#alkali

• Alkalescent — Becoming alkaline; showing a tendency to acquire basic (alkaline) properties, or having weakly expressed or developing alkaline characteristics. In biology, the term often describes substances or organic media undergoing a phase of slight alkalinization as a result of specific chemical reactions.
• Alkali — A generic name given to the hydroxides of alkali metals (such as sodium, potassium) and alkaline earth metals, as well as ammonium hydroxide. In a traditional chemical sense, it refers to any water-soluble base capable of neutralizing acids, turning red litmus paper blue, and forming salts through combination reactions.
• Volatile alkali — An archaic and historical designation used in chemistry and old pharmacy for ammonia (gas or an aqueous solution of ammonium hydroxide). The term highlights the substance's alkaline (basic) character and its pronounced capacity to evaporate rapidly at room temperature, releasing a strong, pungent, and suffocating odor.
• Alcalia — A well-known brand of natural still mineral water, recognized in the market for its strongly alkaline character, featuring a high natural pH (typically around 9.36). It originates from a deep underground spring and is marketed within the context of a healthy lifestyle for its ability to support efficient hydration and help maintain the body's acid-base balance.
• Alkalic — Containing alkali; having basic or alkaline properties; alkaline. In geology and petrography, the term describes igneous rocks or minerals rich in alkali metals (such as sodium and potassium), characterized by a specific chemical composition that influences the structure and evolution of crustal melts.
• Alkali cellulose — An intermediate product obtained in the chemical industry by treating cellulose with a concentrated solution of sodium hydroxide (caustic soda). This compound plays an essential structural role in the manufacture of viscose, rayon, and cellophane, facilitating the subsequent chemical reactivity of fibers by altering the macromolecular molecular arrangement.
• Alkalimetric — Pertaining to alkalimetry; based on the measurement of alkalinity or the concentration of bases in a solution. The term describes the methods, instruments, or reagents utilized in quantitative titration analyses, where the volume of a standard acid of known concentration determines the purity of the analyzed alkaline substance.
• Alkalimetry — A method of quantitative volumetric analysis that consists of determining the concentration of a base or the amount of free alkaline substance in a solution by progressive titration with an acid solution of known concentration (standard acid). The process uses acid-base indicators or potentiometric methods to highlight the chemical equivalence point where neutralization is complete.
• Alkalimeter — An apparatus or laboratory instrument utilized in volumetric chemical analyses to measure the amount or concentration of free bases (alkali) in a liquid mixture. Historically, the term referred to special graduated glass vessels (early burettes), while in a modern context, it can describe automatic titration modules configured for basic determinations.
• Alkaline — Pertaining to or characteristic of bases (alkali); having basic properties, characterized by a pH value greater than 7. In chemistry, the term describes solutions that neutralize acids or elements from the first group of the periodic table (alkali metals); in geology, it defines rocks or minerals rich in sodium and potassium oxides.
• Alkalinity — The property of being alkaline; the total concentration of basic substances in a solution capable of neutralizing hydrogen ions. In hydrology and ecology, it represents the buffering capacity of water against acidification, primarily determined by the presence of carbonate, bicarbonate, and hydroxide ions.
• Alkalize — To make or become alkaline; to alter the chemical reaction of a solution, soil, or organic environment by increasing the proportion of bases and raising the pH above the neutral value of 7. In medicine and dietetics, it refers to the process of reducing acidity in the body through the consumption of specific foods or substances.
• Alkalinization — The act of alkalinizing and its result; a chemical, industrial, or physiological process through which a medium increases its pH above the neutral value of 7. Alkalinization is widely utilized in wastewater treatment, in agriculture for correcting podzolic soils, and in medical detoxification protocols.
• Alkalinized — Having undergone the process of alkalinization; a medium, solution, soil, or organic substance whose chemical reaction has been altered by adding bases, raising its pH above the neutral value of 7. In the food industry, the term describes specific products, such as cocoa powder treated to reduce bitterness and improve solubility.
• Alkalinization — An archaic and technical designation used in old chemistry treatises for the process of alkalinization; the act of increasing the pH of a solution or substance by adding bases (alkali) until the acids are neutralized and the neutral value of 7 is exceeded. This structural term has been completely replaced in modern language by the form 'alcalinizare'.
• Alkaline earth — Pertaining to or characteristic of the group of bivalent chemical elements in group 2 of the periodic table (such as beryllium, magnesium, calcium, strontium, barium, and radium). The name originates from the fact that the oxides of these metals exhibit pronounced alkaline properties and were historically called 'earths' due to their insolubility and high resistance to elevated temperatures.
• Alkaline therapy — A medical therapeutic method consisting of the internal or external administration of alkaline substances (such as sodium bicarbonate or alkaline mineral waters) for the purpose of neutralizing gastric hyperacidity, altering urinary pH, or correcting metabolic acidosis in the body. This structural treatment helps restore fluid homeostasis in various chronic diseases.
• Alkali — An archaic form or less frequent spelling variant for the noun 'alkali'; a generic name given to the soluble hydroxides of alkali metals. In old scientific literature, the term defined any compound capable of neutralizing acids and altering the coloration of plant-based chemical indicators.
• Alkalize — To make or become alkaline; to alter the chemical reaction of a medium by increasing the concentration of bases and raising the pH above the neutral value of 7. The term functions as a direct and frequent synonym of the verb 'alkalinize', being widely utilized in chemistry, medicine, agronomy, and industrial neutralization processes.
• Alkalization — The act of alkalizing and its result; a chemical, physiological, or industrial process through which the pH value of a medium is increased above the neutral threshold of 7. Alkalization is frequently used as a synonym for 'alkalinization', having essential applications in water treatment, the food industry (cocoa processing), and correcting acidic agricultural soils.