@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/afc60a48-48f9-46eb-a2b1-5f0adb912028> a dcat:Dataset ;
    dct:description "A process comprises subjecting 1, 1, 1, 2 - tetrafluoroethane containing organic impurities to at least two distillations. A process comprises subjecting 1, 1, 1, 2 - tetrafluoroethane containing organic impurities to at least two distillations, where the second is conducted under higher pressure than the first one; and separated at the exit from the second distillation process. At least one fraction comprises hydrofluoroalkane, free from organic impurities. Independent claims are also included for: (1) use of 1, 1, 1, 2 - tetrafluoroethane purified by process as claimed as propulsive gas for pharmaceutical aerosols; (2) a method for analysis of organic impurities level of hydro-fluoroalkane comprising gas chromatography conducted at initial temperature up to 40[deg]C (preferably up to (-20)[deg]C), and detection of impurities by mass spectrometry, using SIM (selected ion monitoring) or TOF (time of flight) mode; (3) a process for production of hydrofluoroalkane, using purification process and method of analysis as claimed as means of quality control; (4) a process for producing pharmaceutical aerosols containing at least one hydrofluoroalkane of pharmaceutical quality, using quality control method as claimed; (5) production of purified hydrofluoroalkane selected from 1, 1, 1, 2, 3, 3, 3 - heptafluoropropane, 1, 1, 1, 3, 3 - pentafluoro-propane and 1, 1, 1, 3, 3 - pentafluorobutane, using 2-stage distillation process as claimed; and (6) purified hydrofluoroalkane with molar content of each organic impurity below 10 ppm." ;
    dct:identifier <https://healthdata.gov/api/views/iiup-j558> ;
    dct:issued "2025-09-05"^^xsd:date ;
    dct:modified "2025-09-06"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Patent AT-E400540-T1: [Translated] METHOD FOR PRODUCING A PURIFIED HYDROFLUORALKANE" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "NIH/NCBI Data Team" ;
            vcard:hasEmail <mailto:info@ncbi.nlm.nih.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/afc60a48-48f9-46eb-a2b1-5f0adb912028/resource/6f3f989c-52e9-4805-9477-4e13b8c953e0> ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "chemistry",
        "innovation",
        "patent",
        "pubchem",
        "research" ;
    dcat:theme <%7BNIH%7D> .

<https://data.amerigeoss.org/dataset/afc60a48-48f9-46eb-a2b1-5f0adb912028/resource/6f3f989c-52e9-4805-9477-4e13b8c953e0> a dcat:Distribution ;
    dct:description "Access the complete Patent AT-E400540-T1: [Translated] METHOD FOR PRODUCING A PURIFIED HYDROFLUORALKANE on the official website." ;
    dct:format "HTML" ;
    dct:issued "2025-09-06T22:35:23.502575"^^xsd:dateTime ;
    dct:modified "2025-09-29T14:33:12.192165"^^xsd:dateTime ;
    dct:title "Official Data Source" ;
    dcat:accessURL <https://pubchem.ncbi.nlm.nih.gov/patent/AT-E400540-T1> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .