AmericanBio:Tris

Tris

tris [hydroxymethyl] aminomethane
endotoxin tested

Specifications

CAS 77-86-1
Grade ACS/USP
Formula weight 121.14
Formula C4H11NO3
Physical description white powder
Unit Min Max
Assay (By Titration)(USP) % 99.8 101
Absorbance At 260nm (1M Solution) nm 0 0.06
Absorbance At 280nm (1M Solution) nm 0 0.05
Absorbance At 290nm (1M Solution) nm 0 0.2
Appearance Pass 0 0
Endotoxin (Kinetic) EU/g 0 2.5
Heavy Metals (As Pb)(ppm) ppm 0 2
Identification (USP) Pass 0 0
Insoluble Matter % 0 0.005
Iron (USP) ppm 0 5
Melting Range Or Temperature (USP) °C 168 172
Ph pH 10.5 11.5
Residue On Ignition % 0 0.1
Expiration Verification (1 Yr. Minimum) Pass 0 0

Notes & Applications

biological buffer
pka: 8.3, effective buffer range pH 7.0 - 9.1
store dry at 15°C to 30°C
AB14042-10000 :: 10kg $1,172.39