Various 3,4-dihydropyrimidinones can be prepared via Biginelli reaction in aqueous media by using quaternary ammonium salts ... in aqueous sodium hydroxide under phase transfer catalysis using ...

BASF SE BASFY recently announced that it has increased ammonium chloride production at its Ludwigshafen facility by 50% while enhancing product quality. Following the plant's successful start-up ...

Mechanical drying of mixtures of ammoniacal solution of casein and aqueous calcium hydroxide in our experience offered several practical difficulties. The operations became comparatively easy when ...

A recent article in Nature Communications presented a polymer-aqueous electrolyte for stabilizing polymer electrode redox products by modulating the solvation layers and developing a solid-electrolyte ...

Vitamin D and calcium are essential for overall health but don’t reduce the risk of falls or fractures in generally healthy older adults, according to a new draft recommendation from the US ...

A panel of independent health experts recommended Tuesday against older adults using vitamin D and calcium supplements to prevent falls and fractures, citing inadequate evidence to support their ...

Calcium is essential for bone health. Yet 16 percent of 11–18 year olds and 9 percent of 16–49 year olds consume less than the Lowest Reference Nutrient Intake (LRNI) of calcium through food ...

The most clinically important potential precipitates among these ions are dibasic and monohydrogen calcium phosphate ... ionization and nonionization and aqueous solubility, and ranges of pH ...

Most organic drugs contain one acid group, usually a carboxylic acid, -COOH, or one basic primary, secondary, or tertiary amino group, NC 1-3, [3,22,27,28,29] that determines the acid-base ...

Breast calcifications are small calcium deposits that develop in breast tissue. They are very common and are usually benign (noncancerous). In some cases, certain types of breast calcifications ...

The speciation of phosphorus (P), calcium (Ca), and potassium (K) in fire ash from five globally distributed ecosystems was characterized by using X-ray absorption spectroscopy and sequential ...