{
  "alternatives": [
    {
      "category": "structure",
      "conditions": {
        "temperature_C": 30
      },
      "id": "density/unspecified/ogi2002",
      "kind": "scalar",
      "name": "Density",
      "notes": "ogi2002 also quotes a handbook value of 4633 kg/m^3.",
      "property": "density",
      "provenance": {
        "source_id": "ogi2002",
        "status": "P",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "rho",
      "unit": {
        "display": "kg/m^3",
        "qudt": "http://qudt.org/vocab/unit/KiloGM-PER-M3",
        "ucum": "kg/m3"
      },
      "value": 4636,
      "variant": "unspecified"
    },
    {
      "category": "structure",
      "id": "density/unspecified/weis1985",
      "kind": "scalar",
      "name": "Density",
      "notes": "Used in a cell-volume calculation without a measurement reference; weis1985 p. 201 uses 4.7e3 kg/m^3 in acousto-optic figures of merit.",
      "property": "density",
      "provenance": {
        "locator": "p. 194",
        "source_id": "weis1985",
        "status": "P",
        "transcribed": "2026-10-25"
      },
      "public": true,
      "symbol": "rho",
      "unit": {
        "display": "kg/m^3",
        "qudt": "http://qudt.org/vocab/unit/KiloGM-PER-M3",
        "ucum": "kg/m3"
      },
      "value": 4628,
      "variant": "unspecified"
    }
  ],
  "meta": {
    "api_version": "v1",
    "attribution": "lithium-niobate.com data compiled by Wentao Jiang; cite the original sources listed per value.",
    "data_version": "0.1.0",
    "documentation": "https://lithium-niobate.com/api/openapi.json",
    "license": {
      "id": "CC-BY-4.0",
      "name": "Creative Commons Attribution 4.0 International",
      "url": "https://creativecommons.org/licenses/by/4.0/"
    },
    "property": "density",
    "variant": "unspecified"
  },
  "recommended": [],
  "recommended_note": "No single recommended record: sources disagree or none is primary; see alternatives and spread.",
  "spread": {
    "max": 4636,
    "min": 4628,
    "n_records": 2,
    "note": "Range over all public records regardless of conditions; compare conditions before use.",
    "unit": "kg/m3"
  }
}