{
  "name": "Sodium chloride: crystal records, ion spacings and constants",
  "desc": "Sodium chloride crystal records and the numbers computed from them: three cubic cell edges, formula units per cell, ion spacings, layer spacings and the implied density, beside the measured density, melting point, molar mass, Avogadro constant and the bond length of a lone gas-phase NaCl molecule; one quantity per row, each marked measured, computed or defined.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Ants, Cells & Atoms",
  "url": "https://antscellsandatoms.com/molecules/sodium-chloride/",
  "from": [
    "PubChem PUG-View CID 5234 record, Crystal Structures section (COD 2108652, 4300180, 4320809, 2104025) and HSDB entries, read 2026-10-24",
    "NIST CCCBDB experimental geometry page for NaCl, read 2026-10-24",
    "CODATA 2022 Avogadro constant, read 2026-10-24"
  ],
  "how": "Compiled by Ants, Cells & Atoms from the data listed",
  "data_by": [
    "Crystallography Open Database records 2108652 (Tsirelson V, Stash A 2020, Acta Cryst. B 76:769), 4300180 and 4320809 (Jürgens B, Irran E, Schneider J, Schnick W 2000, Inorg. Chem. 39:665) and 2104025 (Shiraki K, Tsuchiya T, Ono S 2003, Acta Cryst. B 59:701), CC0, as listed in PubChem CID 5234, retrieved 2026-10-24",
    "Density, melting point: Hazardous Substances Data Bank in PubChem CID 5234, citing the CRC Handbook of Chemistry and Physics, 94th ed.; molar mass and covalently bonded unit count computed by PubChem, retrieved 2026-10-24",
    "Gas-phase NaCl r_e 2.361 Å: NIST CCCBDB Release 22 (SRD 101), citing the NIST Diatomic Spectral Database, retrieved 2026-10-24",
    "Avogadro constant: CODATA 2022 recommended values, NIST, retrieved 2026-10-24",
    "Spacings, ratios and the implied density computed 2026-10-24"
  ]
}