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Hard Soap
Hard soaps (), also termed soda soaps in older terminology, are categorized under soaps and are typically sodium salts of fatty acids. They vary in color from white to brownish and have a fatty acid content ranging from 72 to 75%. These soaps are typically made from lower-quality fats. Hard soaps serve as the foundation for products frequently labeled as fine soaps, which are fortified with nourishing additives, perfumes, and dyes. Naming The term ''hard soap'' originates from the soap production process. During this process, the addition of salt (sodium chloride) to boiling soap mixed with a substantial amount of water causes the ''soap nucleus'' to separate and solidify, making it "harder" and allowing it to float on the surface. Production Through the process of saponification, fats (like tallow, pig, and bone fats) or vegetable oils react with sodium hydroxide to form the sodium salts of fatty acids and glycerin.''Brockhaus ABC Chemistry'', VEB F. A. Brockhaus Pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalli Kernseife
Dalli may refer to: Places * Dallı, Aşkale * Dalli Rajhara Dalli-Rajhara is a town and a municipality in Balod district in the state of Chhattisgarh, India. Dalli Rajhara is home of iron ore captive mines for Bhilai Steel Plant, the largest integrated steel plant in India. Dalli mines deposit was discove ..., a city and a municipality, Durg district, Chhattisgarh State, India * Dalli, Tanout, a former town in Tanout District, Zinder Region, Niger Other uses * Dalli (surname) See also * Dali (other) * DALI (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oils
An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) and lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturated lipids that are liquid at room temperature. The general definition of oil includes classes of chemical compounds that may be otherwise unrelated in structure, properties, and uses. Oils may be animal, vegetable, or petrochemical in origin, and may be volatile or non-volatile. They are used for food (e.g., olive oil), fuel (e.g., heating oil), medical purposes (e.g., mineral oil), lubrication (e.g. motor oil), and the manufacture of many types of paints, plastics, and other materials. Specially prepared oils are used in some religious ceremonies and rituals as purifying agents. Etymology First attested in English 1176, the word ''oil'' comes from Old French ''oile'', from -4; we might wonder whether there's a point at which it's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphids
Aphids are small sap-sucking insects in the Taxonomic rank, family Aphididae. Common names include greenfly and blackfly, although individuals within a species can vary widely in color. The group includes the fluffy white Eriosomatinae, woolly aphids. A typical life cycle involves flightless females giving Viviparity, live birth to female Nymph (biology), nymphs—who may also be already Pregnancy, pregnant, an adaptation scientists call telescoping generations—without the involvement of males. Developmental biology, Maturing rapidly, females breed profusely so that the number of these insects multiplies quickly. Alate, Winged females may develop later in the season, allowing the insects to colonize new plants. In Temperate climate, temperate regions, a phase of sexual reproduction occurs in the autumn, with the insects often overwintering as eggs. The life cycle of some species involves an alternation between two species of host plants, for example between an annual crop and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrips
Thrips (Order (biology) , order Thysanoptera) are minute (mostly long or less), slender insects with fringed wings and unique asymmetrical mouthparts. Entomologists have species description , described approximately 7,700 species. They fly only weakly and their feathery wings are unsuitable for conventional flight; instead, thrips exploit an unusual mechanism, #Flight , clap and fling, to create lift using an unsteady circulation pattern with transient vortices near the wings. Thrips are a functionally diverse group; many of the known species are fungivorous. A small proportion of the species are serious Pest (organism) , pests of commercially important crops. Some of these serve as Disease vector , vectors for over 20 viruses that cause plant disease, especially the Tospoviruses. Many flower-dwelling species bring benefits as pollinators, with some predatory thrips feeding on small insects or mites. In the right conditions, such as in greenhouses, invasive species can expone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cultivar
A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting, micropropagation, tissue culture, or carefully controlled seed production. Most cultivars arise from deliberate human genetic engineering, manipulation, but some originate from wild plants that have distinctive characteristics. Cultivar names are chosen according to rules of the International Code of Nomenclature for Cultivated Plants (ICNCP), and not all cultivated plants qualify as cultivars. Horticulturists generally believe the word ''cultivar''''Cultivar'' () has two meanings, as explained in ''#Formal definition, Formal definition'': it is a classification category and a taxonomic unit within the category. When referring to a taxon, the word does not apply to an individual plant but to all plants t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pest Control
Pest control is the regulation or management of a species defined as a pest (organism), pest; such as any animal, plant or fungus that impacts adversely on human activities or environment. The human response depends on the importance of the damage done and will range from tolerance, through deterrence and management, to attempts to completely eradicate the pest. Pest control measures may be performed as part of an integrated pest management strategy. In agriculture, pests are kept at bay by Mechanical pest control, mechanical, tillage, cultural, pesticide, chemical and biological pest control , biological means. Ploughing and cultivation of the soil before sowing mitigate the pest burden, and crop rotation helps to reduce the build-up of a certain pest species. Concern about environment means limiting the use of pesticides in favour of other methods. This can be achieved by monitoring the crop, only applying Pesticide, pesticides when necessary, and by growing Variety (botany), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Painting
Oil painting is a painting method involving the procedure of painting with pigments combined with a drying oil as the Binder (material), binder. It has been the most common technique for artistic painting on canvas, wood panel, or oil on copper, copper for several centuries. The advantages of oil for painting images include "greater flexibility, richer and denser color, the use of layers, and a wider range from light to dark". The oldest known oil paintings were created by Buddhism, Buddhist artists in Afghanistan, and date back to the 7th century AD. Oil paint was later developed by Europeans for painting statues and woodwork from at least the 12th century, but its common use for painted images began with Early Netherlandish painting in Northern Europe, and by the height of the Renaissance, oil painting techniques had almost completely replaced the use of egg tempera paints for panel paintings in most of Europe, though not for Orthodox icons or wall paintings, where tempera a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dyes
Juan de Guillebon, better known by his stage name DyE, is a French musician. He is known for the music video of the single "Fantasy (DyE song), Fantasy" from his first album ''Taki 183 (album), Taki 183''. This video became popular, attracting over 65 million views, 49 million of those within two years. Discography Albums *''Taki 183 (album), Taki 183'' (2011) *''Cocktail Citron'' (2014) *''Inside Out (2018)'' *''MySpace (2024)'' EPs *''Imperator'' (2009) *''Emo Machine'' (2017) References External linksDyE at Myspace French musicians Living people Year of birth missing (living people) {{France-musician-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defoamer
A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. The terms anti-foam agent and defoamer are often used interchangeably. Strictly speaking, defoamers eliminate existing foam and anti-foamers prevent the formation of further foam. Commonly used agents are insoluble oils, polydimethylsiloxanes and other silicones, certain alcohols, stearates and glycols. The additive is used to prevent formation of foam or is added to break a foam already formed. In industrial processes, foams pose serious problems. They cause defects on surface coatings and prevent the efficient filling of containers. A variety of chemical formulae are available to prevent formation of foams. Properties Generally a defoamer is insoluble in the foaming medium and has surface active properties. An essential feature of a defoamer product is a low viscosity and a facility to spread rapidly on foamy surfaces. It has affinity to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soap Scum
Soap scum or lime soap is the white solid composed of calcium stearate, magnesium stearate, and similar alkaline earth metal derivatives of fatty acids. These materials result from the addition of soap and other anionic surfactants to hard water. Hard water contains calcium and magnesium ions, which react with the surfactant anion to give these metallic or lime soaps. :2 C17H35COO−Na+ + Ca2+ → (C17H35COO)2Ca + 2 Na+ In this reaction, the sodium cation in soap is replaced by calcium to form calcium stearate. Lime soaps build deposits on fibres, washing machines, and sinks. Synthetic surfactants are less susceptible to the effects of hard water. Most detergents contain builders that prevent the formation of lime soaps. See also * Water softening Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium io ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dreadlocks
Dreadlocks, also known as dreads or locs, are a Hairstyle, hairstyle made of rope-like strands of matted hair. Dreadlocks can form naturally in Hair#Texture, very curly hair, or they can be created with techniques like twisting, Backcombing, backcombing, or crochet. Etymology The word ''dreadlocks'' is usually understood to come from Jamaican Creole ''dread'', "member of the Rastafari, Rastafarian movement who wears his hair in dreadlocks" (compare Nazirite), referring to their fear of God, dread or awe of God. An older name for dreadlocks was ''Wiktionary:elflock, elflocks'', from the notion that elf, elves had matted the locks in people's sleep. Other origins have been proposed. Some authors trace the term to the Mau Mau rebellion, Mau Mau, a group of whom apparently coined it from British Empire, British colonialists in 1959 as a reference to their dreadful hair. In their 2014 book ''Hair Story: Untangling the Roots of Black Hair in America'', Ayana Byrd and Lori Tharps cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
