Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of sensitizer diphenyl ditelluride material

A technology of diphenyl ditellurium material and sensitizer, which is applied in the direction of photosensitive materials, chemical instruments and methods, compounds containing elements of group 6/16 of the periodic table, etc., can solve the problems of general sensitization effect and achieve good Sensitization, the effect that the method is simple and easy to obtain

Inactive Publication Date: 2010-05-26
TIANJIN CHEM REAGENT RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A chemical sensitizer is a chemical that can improve the photosensitivity of a photosensitive emulsion. It is widely used, and the commonly used ones are gold ammonium thiocyanate [NH 4 Au(CNS) 2 ], sodium thiosulfate (Na 2 S 2 o 3 ), etc., but the sensitization effect is general

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of sensitizer diphenyl ditelluride material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Below in conjunction with embodiment, the present invention is further described; Following embodiment is illustrative, not limiting, can not limit protection scope of the present invention with following embodiment.

[0016] A preparation method of a sensitizer diphenyl ditellurium material, the steps of the preparation method are:

[0017] (1). Dissolve 1.23g of phenyl tellurium trioxide in 10ml of 2N NaOH. The molar ratio of phenyl tellurium trichloride to NaOH is 1:1.5. If the phenyl tellurium trichloride is completely insoluble, add another 5ml 2N NaOH until tellurium trichloride is completely dissolved; then neutralize with dilute acetic acid until a white crystalline solid is precipitated, which is the acetate of phenyl tellurium trichloride;

[0018] (2). Add 2 g of potassium metabisulfite to the acetate of phenyl tellurium trichloride, and the weight ratio of potassium metabisulfite to acetate of phenyl tellurium trichloride is 1: 1.5; after stirring at normal ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of a sensitizer diphenyl ditelluride material, which is realized in a way as follows: dissolving phenyl tellurium trioxide in NaOH, neutralizing with dilute acetic acid until white crystalline solids precipitate, adding pyro sulfites, stirring at normal temperature, standing in air, placing the reactants in a Soxhlet extractor and extracting with diethyl ether rotational flows, evaporating the extract to obtain coarse diphenyl ditelluride, recrystallizing in ethyl ether to obtain bright-orange needle crystals, and drying under reduced pressure to obtain the product diphenyl ditelluride. The diphenyl ditelluride in the invention is an organic telluride. The diphenyl ditelluride can be widely used in the field of sensitization chemistry, has favorable sensitization action on special films exposed to X-rays, alpha rays and the like, and especially can enhance the optical wedge grade by 6-9 grades during X-ray exposure.

Description

technical field [0001] The invention belongs to the field of sensitizer materials, in particular to a preparation method of a sensitizer diphenyl ditellurium material. Background technique [0002] Sensitizer materials are substances that increase the sensitivity of photosensitive emulsions, including chemical sensitizers and optical sensitizers. A chemical sensitizer is a chemical that can improve the photosensitivity of a photosensitive emulsion. It is widely used, and the commonly used ones are gold ammonium thiocyanate [NH 4 Au(CNS) 2 ], sodium thiosulfate (Na 2 S 2 o 3 ), etc., but the sensitization effect is average. [0003] With the continuous development of science and technology, the demand and technical requirements for sensitizers are getting higher and higher. Therefore, it is very necessary to invent a chemical sensitizer with good sensitization effect. Contents of the invention [0004] The object of the present invention is to provide a preparation me...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07F11/00G03C1/10
Inventor 马建国
Owner TIANJIN CHEM REAGENT RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com