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1.08387 Millipore

Tris(hydroxymethyl)aminomethane

TRIS LAB

Synonym: 2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Trometamol

  • CAS Number 77-86-1

  • Linear Formula NH2C(CH2OH)3

  • Molecular Weight 121.14

  •  Beilstein/REAXYS Number 741883

  •  MDL number MFCD00004679

  •  EC Index Number 201-064-4

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Properties

Quality Level   100
vapor pressure   0.0267 hPa ( 20 °C)
potency   >5000 mg/kg LD50, oral (Rat)
  >5000 mg/kg LD50, skin (Rat)
pH   10.2-10.6 (20 °C, 6 g/L in H2O)
useful pH range   7 - 9
pKa (25 °C)   8.1
bp   219-220 °C/10 mmHg (lit.)
  219-220 °C/13.3 hPa
mp   167-172 °C (lit.)
solubility   678 g/L
density   1.35 g/cm3 at 23 °C
bulk density   840 kg/m3
SMILES string   NC(CO)(CO)CO
InChI   1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
InChI key   LENZDBCJOHFCAS-UHFFFAOYSA-N
storage conditions   Store at +15°C to +25°C.

Description

General description

TRIS LAB

Application

Tris(hydroxymethyl)aminomethane TRIS LAB. CAS 77-86-1, EC 201-064-4, chemical formula H₂NC(CH₂OH)₃.

Analysis Note

Assay (acidimetric, calc. on anhydrous substance)99.8 - 100.1 %Identity (IR-spectrum)conformsIn water insoluble matter≤ 0.005 %Absorbance (290 nm; 40 %; 1 cm; water)≤ 0.2Chloride (Cl)≤ 0.001 %Sulfate (SO₄)≤ 0.005 %Heavy metals (as Pb)≤ 0.0005 %Fe (Iron)≤ 0.0005 %Sulfated ash≤ 0.05 %Water (according to Karl Fischer)≤ 0.5 %

Safety & Documentation

Safety Information

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