[
  {
    "label": "BaFe12-2xCoxNixO19_doping ion concentration",
    "@graph": [
      {
        "@type": "Entity",
        "@id": "e1",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": [
              "natural iron sand",
              "iron sand",
              "magnetite compound (Fe3O4)",
              "magnetite compound",
              "Fe3O4"
            ],
            "@language": "en"
          }
        ],
        "matprov:mass": [
          {
            "@value": [
              "368.937 grams",
              "368.937 g"
            ],
            "@type": "xsd:string"
          }
        ],
        "matprov:form": [
          {
            "@value": "sand",
            "@type": "xsd:string"
          }
        ]
      },
      {
        "@type": "Activity",
        "@id": "a0",
        "label": [
          {
            "@value": [
              "separation",
              "separating"
            ],
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Usage",
        "activity": "a0",
        "entity": "e1"
      },
      {
        "@type": "Entity",
        "@id": "e10",
        "type": [
          {
            "@value": "tool",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": "permanent magnet",
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Usage",
        "activity": "a0",
        "entity": "e10"
      },
      {
        "@type": "Entity",
        "@id": "e2",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": "separated sample",
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Generation",
        "activity": "a0",
        "entity": "e2"
      },
      {
        "@type": "Entity",
        "@id": "e3",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": "BaCO3",
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Entity",
        "@id": "e4",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": [
              "HCl",
              "hydrochloric acid"
            ],
            "@language": "en"
          }
        ],
        "matprov:concentration": [
          {
            "@value": [
              "37 %",
              "12.063 M",
              "37% 12.063 M",
              "37%, 12.063 M"
            ],
            "@type": "xsd:string"
          }
        ]
      },
      {
        "@type": "Entity",
        "@id": "e5",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": [
              "NH4OH",
              "NH4OH solution"
            ],
            "@language": "en"
          }
        ],
        "matprov:concentration": [
          {
            "@value": "6.5 M",
            "@type": "xsd:string"
          }
        ]
      },
      {
        "@type": "Entity",
        "@id": "e6",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": "distilled water",
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Entity",
        "@id": "e7",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": [
              "CoCl2·6H2O",
              "Cobalt (II) Chloride Hexahydrate",
              "Cobalt (II) Chloride Hexahydrate (CoCl2.6H2O) PA"
            ],
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Entity",
        "@id": "e8",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": [
              "NiCl2·6H2O",
              "Nickel (II) Chloride Hexahydrate (NiCl2.6H2O) PA",
              "Nickel (II) Chloride Hexahydrate"
            ],
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Activity",
        "@id": "a1",
        "label": [
          {
            "@value": [
              "co-precipitation",
              "co-precipitating",
              "synthesizing"
            ],
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Usage",
        "activity": "a1",
        "entity": "e2"
      },
      {
        "@type": "Usage",
        "activity": "a1",
        "entity": "e3"
      },
      {
        "@type": "Usage",
        "activity": "a1",
        "entity": "e4"
      },
      {
        "@type": "Usage",
        "activity": "a1",
        "entity": "e5"
      },
      {
        "@type": "Usage",
        "activity": "a1",
        "entity": "e6"
      },
      {
        "@type": "Usage",
        "activity": "a1",
        "entity": "e7"
      },
      {
        "@type": "Usage",
        "activity": "a1",
        "entity": "e8"
      },
      {
        "@type": "Entity",
        "@id": "e9",
        "type": [
          {
            "@value": "material",
            "@language": "en"
          }
        ],
        "label": [
          {
            "@value": [
              "co-precipitated sample",
              "synthesized sample"
            ],
            "@language": "en"
          }
        ]
      },
      {
        "@type": "Generation",
        "activity": "a1",
        "entity": "e9"
      }
    ]
  }
]