Encyclopedia of Environmental Science and Engineering, Volume I and II

VAPOR AND GASEOUS POLLUTANT FUNDAMENTALS 1215

TABLE 2

Properties of Selected Gaseous Pollutants

Name

Formula

Molec WT

Sense

Properties

Boiling

Pt,

C

Solubility, CC per 100 GMS

Cold H

O 2

Warm H

O 2

Other

Ammonia

NH

3

17.03

Colorless Pungent



33.4

Very soluble



1000 (99

)

—

Carbon monoxide

CO

28.01

Colorless Odorless



192

3.5 (0

)

2.32 (20

)

Alcohol, Cu

Cl 2

2

Chlorine

Cl

2

70.91

Gn-yellow Pungent



34.6

310 (10

)

177 (30

)

Aq. NaOH or KOH

Fluorine

F^2

38.00

Gn-yellow



187

decomposes

—

—

Hydrochloric acid

HCl

36.47

Colorless



85

very soluble



1000 (99

)

Alcohol, Ethylether

Hydrafluoric acid

HF

20.01

Colorless

19.4

very soluble



1000 (99

)

—

Hydrogen sulfide

H

S 2

34.08

Colorless Decay odor



59.6

437 (0

)

186 (40

)

Alcohol, CS

2

Mercury

Hg

200.61

—

356.9

—

—

—

Nitric oxide

NO

30.01

Colorless



151

7.34 (0

)

0 (100

)

Alcohol, H

SO 2

4

Nitrogen dioxide

NO

2

46.01

Red-brown

21.3

decomposes

—

HNO

, H 3

SO 2

, CS 4

2

Ozone

O

3

48.00

Faint blue



112

0.494 (0

)

0 (50

)

Oil turp., oil cinn.

Sulfur dioxide

SO

2

64.07

Colorless Choking



10

8000 (9

)

1600 (50

)

H

SO 2

, alcohol, 4

acetic acid

Sulfur trioxide

SO

3

80.66

Colorless

44.6

decomposes

—

H

SO 2

4

C022_001_r03.indd 1215 11/18/2005 2:32:41 PM