MKS Request Demonstration
Input Information
The values retrieved from and stored into Cranium are organized into objects, i.e., 'chunks' of information. The objects used are requests, entities, properties, and data. These objects are exchanged using JavaScript Object Notation (JSON) which is a text-based database format. An example request object in JSON format is shown in the window to the right.
Request Object
The outer set of braces denotes a request object. There is one and only one request object. A request has the following attributes:
- Version: a string that denotes the JSON version being used to report values. As we update our JSON format we will update the version number.
- MKSJSONID: this is unique string used to identify that the JSON request was obtained from Molecular Knowledge Systems.
- ExportDate: the date and time at which the request object was created.
- Entities: an array of entity objects.
{
"Version": "1.0",
"MKSJSONID": "92B9BCD2-D114-4998-8A68-30BA2A7E98AA",
"ExportDate": "2021-12-24 00:31",
"Entities": [
{
"Identifier": "Vinyl chloride",
"IdentifierComment": "Jun 28, 2010 at 21:57:24 - MKS001\r\nValue entered.\r\n",
"IdentifierReference": "Sigma-Aldrich Website (2010)",
"EntityType": "Chemical",
"Properties": [
{
"Name": "Formula",
"Status": "Active",
"Component": "0",
"Data": [
{
"Reference": "NIST Chemistry WebBook (2010)",
"Comment": "Jun 18, 2010 at 10:38:02 - MKS001\r\nValue entered.\r\n",
"Value": "C2H3Cl"
}
]
},
{
"Name": "Boiling Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "259.78",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 29, 2010 at 23:40:22 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueAccuracy": "0.1",
"ValueUnits": "MPa",
"Value": "5.3",
"Reference": "Marsh + Abramson + Ambrose + Morton + Nikitin + Tsonopoulos + Young (2007)",
"Comment": "Dec 10, 2011 at 20:01:03 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueAccuracy": "1",
"ValueUnits": "K",
"Value": "429",
"Reference": "Marsh + Abramson + Ambrose + Morton + Nikitin + Tsonopoulos + Young (2007)",
"Comment": "Dec 10, 2011 at 20:00:46 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Volume",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "cm3/g-mol",
"Value": "181",
"Reference": "Marsh + Abramson + Ambrose + Morton + Nikitin + Tsonopoulos + Young (2007)",
"Comment": "Dec 10, 2011 at 20:01:14 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "119.31",
"Reference": "Domalski + Hearing (1996)",
"Comment": "Aug 20, 2010 at 11:08:56 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "119.36",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 29, 2010 at 23:40:18 - MKS001\r\nValue entered.\r\n"
},
{
"ValueUnits": "C",
"Value": "-178.72",
"Reference": "McDonald + Shrader + Stull (1959)",
"Comment": "Jan 03, 2012 at 09:47:27 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Molecular Weight",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "62.499",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 29, 2010 at 23:40:10 - MKS001\r\nValue entered.\r\n"
}
]
}
]
},
{
"Identifier": "Toluene",
"IdentifierComment": "Jun 28, 2010 at 17:05:59 - MKS001\r\nValue entered.\r\n",
"IdentifierReference": "NIST Chemistry WebBook (2010)",
"EntityType": "Chemical",
"Properties": [
{
"Name": "Formula",
"Status": "Active",
"Component": "0",
"Data": [
{
"Reference": "NIST Chemistry WebBook (2010)",
"Comment": "Jun 16, 2010 at 10:53:04 - MKS001\r\nValue entered.\r\n",
"Value": "C7H8"
}
]
},
{
"Name": "Acentric Factor",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "0.263",
"Reference": "Ambrose (1980)",
"Comment": "Jul 02, 2010 at 14:32:08 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Boiling Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "383.78",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 03, 2010 at 13:46:55 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueAccuracy": "0.01",
"ValueUnits": "MPa",
"Value": "4.108",
"Reference": "Tsonopoulos + Ambrose (1995)",
"Comment": "Dec 07, 2011 at 21:20:55 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "MPa",
"Value": "4.104",
"Reference": "Ambrose (1980)",
"Comment": "Jul 02, 2010 at 14:31:44 - MKS001\r\nValue entered.\r\n"
},
{
"ValueUnits": "MPa",
"Value": "4.11",
"Reference": "VonNiederhausern + Wilson + Giles (2000)",
"Comment": "Sep 28, 2012 at 18:55:55 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueAccuracy": "0.15",
"ValueUnits": "K",
"Value": "591.75",
"Reference": "Tsonopoulos + Ambrose (1995)",
"Comment": "Dec 07, 2011 at 21:20:34 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "591.79",
"Reference": "Ambrose (1980)",
"Comment": "Jul 02, 2010 at 14:31:31 - MKS001\r\nValue entered.\r\n"
},
{
"ValueAccuracy": "1",
"ValueUnits": "K",
"Value": "591.8",
"Reference": "VonNiederhausern + Wilson + Giles (2000)",
"Comment": "Sep 28, 2012 at 18:55:35 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Volume",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "cm3/g-mol",
"Value": "316",
"Reference": "Tsonopoulos + Ambrose (1995)",
"Comment": "Dec 07, 2011 at 21:21:40 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Volume",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "cm3/g-mol",
"Value": "316",
"Reference": "Ambrose (1980)",
"Comment": "Jul 02, 2010 at 14:31:54 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueAccuracy": "0.012",
"ValueUnits": "C",
"Value": "-94.991",
"Reference": "Glasgow + Murphy + Willingham + Rossini (1946)",
"Comment": "Aug 30, 2020 at 11:02:42 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "178.18",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 03, 2010 at 13:46:50 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Molecular Weight",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "92.141",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 03, 2010 at 13:46:47 - MKS001\r\nValue entered.\r\n"
}
]
}
]
},
{
"Identifier": "n-Hexane",
"IdentifierComment": "Jun 24, 2010 at 16:08:01 - MKS001\r\nValue entered.\r\n",
"IdentifierReference": "NIST Chemistry WebBook (2010)",
"EntityType": "Chemical",
"Properties": [
{
"Name": "Formula",
"Status": "Active",
"Component": "0",
"Data": [
{
"Reference": "NIST Chemistry WebBook (2010)",
"Comment": "Jun 24, 2010 at 16:08:07 - MKS001\r\nValue entered.\r\n",
"Value": "C6H14"
}
]
},
{
"Name": "Acentric Factor",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "0.299",
"Reference": "Ambrose (1980)",
"Comment": "Jul 01, 2010 at 18:02:54 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Boiling Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "C",
"Value": "68.7",
"Reference": "Lemons + Felsing (1943)",
"Comment": "Aug 21, 2012 at 14:05:49 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Boiling Point",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "341.88",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 02, 2010 at 14:20:42 - MKS001\r\nValue entered.\r\n"
},
{
"ValueUnits": "K",
"Value": "341.72",
"Reference": "Acosta + Arce + Ageitos + Rodil + Soto (2002)",
"Comment": "Jul 29, 2013 at 15:45:11 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "MPa",
"Value": "3.012",
"Reference": "Ambrose (1980)",
"Comment": "Jul 01, 2010 at 18:02:25 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "507.5",
"Reference": "Ambrose (1980)",
"Comment": "Jul 01, 2010 at 18:02:15 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Volume",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "cm3/g-mol",
"Value": "370",
"Reference": "Ambrose (1980)",
"Comment": "Jul 01, 2010 at 18:02:41 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueAccuracy": "0.01",
"ValueUnits": "C",
"Value": "-95.32",
"Reference": "Glasgow + Murphy + Willingham + Rossini (1946)",
"Comment": "Aug 30, 2020 at 09:38:29 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "177.9",
"Reference": "Huffman + Parks + Barmore (1931)",
"Comment": "May 26, 2020 at 19:17:28 - MKS001\r\nValue entered.\r\n"
},
{
"ValueUnits": "C",
"Value": "-95.36",
"Reference": "Carruth + Kobayashi (1973)",
"Comment": "Dec 10, 2015 at 18:02:21 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Molecular Weight",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "86.177",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 02, 2010 at 14:20:37 - MKS001\r\nValue entered.\r\n"
}
]
}
]
},
{
"Identifier": "Ethyl acetate",
"IdentifierComment": "Jun 24, 2010 at 12:28:56 - MKS001\r\nValue entered.\r\n",
"IdentifierReference": "NIST Chemistry WebBook (2010)",
"EntityType": "Chemical",
"Properties": [
{
"Name": "Formula",
"Status": "Active",
"Component": "0",
"Data": [
{
"Reference": "NIST Chemistry WebBook (2010)",
"Comment": "Jun 24, 2010 at 12:29:33 - MKS001\r\nValue entered.\r\n",
"Value": "C4H8O2"
}
]
},
{
"Name": "Acentric Factor",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "0.362",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 12:29:12 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Boiling Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "C",
"Value": "77.15",
"Reference": "Mumford + Phillips (1950)",
"Comment": "Sep 05, 2012 at 13:07:20 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Boiling Point",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "350.21",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 01, 2010 at 21:22:54 - MKS001\r\nValue entered.\r\n"
},
{
"ValueUnits": "K",
"Value": "350.09",
"Reference": "Acosta + Arce + Ageitos + Rodil + Soto (2002)",
"Comment": "Jul 29, 2013 at 15:44:37 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "MPa",
"Value": "3.83",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 12:28:49 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "523.2",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 12:28:40 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Volume",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "cm3/g-mol",
"Value": "286",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 12:28:59 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "189.6",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 01, 2010 at 21:22:50 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Molecular Weight",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "88.1051",
"Reference": "NIST Chemistry WebBook (2017)",
"Comment": "Feb 21, 2017 at 21:23:39 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Molecular Weight",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "88.106",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 01, 2010 at 21:22:44 - MKS001\r\nValue entered.\r\n"
}
]
}
]
},
{
"Identifier": "Ethanol",
"IdentifierComment": "Jun 24, 2010 at 12:27:37 - MKS001\r\nValue entered.\r\n",
"IdentifierReference": "NIST Chemistry WebBook (2010)",
"EntityType": "Chemical",
"Properties": [
{
"Name": "Formula",
"Status": "Active",
"Component": "0",
"Data": [
{
"Reference": "NIST Chemistry WebBook (2010)",
"Comment": "Jun 24, 2010 at 12:27:42 - MKS001\r\nValue entered.\r\n",
"Value": "C2H6O"
}
]
},
{
"Name": "Acentric Factor",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "0.644",
"Reference": "Ambrose (1980)",
"Comment": "Jul 04, 2010 at 18:00:50 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Boiling Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "351.44",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 30, 2010 at 11:08:20 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "kPa",
"Value": "6129",
"Reference": "Wilson + Lindley + Kay + Hershey (1984)",
"Comment": "Jan 07, 2021 at 20:58:14 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "MPa",
"Value": "6.137",
"Reference": "Ambrose (1980)",
"Comment": "Jul 04, 2010 at 18:00:27 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "513.95",
"Reference": "Wilson + Lindley + Kay + Hershey (1984)",
"Comment": "Jan 07, 2021 at 20:57:42 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "513.92",
"Reference": "Ambrose (1980)",
"Comment": "Jul 04, 2010 at 18:00:17 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Volume",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "cm3/g-mol",
"Value": "167",
"Reference": "Ambrose (1980)",
"Comment": "Jul 04, 2010 at 18:00:34 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "159.05",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 30, 2010 at 11:08:17 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "159",
"Reference": "Domalski + Hearing (1996)",
"Comment": "Aug 20, 2010 at 15:34:47 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Molecular Weight",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "46.069",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 30, 2010 at 11:08:11 - MKS001\r\nValue entered.\r\n"
}
]
}
]
},
{
"Identifier": "Cyclohexanol",
"IdentifierComment": "Jun 23, 2010 at 13:08:52 - MKS001\r\nValue entered.\r\n",
"IdentifierReference": "NIST Chemistry WebBook (2010)",
"EntityType": "Chemical",
"Properties": [
{
"Name": "Formula",
"Status": "Active",
"Component": "0",
"Data": [
{
"Reference": "NIST Chemistry WebBook (2010)",
"Comment": "Jun 23, 2010 at 13:09:37 - MKS001\r\nValue entered.\r\n",
"Value": "C6H12O"
}
]
},
{
"Name": "Acentric Factor",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "0.528",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 11:01:04 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Boiling Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "434",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 02, 2010 at 14:00:03 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueAccuracy": "0.05",
"ValueUnits": "MPa",
"Value": "4.26",
"Reference": "Gude + Teja (1995)",
"Comment": "Nov 18, 2011 at 12:34:36 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueAccuracy": "0.05",
"ValueUnits": "MPa",
"Value": "4.26",
"Reference": "Ambrose + Ghiassee (1987)",
"Comment": "Jun 30, 2013 at 00:02:43 - MKS001\r\nValue entered.\r\n"
},
{
"ValueAccuracy": "100",
"ValueUnits": "kPa",
"Value": "4075",
"Reference": "Steele + Chirico + Knipmeyer + Nguyen (1997)",
"Comment": "Dec 20, 2017 at 07:41:32 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueAccuracy": "2",
"ValueUnits": "K",
"Value": "650.1",
"Reference": "Gude + Teja (1995)",
"Comment": "Nov 18, 2011 at 12:32:41 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueAccuracy": "2",
"ValueUnits": "K",
"Value": "650",
"Reference": "Ambrose + Ghiassee (1987)",
"Comment": "Jun 30, 2013 at 00:02:04 - MKS001\r\nValue entered.\r\n"
},
{
"ValueAccuracy": "1",
"ValueUnits": "K",
"Value": "648",
"Reference": "Steele + Chirico + Knipmeyer + Nguyen (1997)",
"Comment": "Dec 20, 2017 at 07:37:38 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "296.6",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 02, 2010 at 13:59:59 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Molecular Weight",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "100.161",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jul 02, 2010 at 13:59:55 - MKS001\r\nValue entered.\r\n"
}
]
}
]
},
{
"Identifier": "Acetic acid",
"IdentifierComment": "Jun 20, 2010 at 19:09:35 - MKS001\r\nValue entered.\r\n",
"IdentifierReference": "NIST Chemistry WebBook (2010)",
"EntityType": "Chemical",
"Properties": [
{
"Name": "Formula",
"Status": "Active",
"Component": "0",
"Data": [
{
"Reference": "NIST Chemistry WebBook (2010)",
"Comment": "Jun 20, 2010 at 19:09:45 - MKS001\r\nValue entered.\r\n",
"Value": "C2H4O2"
}
]
},
{
"Name": "Acentric Factor",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "0.447",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 12:16:20 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Boiling Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "391.05",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 30, 2010 at 00:02:23 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "MPa",
"Value": "5.786",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 12:15:46 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Pressure",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueAccuracy": "0.17",
"ValueUnits": "MPa",
"Value": "5.8",
"Reference": "Nikitin + Pavlov + Popov (2001)",
"Comment": "Apr 07, 2013 at 09:22:26 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "592.71",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 12:15:36 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Temperature",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueAccuracy": "6",
"ValueUnits": "K",
"Value": "590",
"Reference": "Nikitin + Pavlov + Popov (2001)",
"Comment": "Apr 07, 2013 at 09:14:35 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Critical Volume",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "cm3/g-mol",
"Value": "171",
"Reference": "Ambrose (1980)",
"Comment": "Jul 05, 2010 at 12:16:01 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "C",
"Value": "16.34",
"Reference": "McDonald + Shrader + Stull (1959)",
"Comment": "Jan 03, 2012 at 10:06:27 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Melting Point",
"Status": "Passive",
"Component": "0",
"Data": [
{
"ValueUnits": "K",
"Value": "289.81",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 30, 2010 at 00:02:19 - MKS001\r\nValue entered.\r\n"
}
]
},
{
"Name": "Molecular Weight",
"Status": "Active",
"Component": "0",
"Data": [
{
"ValueUnits": "- - -",
"Value": "60.053",
"Reference": "Daubert + Danner (1992)",
"Comment": "Jun 30, 2010 at 00:02:14 - MKS001\r\nValue entered.\r\n"
}
]
}
]
}
]
}
Entity Object
An Entity, e.g., a chemical or mixture, contains information on a particular chemical, mixture, reference, or other object found in Cranium. An Enity has the following attibutes:
- Identifier: the name of the entity. An entity's identifier must always be entered in an input request and will always be provide in a result request.
- IdentifierReference: a short string identifying the reference from which this entity's name was obtained.
- IdentifierComment: a string containing any information associated with this entity's identifier.
- EntityType: specifies what kind of object this entity is. Possible entity types are: Chemical; Mixture; Reference.
- Properties: an array of property objects.
Property Object
A Property, e.g., normal boiling point or liquid viscosity, contains information on the property and an array of data values. A Property has the following attibutes:
- Name: the name of the Property.
- Status: a value of either 'Active', 'Passive', 'Rejected', 'Unknown', 'Estimated', or 'New Estimate'.
- Component: come properties, e.g., the activity coefficient, are specific to a component in a mixture. The 'Component' attribute specified the zero-based index of the component in the mixture.
- DataType: the name of the class of the property's datum objects. Knowing a datum's class can inform you about the datum's attributes.
- Data: an array of datum objects. All of these objects will be of the type given by the DataType attribute.
Datum Object
The Datum is the basic value-containing object used to exchange information with Cranium. A Datum can have a variety of different attributes depending upon its containing Property object. The most common datum objects contain the following attributes.
- Value: the value of the datum may be a string, integer, or floating point number.
- ValueAccuracy: a non-negative number that represents the accuracy of the datum's value.
- ValueUnits: the units in which the datum's value and value accuracy are given.
- Temperature: the temperature at which the datum value was determined.
- TempAccuracy: a non-negative number that represents the accuracy of the datum's temperature value.
- TempUnits: the units in which the datum's temperature and temperature accuracy are given.
- Pressure: the pressure at which the datum value was determined.
- PresAccuracy: a non-negative number that represents the accuracy of the datum's pressure value.
- PresUnits: the units in which the datum's pressure and pressure accuracy are given.
- XValues: an array containing the composition of each component in a mixture entity.
- XAccuracies: an array containing the accuracy of each composition value.
- XUnits: the units in which the datum's compositions and composition accuracies are given.
Example
Select entities, properties, and status values from the following tables and then press the Generate JSON button. The selected values will be used to form an input request object that will be sent to the server application. There Cranium will fill in the request's empty values and return it back to your browser.