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OCR for page 28
28
Name: CHLORINE
CAS No.: 7782-50-5
Chemical Formula: C12
Description:
NAS/CWIC 011-82
Formula Weight: 71.0
A greenish-yellow gas that liquifies under modest pressure
to form an amber-colored liquid. As a gas it is corrosive
and has a pungent, noxious odor. It has a solubility in
water of 0.72 g/100 ml at 20°C and is available at a com-
mercial strength of 99.8% chlorine.
Used for disinfection, color removal, iron and manganese
removal, sulfide removal, and taste and odor control.
Purity Requirements:
The RMIC values are based on a maximum dosage of 30 mg of
chlorine/liter of water and are to be compared to impur-
ity concentrations obtained by using sample procedures
described in this monograph. If the actual dosage is
other than 30 mg/liter, the user is cautioned to consult
Table 2 for appropriate RMIC values.
Impurity
Carbon
tetrachloride
Trihalomethanes
Mercury
RMIC mg Impurity/kg
Chlorine
100
300
7
OCR for page 29
29
Bulk Sample Collection
:
Sample in accordance with Standard for Liquid Chlorine,
AWWA B301-81, American Water Works Association, Denver,
Colorado (1981).
Sample Analyses:
\
The analyses are to be performed on chlorine in accordance
with:
Annual Book of ASTM Methods, American Society for Testing
Materials, Philadelphia, Pennsylvania (1981).
Carbon tetrachloride
Mercury
Trihalomethanes
Section E806
Section E506
Section E806
All products used for disinfection that contain this
compound must be registered as prescribed by the Federal
Insecticide, Fungicide and Rodenticide Act.
Representative terms from entire chapter:
rmic values