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1.08387

Tris Base

Name: Tris Base
Brand: MM

solid, TRIS LAB

Synonym(s):

Tris Base, Tris(hydroxymethyl)aminomethane, 2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Trometamol

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About This Item

Linear Formula:

NH₂C(CH₂OH)₃

CAS Number:

77-86-1

Molecular Weight:

121.14

UNSPSC Code:

12352104

EC Index Number:

201-064-4

NACRES:

NA.05

Beilstein/REAXYS Number:

741883

MDL number:

MFCD00004679

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Properties

Product Name

Tris(hydroxymethyl)aminomethane, TRIS LAB

vapor pressure

0.0267 hPa ( 20 °C)

Quality Level

100

form

solid

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

storage temp.

15-25°C

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

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 %

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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c