RDD014

Sigma-Aldrich

BIS-TRIS propane

anhydrous, free-flowing, Redi-Dri, ≥99.0%

Synonym(s):
1,3-Bis[tris(hydroxymethyl)methylamino]propane
Linear Formula:
CH2[CH2NHC(CH2OH)3]2
CAS Number:
Molecular Weight:
282.33
Beilstein/REAXYS Number:
1786109
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

grade

anhydrous

product line

Redi-Dri

assay

≥99.0%

form

powder

quality

free-flowing

impurities

≤0.2% water (Karl Fischer)
≤0.5% tris(hydroxymethyl aminomethane (H-NMR)

pH

9.0-10.1 (20-25 °C, 1 M in water)

useful pH range

6.3 - 9.5

pKa (25 °C)

(1) 6.8, (2) 9.0

mp

164-165 °C (lit.)

solubility

H2O: 30 % (w/w), clear, colorless

cation traces

heavy metals (as Pb): ≤5 ppm

absorption

≤0.05 at 290 at 30 % (w/w)

SMILES string

OCC(CO)(CO)NCCCNC(CO)(CO)CO

InChI

1S/C11H26N2O6/c14-4-10(5-15,6-16)12-2-1-3-13-11(7-17,8-18)9-19/h12-19H,1-9H2

InChI key

HHKZCCWKTZRCCL-UHFFFAOYSA-N

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Related Categories

Packaging

1 kg in poly drum
100, 500 g in poly bottle

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Articles
Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.
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