P8203
Sigma

PIPES

SigmaUltra, ≥99% (titration)

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Synonym

1,4-Piperazinediethanesulfonic acid

Piperazine-1,4-bis(2-ethanesulfonic acid)

Piperazine-N,N′-bis(2-ethanesulfonic acid)

Molecular Formula

C₈H₁₈N₂O₆S₂

Molecular Weight

302.37

CAS Number

5625-37-6

Beilstein Registry Number

817713

MDL number

MFCD00006159

PubChem Substance ID

24898917

EG/EC Number

227-057-6

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Descriptions

Enhanced Quality Profile

The Enhanced Quality Profile (EQP) is an SAFC program characterizing a product’s quality traits in a 5-level system to meet the requirements of our manufacturing customers. This product is in the ELITE level.

Properties

grade

SigmaUltra

assay

≥99% (titration)

total impurities

Insoluble matter, passes filter test

ign. residue (900°C)

≤0.5% (as SO₄)

loss

≤0.5% loss on drying, 110°C

useful pH range

6.1 - 7.5

pKa (25 °C)

6.8

>300 °C(lit.)

solubility

1 M NaOH: 0.5 M at 20 °C, clear, colorless

anion traces

chloride (Cl^-): ≤0.2%

cation traces

Al: ≤0.005%

Ba: ≤0.0005%

Bi: ≤0.0005%

Ca: ≤0.005%

Cd: ≤0.0005%

Co: ≤0.0005%

Cr: ≤0.0005%

Cu: ≤0.0005%

Fe: ≤0.0005%

K: ≤0.005%

Li: ≤0.0005%

Mg: ≤0.0005%

Mn: ≤0.0005%

Mo: ≤0.0005%

Na: ≤0.1%

Ni: ≤0.0005%

Pb: ≤0.0005%

Sr: ≤0.0005%

Zn: ≤0.0005%

abs.

A0.5M/260, 1 M NaOH ≤0.1

A0.5M/280, 1 M NaOH ≤0.1

References

Merck

Merck 13,7561

Beilstein

Beil. 23,V,2,380

reference

FT-IR 2 (1), 1515:C / FT-IR 1 (1), 894:B / RegBook 1 (1), 1063:A / Sigma FT-IR 1 (2), 58:D / Structure Index 1, 165:D:5

Safety

Safety Statements

22-24/25

WGK Germany

Related Categories

... Biological Buffers > Buffers A to Z

... Biological Buffers > Good’s Buffers

... Biological Buffers > SigmaUltra Buffers

FT-IR Condensed Phase

FT-IR Raman

P8203 - Product Information Sheet (57kb)

MSDS

Specification Sheet

Certificate of Analysis

More Information