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Fluorescent Whitening Agent (FWA)
It is a compound with a very high quantum efficiency, in the order of 1 million to 100,000 parts, which can effectively whiten natural or white substrates (such as textiles, paper, plastics, coatings). It can absorb the violet light with a wavelength of 340-380nm and emit blue light with a wavelength of 400-450nm, which can effectively make up for the yellowing caused by the blue light defect of white materials. It can improve the whiteness and brightness of the white material. The fluorescent whitening agent itself is colorless or light yellow (green) color, and is widely used in papermaking, textile, synthetic detergent, plastics, coatings and other industries at home and abroad. There are 15 basic structural types and nearly 400 chemical structures of fluorescent whitening agents that have been industrialized.
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AES-70 / AE2S / SLES
AES is easily soluble in water, with excellent decontamination, wetting, emulsification, dispersion and foaming properties, good thickening effect, good compatibility, good biodegradation performance (degradation degree up to 99%), mild washing performance will not damage the skin, low irritation to the skin and eyes, is an excellent anionic surfactant.
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Urea
It is an organic compound composed of carbon, nitrogen, oxygen and hydrogen, one of the simplest organic compounds, and is the main nitrogen-containing end product of protein metabolism and decomposition in mammals and some fish, and urea is synthesized by ammonia and carbon dioxide in industry under certain conditions.
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Calcium Oxide
Quick lime generally contains overheated lime, overheated lime maintenance is slow, if the stone ash paste hardening again, it will cause expansion cracking due to aging expansion. In order to eliminate this harm of lime burning, the lime should also be “aged” for about 2 weeks after maintenance. The shape is white (or gray, brown, white), amorphous, absorbing water and carbon dioxide from the air. Calcium oxide reacts with water to form calcium hydroxide and gives off heat. Soluble in acidic water, insoluble in alcohol. Inorganic alkaline corrosive articles, national hazard code :95006. Lime reacts chemically with water and is immediately heated to temperatures above 100°C.
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Selenium
Selenium conducts electricity and heat. The electrical conductivity changes sharply with the intensity of light and is a photoconductive material. It can react directly with hydrogen and halogen, and react with metal to produce selenide.
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Acetic acid
It is an organic monic acid, the main component of vinegar. Pure anhydrous acetic acid (glacial acetic acid) is a colorless hygroscopic liquid, its aqueous solution is weakly acidic and corrosive, and it is strongly corrosive to metals.
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Active Poly Sodium Metasilicate
It is an efficient, instant phosphorus free washing aid and an ideal substitute for 4A zeolite and sodium tripolyphosphate (STPP). Has been widely used in washing powder, detergent, printing and dyeing auxiliaries and textile auxiliaries and other industries.
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Sodium Alginate
It is a by-product of extracting iodine and mannitol from kelp or sargassum of brown algae. Its molecules are connected by β-D-mannuronic acid (β-D-Mannuronic acid, M) and α-L-guluronic acid (α-l-Guluronic acid, G) according to the (1→4) bond. It is a natural polysaccharide. It has the stability, solubility, viscosity and safety required for pharmaceutical excipients. Sodium alginate has been widely used in food industry and medicine.
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Formic acid
A colorless liquid with a pungent odor. Formic acid is a weak electrolyte, one of the basic organic chemical raw materials, widely used in pesticides, leather, dyes, medicine and rubber industries. Formic acid can be directly used in fabric processing, tanning leather, textile printing and dyeing and green feed storage, and can also be used as metal surface treatment agent, rubber auxiliary and industrial solvent.
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Sodium Carbonate
Inorganic compound soda ash, but classified as salt, not alkali. Sodium carbonate is a white powder, tasteless and odorless, easily soluble in water, aqueous solution is strongly alkaline, in humid air will absorb moisture clumps, part of the sodium bicarbonate. The preparation of sodium carbonate includes the joint alkali process, the ammonia alkali process, the Lubran process, etc., and it can also be processed and refined by trona.
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Phosphoric acid
A common inorganic acid, phosphoric acid is not easy to volatilize, not easy to decompose, almost no oxidation, with acid commonness, is a ternary weak acid, its acidity is weaker than hydrochloric acid, sulfuric acid, nitric acid, but stronger than acetic acid, boric acid, etc. Phosphoric acid is easily deliquified in the air, and heat will lose water to get pyrophosphoric acid, and then further lose water to get metaphosphate.
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Ammonium Bicarbonate
Ammonium bicarbonate is a white compound, granular, plate or columnar crystals, ammonia odor. Ammonium bicarbonate is a kind of carbonate, ammonium bicarbonate has ammonium ion in the chemical formula, is a kind of ammonium salt, and ammonium salt can not be put together with alkali, so ammonium bicarbonate should not be put together with sodium hydroxide or calcium hydroxide.
