Silicon Dioxide-manufacture,factory,supplier from China

1. Product description:White crystal, crystalline powder or colorless hexagonal crystal. Odorless and tasteless. The relative density is 2.68; it has moisture absorption. Soluble in solvents such as ether, but insoluble in alcohol. The solubility in acid is greater than that in water. It decomposes in lye to produce sodium fluoride and silicon dioxide. After burning (300°C), it decomposes into sodium fluoride and silicon tetrafluoride. poisonous! The solubility of sodium fluorosilicate in water is 0.78% at 25 degrees.

1. Product description:Product nameSilicon DioxideCAS14808-60-7MFSiO2MW60.08EINECS215-684-8Melting point1610 °C(lit.)Stability2230 °CDensity2.6 g/mL at 25 °C(lit.)StorageStorage temperature: no restrictions.FormPowderColorWhitePackage25kg/bag2. Company introduction:Shenyu Energy(Shandong) Development Co., Ltd is Located in the beautiful spring city, Ji'nan Shandong, is a new enterprise integrating production, sales and service.Our products mainly include organic chemicals, inorganic chemicals, food additives, pharmaceutical intermediates, daily chemi

1. Product description:Magnesium carbonate, molecular weight 84.31. White granular powder. It decomposes at 350°C and loses carbon dioxide at 900°C. Slightly soluble in cold water, slowly soluble in acid. Its trihydrate is a colorless needle-like crystal, with a melting point of 1Chemicalbook 65°C and a relative density of 1.850. The pentahydrate is a white monoclinic crystal with a relative density of 1.73, which is decomposed by heating in the air. Carbon dioxide can be added into the magnesium salt aqueous solution while sodium carbonate is added to obtain a hydrate.

1. Product description:Product nameSelenium dioxideCAS7446-08-4MFSeO2MW110.96EINECS231-194-7Melting point315 °CBoiling point684.9 °C(lit.)Density4.81 g/mL at 25 °C(lit.)Solubility38.4 g/100 mL (14 ºC)StorageStore below +30°C.FormPowderColorWhitePackage25kg/bag2. Company introduction:Shenyu Energy(Shandong) Development Co., Ltd is Located in the beautiful spring city, Ji'nan Shandong, is a new enterprise integrating production, sales and service.Our products mainly include organic chemicals, inorganic chemicals, food additives, pharmaceutical int

1. Product description:Potassium hydroxide is commonly known as caustic potassium, potassium ash, etc. Industrial products mainly come in two forms, solid and liquid. The solid is white or light gray flakes or blocks, and the liquid potassium hydroxide is a light yellow liquid. The chemical properties are similar to that of sodium hydroxide. It is highly alkaline and corrosive. It is easily soluble in water and emits a lot of heat. It is also deliquescent. It can easily absorb moisture in the air and deliquescence. It is formed by absorbing carbon dioxide from Chemicalbook.

1. Product description:Sodium sulfite is an inorganic compound. It is a white granular powder at room temperature with the odor of sulfur dioxide, stable when dry, and sensitive to moisture. It is soluble in water and glycerin, but insoluble in ethanol. The aqueous solution is alkaline. Its aqueous solution is alkaline to litmus paper and phenolphthalein. It reacts with acid to produce toxic sulfur dioxide gas. The pH of 1Chemicalbook% aqueous solution is 8.3~9.4, with strong reduction sex.

1. Product description:Potassium carbonate is also known as potash. Its appearance is colorless crystals or white particles. It is easily soluble in water and its solution is strongly alkaline. Cooling its saturated aqueous solution, a glassy monoclinic crystal hydrate 2K2CO3·3H2O crystals separate, with a density of 2.043, and it loses crystal water at 100°C. Insoluble in ethanol, acetone and ether. It is highly hygroscopic and can absorb carbon dioxide and moisture when exposed to the air Chemicalbook, and transform it into potassium bicarbonate.

1. Product description:Sodium salicylate is a sodium salt of salicylic acid. It can be prepared from sodium phenolate and carbon dioxide under higher temperature and pressure. Historically, it has been synthesized from methyl salicylate (found in wintergreen plants or the bark of sweet birch tree) by reacting it with an excess of sodium hydroxide and heating it under reflux.It is used in medicine as an analgesic and antipyretic. Sodium salicylate also acts as non - steroidal anti - inflammatory drug (NSAID), and induces apoptosis in cancer cells and also necrosis.

1. Product description:Barium carbonate, chemical formula BaCO3, molecular weight 197.35. Hexagonal fine crystals or white powder. It is insoluble in water, with a density of 4.43 g/cm3, and a melting point of 1740°C (8820 kPa-Chemicalbook 90 atmospheres). Decomposes at 1450°C and emits carbon dioxide. Slightly soluble in water containing carbon dioxide, but also soluble in ammonium chloride or ammonium nitrate solution to form a complex, dissolved in hydrochloric acid and nitric acid to release carbon dioxide.

Magnesium oxide is commonly known as bitter soil, also known as magnesia. Is a typical alkaline earth metal oxide, chemical formula MgO. It is a white powder with a melting point of 2852°C, a boiling point of 3600°C, and a relative density of 3.58 (25°C). Soluble in acid and ammonium salt solution. Slowly react with water to generate magnesium hydroxide. It can be dissolved in carbon dioxide aqueous solution to generate magnesium bicarbonate. It can gradually absorb moisture and carbon dioxide in the air, and emit irritating smoke when heated.

1. Product description:Strontium carbonate, chemical formula SrCO3, molecular weight 147.63. Colorless prismatic crystal or white powder. At 926℃, it is converted to hexagonal crystal system. Melting point 1497℃(6.08×106Pa), relative density 3.70. Slightly soluble in water, slightly soluble in saturated solutions of carbon dioxide, soluble in ammonium chloride, ammonium nitrate and carbonic acid solutions. Carbon dioxide is produced by interaction with dilute hydrochloric acid, nitric acid and acetic acid. It begins to decompose at 820℃, and gradually loses carbon dioxide at 1340℃.

1. Product description:Ferric chloride is a black-brown hexagonal crystal, which is garnet red under transmitted light, and metallic green under reflected light. Easily soluble in water, methanol, ethanol, acetone and ether. Soluble in liquid sulfur dioxide, Chemicalbook phosphorus tribromide, phosphorus oxychloride, ethylamine, aniline, slightly soluble in carbon disulfide, insoluble in glycerin. Mainly used as water treatment agent, also used as mordant, catalyst, chlorinating agent, and used to make other iron salts.Black-brown hexagonal crystals.

1. Product description:Sodium hydroxide, the chemical formula for NaOH, commonly known as caustic soda, caustic soda, caustic soda, to have a caustic alkali, generally to sheet or block form, soluble in water, soluble in water heating) and formation of alkaline solution, otherwise deliquescence, easy to absorb water vapor in the air (deliquescence) and carbon dioxide (bad), can be in a hydrochloric acid test of whether metamorphism.NaOH is one of the essential chemicals in the chemical laboratory and one of the common chemicals. A pure product is a clear, colorless crystal.

1. Product description:Glycerol is colorless, odorless and sweet. Its appearance is clear, viscous and liquid. It is an organic substance. It is commonly known as glycerin. Glycerol absorbs moisture from air and absorbs hydrogen sulfide, hydrogen cyanide and sulfur dioxide. It is difficult to dissolve in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether and oil. Glycerol is the skeleton component of triglycerides.Glycerol can be esterified with acid, such as esterification with benzene two formic acid to form alkyd resin.

1. Product description:Magnesium sulfate, also known as sulphur, bitter salt, diarrhea salt, and epsom salt, is a compound containing magnesium. Appearance is colorless or white weatherable crystals or white powder. Odorless. It has a bitter and salty taste. Deliquescence. Magnesium sulfate heptahydrate loses six molecules of crystal water at 150°C and all crystal water at 200°C. The density of the anhydrate is 2.66, the melting point is 1124°C, and it decomposes at the same time. Easily soluble in water, soluble in alcohol, ether and glycerin, but insoluble in acetone.

1. Product description:Potassium sulfate is a kind of high-component quick-acting potassium fertilizer, mainly prepared from sulfate ore anhydrous magnesia and potassium chloride as raw materials. It is white or light yellow crystalline particles, and has two crystal forms: α-type and β-type . α-type is colorless crystal of hexagonal system, β-type is colorless crystal of orthorhombic system. It has a bitter and salty taste.

1. Product description:Nickel sulfate, also known as nickel alum, has a blue or green crystal appearance. It is an important nickel salt and is soluble in ethanol and ammonia. There are three forms of nickel sulfate crystals in nature: anhydrous, hexahydrate and heptahydrate. The products sold on the market are mainly hexahydrate, including two crystal forms, α and β, α type is blue green tetragonal crystal, β type It is a green transparent crystal, slightly soluble in alcohol, and easily soluble in methanol.

1. Product description:Magnesium sulfate, also known as sulphur, bitter salt, diarrhea salt, and epsom salt, is a compound containing magnesium. Appearance is colorless or white easily weathered crystal or white powder. Odorless. It has a bitter and salty taste. Deliquescence. Magnesium sulfate heptahydrate loses six molecules of crystal water at 150°C and all crystal water at 200°C. The density of the anhydrate is 2.66, the melting point is 1124°C, and it decomposes at the same time. Easily soluble in water, soluble in alcohol, ether and glycerin, but insoluble in acetone.

1. Product description:Sodium metabisulfite (chemical formula: Na2S2O5) appears as a white crystalline or powder solid with a slight sulfur odor. It is toxic upon inhalation and can strongly irritate skin and tissue. It can be decomposed to release toxic oxide fumes of sulfur and sodium upon high temperature. It can be mixed with water to form a corrosive acid. It is generally used as disinfectant, antioxidant, and preservative agent as well as a laboratory reagent. As a kind of food additive, it can be used as a preservative and antioxidant in food.

1. Product description:Sodium benzoate, also known as benzoic acid sodium, is commonly used as food preservatives in food industry, odorless or with slight smell of benzoin, and tastes sweet astringency. Stable in air, can absorb moisture in open air. It’s naturally found in blueberry, apple, plum, cranberry, prunes, cinnamon and cloves, with weaker antiseptic performance than benzoic acid. Antiseptic performance of 1.180g sodium benzoate is equivalent of about 1g benzoic acid.

1. Product description:Aluminum sulfate is one of the common aluminum salts, which is prone to hydrolysis, and the aqueous solution is acidic. Colorless or white crystals. Odorless, slightly sweet taste. Industrial products are yellow-green due to iron content, and have a sour taste. Stable in the air. It loses crystal water when heated to 250°C, and starts to decompose into aluminum oxide, sulfur trioxide and water vapor when heated to 700°C or higher. It is easily soluble in water, and the aqueous solution is acidic.

1. Product description:Sodium sulfide is also known as alkali sulfide, stinky soda, and stinky alkali. The pure product is colorless or purple prismatic crystals at room temperature. Industrial sodium sulfide is often pink, brownish red, or ocher due to impurities. It smells of rotten eggs, is corrosive, toxic, and has a density of 2.427. Decomposes at 920°C. It is soluble in cold water and easily soluble in hot water.

1. Product description:Sodium persulfate, also known as sodium peroxydisulfate is a white crystal or crystalline powder, odorless, tasteless. Formula is Na2S2O8, relative molecular mass is 238.13. Gradual decomposition at room temperature, heating or rapidly decompose in ethanol, decomposition to release oxygen and produce sodium pyrosulfate. Moisture and platinum black, silver, lead, iron, copper, magnesium, nickel, manganese and other metal ions or their alloys can promote the decomposition, it decomposes rapidly and emit hydrogen peroxide at high temperature (about 200 ℃).

1. Product description:Product nameo-PhthalaldehydeCAS643-79-8MFC8H6O2MW134.13EINECS211-402-2Melting point55-58 °C(lit.)Boiling point83-84 °C (0.7501 mmHg)Density1.13Flash point>230 °FStorageStore at RT.FormPowderColorWhitePackage25kg/bag2. Company introduction:Shenyu Energy(Shandong) Development Co., Ltd is Located in the beautiful spring city, Ji'nan Shandong, is a new enterprise integrating production, sales and service.Our products mainly include organic chemicals, inorganic chemicals, food additives, pharmaceutical intermediates, daily chemicals and ot