| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d122a1110ba1f3e6c6f9e2057a69c559 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N31-168 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-16 |
| filingDate |
1981-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1982-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c71f46189d2abea6b5bd16ae07e4fb84 |
| publicationDate |
1982-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4354853-A |
| titleOfInvention |
Karl Fischer reagent and its use |
| abstract |
An improved method and reagent for determining the water content of a sample using a Karl Fischer type of reaction. The sample to be tested is placed in a vessel with a Karl Fischer type reagent. A known amount of a new titrant is then added to determine the water content of the sample, the new titrant including, preferably, only a halogen (such as iodine) and a solvent having high solubility for the halogen but very low solubility for water. An example of such a titrant solvent is xylene. The titrant is not affected by the presence of moisture in the atmosphere and does not lose its strength over prolonged periods of time. Because the reactions between the various constituents of the vessel solution-sample mixture and the titrant occur rapidly, the endpoint of the Karl Fischer reaction is much sharper than with the use of prior art reagents. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108169409-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3447455-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108169409-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113092663-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113092663-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4725552-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102590443-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5466606-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4802957-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4239115-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7247485-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3923883-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3447455-C2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5389545-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4619900-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0599091-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0599091-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004118287-A1 |
| priorityDate |
1981-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |