0.5
Lead (Pb) ppm 0 5
Melting Range °C 149 153
Residue On Ignition (ACS) % 0 0.1
Copper ppm 0 1
Expiration Verification (1 Yr. Minimum) Pass 0 0
pH (0.5M Solution In H2O) pH 3.5 5
Pka 8 8.4
Purity (Dried Basis) % 99 101
Solubility (1M In Water) Pass 0 0

Notes & Applications

biological buffer
pka: 8.3, effective buffer range pH 7.0 - 9.1
store at 15°C to 30°C
AB02005-05000 :: 5kg $698.59