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Frequent Questions

Physical Form (Blocks 2B.13-2.B.19)

A company buys hydrochloric acid 37% solution, CAS 7647-01-1, in a liquid diluted form, not gaseous form. It is then diluted further to approximately 31.4%, re-packaged in 1 gallon bottles for sale to the swimming pool industry for pH control of swimming pools. The company believed that only the gaseous form of hydrochloric acid was covered. Is this dilution and re-packaging covered under the CDR regulations?
Does EPA differentiate between pellets and granules when reporting the physical form?
How does one identify physical form for a compressed gas, as a liquid or a gas/vapor?
How is the physical form of slurry or a solid/liquid suspension identified?
What is the difference between water- or solvent-wet solid and liquid?
What physical form does a submitter use for a chemical substance when the chemical substance is manufactured at elevated temperatures as a liquid but then a portion is cooled and pelletized? The chemical substance may leave the site in either form.

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