Category: Natural Sciences

  • Aluminium bromide

    Aluminium bromide, with the chemical formula AlBr3, is a chemical compound composed of aluminium (Al) and bromine (Br). It is an ionic compound and belongs to the family of metal halides. Aluminium bromide is a highly reactive and hygroscopic substance, meaning it readily absorbs moisture from the air. It is commonly encountered as a colorless…

  • Aluminium diboride

    Aluminium diboride, with the chemical formula AlB2, is a chemical compound composed of aluminium (Al) and boron (B). It is a binary compound belonging to the borides group. Aluminium diboride is known for its exceptional hardness and high melting point, making it a valuable material in certain applications. Some of its notable properties and uses…

  • Aluminium arsenide

    Aluminium arsenide, with the chemical formula AlAs, is a binary compound composed of aluminium (Al) and arsenic (As). It belongs to the III-V group of semiconductors in the periodic table, where elements from group III (aluminium) and group V (arsenic) combine to form various semiconductor materials. Aluminium arsenide is an important semiconductor material with unique…

  • Aluminium arsenate

    Aluminium arsenate, with the chemical formula AlAsO4, is a chemical compound composed of aluminium (Al), arsenic (As), and oxygen (O). It is an inorganic compound and falls into the category of arsenates, which are compounds containing the arsenate ion (AsO4^3-). Aluminium arsenate can exist in different forms or phases depending on the specific conditions of…

  • Aluminium antimonide

    Aluminium antimonide, with the chemical formula AlSb, is a binary compound consisting of aluminium (Al) and antimony (Sb). It belongs to the group III-V compounds in the periodic table, where elements from group III (aluminium) and group V (antimony) combine to form various semiconductor materials. Aluminium antimonide is a semiconductor with interesting electronic properties. It…

  • Actinium(III) oxide

    Actinium(III) oxide, with the chemical formula Ac2O3, is a chemical compound composed of actinium and oxygen. In this compound, actinium is in the +3 oxidation state, having lost three electrons, and oxygen is in the -2 oxidation state, having gained two electrons. As with other actinium compounds, actinium(III) oxide is a rare and radioactive substance.…

  • Actinium(III) fluoride

    Actinium(III) fluoride, represented by the chemical formula AcF3, is a chemical compound containing actinium and fluorine. In this compound, actinium is in the +3 oxidation state, having lost three electrons, and fluorine is in the -1 oxidation state, having gained one electron. Actinium is a rare, radioactive element, and its isotopes have limited practical applications…

  • Actinium(III) chloride

    Actinium(III) chloride, represented by the chemical formula AcCl3, is a chemical compound containing actinium and chlorine. In this compound, actinium is in the +3 oxidation state, meaning it has lost three electrons, and chlorine is in the -1 oxidation state, having gained one electron. Actinium is a rare, radioactive element, and its isotopes are primarily…

  • Liberty Hyde Bailey

    Liberty Hyde Bailey (1858-1954) was an American horticulturist, botanist, and educator who made significant contributions to the field of horticulture and plant sciences. He was born on March 15, 1858, in South Haven, Michigan, USA. Key Contributions and Achievements: Founder of American Horticultural Education: Bailey was a pioneer in horticultural education in the United States.…

  • Karl Ernst von Baer

    Karl Ernst von Baer (1792-1876) was a renowned Estonian biologist, embryologist, and zoologist, often considered one of the founders of modern embryology. He was born on February 17, 1792, in Piibe, Livonia (now in Estonia). Key Contributions and Achievements: Embryology: Baer is best known for his pioneering work in embryology, particularly his studies on the…