(~2~H_2_)Water

Basic Information

View in Editor

CAS Number

7789-20-0

Molecular Formula

D2O

Molecular Weight

20.03 g/mol

Chemical Classification

Basic Chemical Raw Materials Inorganic Chemicals Acids

Basic Physical Properties

Melting Point

3.8 °C

Boiling Point

101°C

Density

1.107 g/mL at 25 °C

Water Solubility

Miscible with water.

Refractive Index

n20/D 1.328(lit.)

SMILES

View in Editor

[2H]O[2H]

InChI

InChI=1S/H2O/h1H2/i/hD2

InChIKey

XLYOFNOQVPJJNP-ZSJDYOACSA-N

LogP

-0.8247

pKa

pK (25°) 14.955 (molarity scale); 16.653 (mole fraction scale): A. K. Covington et al., J. Phys. Chem. 70, 3820 (1966)

Topological Polar Surface Area

31.5 Å²

Hydrogen Bond Donor/Acceptor

2 / 1

Complexity

Safety Information

View Safety Information

Stability

Stable. Hygroscopic.

Sensitiveness

Moisture Sensitive

Synonyms & References

English

Deuterium oxide
Water-d2
Water
heavy water
Deuterium oxidfe
Deuteriumoxideisotopicpurity
D2O (water-d2)
Deuterated water
Deuterium Oxide BIS001E
Dideuterium oxide
Heavy water-d2
Water(sup 2)-H2
Water,heavy (D2-O)
Water-d2 99.8atom%D
Heavy water (D2O)
Deuterium oxide [USAN]
Water, heavy (D2-O)
J65BV539M3
Water, heavy
Deuterium oxide (USAN)
D2O
Deuterium oxide, 99.9 atom % D
Deuterium oxide (Water-d2, Heavy Water)
Deuterium oxide, for NMR, 99.8 atom % D
Deuterium oxide, for NMR, 100.0 atom % D
Deuterium oxide, '100%', 99.96 atom % D
Deuterium Oxide, 99.8%(High purity)

MDL Number

MFCD00044636

FAQ

What is Water (CAS: 7789-20-0)?

Water, with CAS number 7789-20-0, is a transparent and nearly colorless chemical substance that is the most abundant solvent on Earth and the most commonly used liquid solvent in chemical experiments and industrial processes. It has the chemical formula H2O.

What are the main uses of Water (CAS: 7789-20-0)?

Water (CAS: 7789-20-0) is widely used in various applications including drinking, sanitation, agriculture, industrial processes, and as a coolant in power plants. It is also essential in pharmaceuticals, food preparation, and research.

Is Water (CAS: 7789-20-0) safe?

Water (CAS: 7789-20-0) is generally considered safe for most purposes. However, it is important to note that water purity standards are critical. Tap water should be treated and filtered to remove contaminants. Industrial water should comply with the specific safety standards of the industry and local regulations.

How should Water (CAS: 7789-20-0) be stored?

Water (CAS: 7789-20-0) should be stored in a clean, food-grade container to prevent contamination. It should be kept away from sources of contamination, excessive heat, and direct sunlight. Proper storage conditions include a cool, dry place with a temperature range of 15-25°C and a humidity of less than 70%.