Invention Application
WO2017121575A1 STABILISED FORMAZIN COMPOSITION, METHOD OF PREPARATION AND DILUENT FOR FORMAZIN COMPOSITION
审中-公开
稳定的金属锌组合物，制备方法和用于金属锌组合物的稀释剂
- Patent Title: STABILISED FORMAZIN COMPOSITION, METHOD OF PREPARATION AND DILUENT FOR FORMAZIN COMPOSITION
- Patent Title (中): 稳定的金属锌组合物，制备方法和用于金属锌组合物的稀释剂
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Application No.: PCT/EP2016/081467Application Date: 2016-12-16
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Publication No.: WO2017121575A1Publication Date: 2017-07-20
- Inventor: VOSS, Melanie J.
- Applicant: TINTOMETER GMBH
- Applicant Address: Schleefstrasse 8-12 44287 Dortmund DE
- Assignee: TINTOMETER GMBH
- Current Assignee: TINTOMETER GMBH
- Current Assignee Address: Schleefstrasse 8-12 44287 Dortmund DE
- Agency: PRINZ & PARTNER MBB PATENT- UND RECHTSANWÄLTE
- Priority: EP16150720.7 20160111
- Main IPC: C08L79/04
- IPC: C08L79/04 ; G01N21/53 ; C08G12/06 ; C08G73/06 ; C08L61/22
Abstract:
A stabilised aqueous formazin composition comprises 100 parts by weight water; up to 0.03 parts by weight formazin polymer; 0.4to 5parts by weight hexamethylenetetramine;and a buffer composition, wherein the buffer composition is adjusted to maintain a pH of the formazin solution in a range between 8.4and 10. The stabilised formazin composition has a turbidity of 400 NTU or less.A diluent for preparing the stabilised formazin composition from a formazin stock composition is provided, wherein the diluent comprises hexamethylenetetramine in a concentration of between 4and 50 g/l and a buffer composition adjusted to a pH of the diluent in a range of from 8.4to 10.
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