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Merck

1.08382

Millipore

Tris Base

solid, ACS reagent, reag. Ph. Eur., GR for analysis buffer substance

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:
Molecular Weight:
121.14
Beilstein:
741883
MDL number:
UNSPSC Code:
12161703
EC Index Number:
201-064-4
NACRES:
NA.05

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product name

Tris(hydroxymethyl)aminomethane, GR for analysis buffer substance ACS,Reag. Ph Eur

grade

ACS reagent

Quality Level

Agency

reag. Ph. Eur.

vapor pressure

0.0267 hPa ( 20 °C)

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

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This Item
1659000Y0000109D3506
Thimerosal 97.0-101.0% (on dried substance, titration)

T5125

Thimerosal

Quality Level

200

Quality Level

-

Quality Level

-

Quality Level

-

form

powder or crystals

form

-

form

-

form

powder or crystals

assay

97.0-101.0% (on dried substance, titration)

assay

-

assay

-

assay

≥97% (perchloric acid titration)

storage temp.

room temp

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

room temp

solubility

1 g/L at 20 °C

solubility

-

solubility

-

solubility

water: 1 g/10 mL, slightly hazy

General description

Biological buffer substance
Tris is widely used as a biological buffer substance in the pH range of 7-9. For example it is used for the freezing of proteins. The grade conforms precisely with the Reag. Ph. Eur. requirements.
GR for analysis buffer substance ACS,Reag. Ph Eur

Application

Tris(hydroxymethyl)aminomethane GR for analysis buffer substance ACS,Reag. Ph Eur. CAS 77-86-1, EC 201-064-4, chemical formula H₂NC(CH₂OH)₃.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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