Yamamoto Chemicals is a company
catalysts for hydrogen peroxide production
and that specializes in functional dyes for the
Mitsui Chemicals Group.
Yamamoto Chemicals is celebrating its
100th anniversary of progress
while preparing to take on the
challenges of a new century
Repertoire of developed15,000More than
Catalysts for hydrogenNo1quality
Ratio of R&D10% or higher
expenses to sales
Catalysts for Hydrogen Peroxide Production
Alkyl-anthraquinone compounds which have excellent hydrogen carrying capacity are widely used as a catalyst for the production of hydrogen peroxide.
As Japan's only manufacturer of alkyl-anthraquinone, Yamamoto Chemicals supplies it to countries around the world, and has secured an overwhelming market share in Amylanthraquinone (AAQ-H) in particular.
A functional dye is a dye that absorbs or emits light, or undergoes chemical or physical changes in response to external light, heat, electricity, pressure, electric field or other forces.
Yamamoto Chemicals, which began operating as a manufacturer of dyes and pigments, maintains an extensive range of organic synthesis technologies and has expanded into various fields of functional dyes.
Examples of Application
Catalysts for hydrogen peroxide production
We possess AAQ-H and EAQ as catalysts for the production of hydrogen peroxide. The greatest feature of AAQ-H in particular is its ability to improve production efficiency for hydrogen peroxide. It also features good solubility in solvents, excellent stability, and plays an important role as a catalyst for hydrogen peroxide production.
Thermal and pressure-sensitive dyes
With pressure-sensitive paper, capsules containing dye and a paper coated with a developer are layered. When pressure is applied, the capsules rupture, causing the dye and developer to come into contact with one another and produce color. With thermal paper, the dye and developer, etc. are dispersed, for example, in polyvinyl alcohol, a binding agent, and coated on the paper. When heat is applied with the configuration, the dye and developer melt and mix, producing color.
Transparent heat-sensitive dyes for medical use
An image is formed through a heat-induced color reaction between the leuco dye and a developer. High gradation is achieved by selecting multiple dyes and binder resins. Additionally, by adjusting the amount of binder and grain size of the developer, the dye can be dissolved to obtain transparency. Our dyes are used for this purpose.
Research and Development
Leveraging technologies cultivated over a long history spanning over nine decades, Yamamoto Chemicals engages in the research and development of functional dyes that benefit society. Yamamoto Chemicals is looking for people to help carry on that legacy.
For consultations or queries regarding
Yamamoto Chemicals and its products,
feel free to contact us via telephone
or the email inquiry form.