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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.
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