http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-853326-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d669af06cb2abbcd6823699582a97002 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N31-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-32 |
| filingDate | 1958-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1960-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-853326-A |
| titleOfInvention | Process and apparatus for potentiometrically measuring and reducing chromate ions inaqueous solution |
| abstract | 853,326. Electric tests. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER. May 9, 1958 [May 25, 1957]. No. 14971/58. Class 37 In a process for potentiometrically measuring and reducing chromate ions in an aqueous solution in which the measurement is carried out with the aid of a glass electrode and a platinum measuring electrode, passivation of the latter is avoided by adding to the solution a reducing agent, e.g. sodium bisulphite or sulphurous acid, in an amount so controlled by the potential measurement that the solution has alternately an oxidising action and a reducing action. As described, a sample of the test solution flows through the measuring electrode in a branch pipe from a measuring and detoxicating vessel, the resulting measurement controlling a valve through a regulator to supply reducing agent to the solution at the inlet to the vessel. From the vessel the solution passes to a final reaction container where the reducing process is completed. Prior to measurement, the pH value of the sample is made less than 2 by the addition of sulphuric acid, and the sample is also heated to a temperature above 15‹C., preferably above 30 ‹C., to prevent time lag in the measurement process. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3210261-A |
| priorityDate | 1957-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.