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Q: 79-38-9: Chemical Compound or Lottery Numbers?
A: 79-38-9 is a chemical compound, specifically it is the CAS registry number for the compound potassium hydride.
Q: What is a CAS registry number?
A: A CAS registry number is a unique identifier assigned to chemical substances by the Chemical Abstracts Service (CAS), a division of the American Chemical Society. The number helps to identify and track the substance in various databases, publications, and regulatory activities.
Q: What is potassium hydride?
A: Potassium hydride is a chemical compound with the formula KH. It is a white solid that is highly reactive with water and often used as a powerful reducing agent in organic synthesis. It can also be used as a base to deprotonate weakly acidic compounds.
Q: What are some other examples of CAS registry numbers?
A: Some examples of CAS registry numbers for commonly known substances include: 50-00-0 for formaldehyde, 7732-18-5 for water, and 64-17-5 for ethanol. They can also be found on the Safety Data Sheets (SDS) of chemicals sold commercially.
Q: How can I look up a CAS registry number?
A: CAS registry numbers can be searched on CAS's website, as well as in various chemical databases such as PubChem and ChemSpider. They can be entered as a full number or as a partial number or name search.
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