natural unit of momentum

{
  "id": "NISTu296",
  "unitsml_id": "u:natural_unit_of_momentum",
  "name": "natural unit of momentum",
  "names": [
    {
      "value": "natural unit of momentum",
      "lang": "en"
    }
  ],
  "symbols": {
    "unicode": "𝑚ₑ𝑐",
    "ascii": "m_e*c",
    "html": "<i>m</i><sub>e</sub><i>c</i>",
    "latex": "\\ensuremath{\\mathit{m}_e\\mathit{c}}",
    "id": "m_e*c",
    "mathml": "<mrow><msub><mi mathvariant='italic'>m</mi><mi mathvariant='normal'>e</mi></msub><mi mathvariant='italic'>c</mi></mrow>"
  },
  "identifiers": [
    {
      "type": "nist",
      "id": "NISTu296"
    },
    {
      "type": "unitsml",
      "id": "u:natural_unit_of_momentum"
    }
  ],
  "references": [],
  "short": "natural_unit_of_momentum",
  "root": true,
  "composite": false,
  "quantities": [
    {
      "id": "NISTq131",
      "name": "momentum",
      "type": "derived"
    }
  ],
  "dimension": {
    "id": "NISTd61",
    "name": "momentum",
    "expression": "L·M·T-1",
    "components": [
      {
        "key": "length",
        "symbol": "L",
        "power": 1
      },
      {
        "key": "mass",
        "symbol": "M",
        "power": 1
      },
      {
        "key": "time",
        "symbol": "T",
        "power": -1
      }
    ],
    "dimensionless": false
  },
  "scale": {
    "id": "continuous_ratio",
    "name": "continuous ratio scale"
  },
  "systems": [
    {
      "id": "non-SI_not_acceptable",
      "name": "non-SI and not acceptable",
      "short": "nonsi-unacceptable",
      "acceptable": false
    }
  ],
  "root_units": null
}