Lewis structure of rubidium sulfide (Rb2S)
Rubidium sulfide (Rb2S) is an ionic compound. Its Lewis structure consists of one non-metal sulfur atom (S) and two metal rubidium atoms (Rb).
Jul 24，2026 Inorganic chemistry
Is calcium carbonate good or bad for you?
Calcium carbonate is an inorganic salt composed of calcium, carbon, and oxygen, and it is the primary component of natural materials such as limestone, chalk, and marble.
Jul 24，2026 API
Is C2H2Br2 polar or nonpolar?
Trans-1,2-Dibromoethylene(trans-C2H2Br2) is non-polar, while Cis-C2H2Br2 is polar. The polarity of C2H2Br2 depends on the arrangement of hydrogen and bromine atoms around the C=C double covalent bond.
Jul 24，2026 Organic Chemistry
Why Phenol Is No Longer Used as a General Antiseptic？
Phenol remains relevant only in highly controlled industrial applications and specific medical procedures where its properties are required under strict safety protocols.
Jul 24，2026 API
How to Draw the lewis structure for SiBr4
SiBr4 has a central Si atom bonded to four Br atoms. Four Si–Br single bonds with zero formal charge on every atom, giving a tetrahedral molecule with bond angles of about 109.5°.
Jul 24，2026 Inorganic chemistry
Preparation method of Isopropylmagnesium chloride
Isopropylmagnesium chloride is widely employed in the field of organic synthesis, particularly for the introduction of isopropyl units into target organic molecular structures.
Jul 24，2026 API
Magnesium Citrate: Bowel Preparation and Nutritional Supplementation from an Evidence-Based Perspective
This article systematically introduces the application plan of Magnesium Citrate in colonoscopy, bioavailability evaluation as a magnesium source, synthesis process, quality control points and safe us
Jul 24，2026 Natural Products
(+)-Dihydrocarvone: From mint aroma to key molecule in chiral synthesis
This article will give you a comprehensive understanding of (+)-Dihydrocarvone from the aspects of source, application, synthesis and detection.
Jul 24，2026 Natural Products
Triethyl phosphite: a versatile organophosphorus reagent
From the classic Arbuzov reaction to the novel Perkow reaction, from the synthesis of organophosphorus pesticides to the construction of transition metal complexes, TEP has demonstrated amazing reacti
Jul 24，2026 Chemical Reagents
2-Bromo-9,9-dimethylfluorene: a versatile synthetic building block from photochromic molecules to conjugated polymers
2BDMF is an indispensable key intermediate in the synthesis of organic optoelectronic materials and is widely used in fields such as photochromism, conjugated polymer end-capping, and OLED luminescent
Jul 24，2026 Chemical Reagents