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320072

Sigma-Aldrich

Water

ACS reagent

Linear Formula:
H2O
CAS Number:
Molecular Weight:
18.02
Beilstein:
2050024
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent

vapor density

<1 (vs air)

vapor pressure

3 mmHg

form

liquid

impurities

MnO4- reducers, passes test
≤0.01% Silicate (as SiO2)
≤0.01 ppm silicate

refractive index

n20/D 1.34 (lit.)

pH

6.0-8.0 (25 °C)

conductivity

≤2 μmho per cm at 25 °C

bp

100 °C (lit.)

mp

0 °C (lit.)

density

1.000 g/mL at 3.98 °C (lit.)

anion traces

chloride (Cl-): ≤0.4 ppm
nitrate (NO3-): ≤0.4 ppm
phosphate (PO43-): ≤1.0 ppm
sulfate (SO42-): ≤1.0 ppm

cation traces

heavy metals (as Pb): ≤0.01 ppm

SMILES string

O

InChI

1S/H2O/h1H2

InChI key

XLYOFNOQVPJJNP-UHFFFAOYSA-N

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Related Categories

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

S Bekesova et al.
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