Product name:1,4-Dibromobutane
CAS: 110-52-1
Molecular Formula: C4H8Br2
Molecular Weight: 215.9143
Product description:Colorless or light yellow liquid. Melting point 16.53 ℃ (20 ℃), the boiling point of 197-198 ℃ (1.46 kPa), 76 ℃ (1.47 kPa), relative density 1.7890 (20/4 ℃), the refractive index of 1.5190, flash point 54 ℃. Soluble in chloroform, alcohol and ether, insoluble in water.By tetrahydrofuran via ring opening, bromide. Add hydrobromic acid reaction pot, stir in drip and tetrahydrofuran, again add sulfuric acid, temperature control under 50 ℃. Then heat up to 108 ℃ or so back 4 h, after the reaction continues to stir 1 h, put cold divide the lower liquid, washing to neutral, with soda solution and anhydrous calcium chloride, filtering to finished products.Organic synthesis intermediates, used in the manufacture of aminophylline and cough will clean Nao, flooding, etc. Used in the manufacture of aminophylline and cough will clean Nao, flooding, etc.
2017年6月30日星期五
Piperonyl aldehyde price
Product name:Piperonyl aldehyde
CAS: 120-57-0
Molecular Formula: C8H6O3
Molecular Weight: 150.13
Product description:Natural product a few exist in Benedict, cranberry, melon, sweet pepper, chicken, sherry, robinia genus such as oil and incense was medium. White or yellowish-white flash crystallization, with reddish brown after exposure in the air. The sweet vanilla and cherry aromas. 37 ℃ melting point, boiling point of 264 ℃. Easily soluble in ethanol and ethyl ether, soluble in propylene alcohol and most of the volatile oil, slightly soluble in mineral oil, insoluble in glycerin and water.Widely used in perfumes and spices, cherries and vanilla and spices. Can also be used for the synthesis of organic matter.
CAS: 120-57-0
Molecular Formula: C8H6O3
Molecular Weight: 150.13
Product description:Natural product a few exist in Benedict, cranberry, melon, sweet pepper, chicken, sherry, robinia genus such as oil and incense was medium. White or yellowish-white flash crystallization, with reddish brown after exposure in the air. The sweet vanilla and cherry aromas. 37 ℃ melting point, boiling point of 264 ℃. Easily soluble in ethanol and ethyl ether, soluble in propylene alcohol and most of the volatile oil, slightly soluble in mineral oil, insoluble in glycerin and water.Widely used in perfumes and spices, cherries and vanilla and spices. Can also be used for the synthesis of organic matter.
Ethyl myristate for sale
Product name:Ethyl myristate
CAS: 124-06-1
Molecular Formula: C16H32O2
Molecular Weight: 256.4241
Product description:Colorless to pale yellow liquid. A coconut and iris aroma and sweet flavor beeswax. Melting point is 10.5 ℃, boiling point of 178 ~ 180 ℃ (1600 pa). Insoluble in water, soluble in ethanol, slightly soluble in ether. Natural products exist in by molasses from fusel oil residue.Colorless to pale yellow liquid. A coconut and iris aroma and sweet flavor beeswax. Melting point is 10.5 ℃, boiling point of 178 ~ 180 ℃ (1600 pa). Insoluble in water, soluble in ethanol, slightly soluble in ether. Natural products exist in by molasses from fusel oil residue.
CAS: 124-06-1
Molecular Formula: C16H32O2
Molecular Weight: 256.4241
Product description:Colorless to pale yellow liquid. A coconut and iris aroma and sweet flavor beeswax. Melting point is 10.5 ℃, boiling point of 178 ~ 180 ℃ (1600 pa). Insoluble in water, soluble in ethanol, slightly soluble in ether. Natural products exist in by molasses from fusel oil residue.Colorless to pale yellow liquid. A coconut and iris aroma and sweet flavor beeswax. Melting point is 10.5 ℃, boiling point of 178 ~ 180 ℃ (1600 pa). Insoluble in water, soluble in ethanol, slightly soluble in ether. Natural products exist in by molasses from fusel oil residue.
How to buy 2-Methylfuran
Product name:2-Methylfuran
CAS: 534-22-5
Molecular Formula: C5H6O
Molecular Weight: 82.1
Product description:Colorless liquid, with ether smell, in air or sunlight yellow to black. Slightly soluble in water, but soluble in ethanol, ether, acetone, etc.By furfural (or furfuryl alcohol) system of catalytic hydrogenation. Hydrogenation catalyst using copper and aluminum alloy, using alkali as catalyst promoter, pressure is 0.3 to 0.3 MPa, at about 200 ℃ for gas phase hydrogenation of furfural and hydrogen mole ratio of 10:1. Reaction products by condensation, steamed to moisture, rectification and finished products. Raw material consumption quota: furfural (96%) of 1400 kg/t, hydrogen m3kg 630 / t, copper and aluminum catalyst 114 kg/t.Used for producing vitamin B1, phosphate chloroquine and primaquine phosphate drugs, such as synthetic strain pesticide and essence, also is very good solvent.
CAS: 534-22-5
Molecular Formula: C5H6O
Molecular Weight: 82.1
Product description:Colorless liquid, with ether smell, in air or sunlight yellow to black. Slightly soluble in water, but soluble in ethanol, ether, acetone, etc.By furfural (or furfuryl alcohol) system of catalytic hydrogenation. Hydrogenation catalyst using copper and aluminum alloy, using alkali as catalyst promoter, pressure is 0.3 to 0.3 MPa, at about 200 ℃ for gas phase hydrogenation of furfural and hydrogen mole ratio of 10:1. Reaction products by condensation, steamed to moisture, rectification and finished products. Raw material consumption quota: furfural (96%) of 1400 kg/t, hydrogen m3kg 630 / t, copper and aluminum catalyst 114 kg/t.Used for producing vitamin B1, phosphate chloroquine and primaquine phosphate drugs, such as synthetic strain pesticide and essence, also is very good solvent.
Calcium hydride for sale
Product name:Calcium hydride
CAS: 789-78-8
Molecular Formula: CaH2
Molecular Weight: 40.078
Product description:Gray crystallization or block, easy deliquescence.Insoluble in carbon disulphide, slightly soluble in strong acid.At 600 ℃ is decomposed into the Ca and H2. Decomposition under the influence of water release hydrogen at the same time, also can react with ethanol to produce calcium hydrogen and ethanol. Reduction of metal oxides more strongly than sodium hydride or lithium hydride. React with water to produce H2 gas. CaH2 has by above method, the high heat generated.Used as a reducing agent in organic synthesis and condensing agent, also used as a desiccant and hydrogen production of materials.
CAS: 789-78-8
Molecular Formula: CaH2
Molecular Weight: 40.078
Product description:Gray crystallization or block, easy deliquescence.Insoluble in carbon disulphide, slightly soluble in strong acid.At 600 ℃ is decomposed into the Ca and H2. Decomposition under the influence of water release hydrogen at the same time, also can react with ethanol to produce calcium hydrogen and ethanol. Reduction of metal oxides more strongly than sodium hydride or lithium hydride. React with water to produce H2 gas. CaH2 has by above method, the high heat generated.Used as a reducing agent in organic synthesis and condensing agent, also used as a desiccant and hydrogen production of materials.
Sodium hydrosulfide price
Product name:Sodium hydrosulfide
CAS: 16721-80-5
Molecular Formula: NaHS
Molecular Weight: 56.06
Product description:Colorless needle crystal. Easy deliquescence. Melting point at the liberation of hydrogen sulfide. Soluble in water and alcohol. A strong alkaline solution. Acid reaction to generate hydrogen sulfide. Bitter taste. Dye industrial preparation of sulphur dyes used for synthesis of organic intermediates and additives, used for hair removal and tanning rawhide leather industry, fertilizer industry is used to remove the activated carbon desulfurization agent of monomer sulfur and mining industry for a lot of copper processing, in the production of synthetic fibers used for sulfurous acid dyeing, etc., is a manufacturer of ammonium sulfide and pesticide ethanethiol semi-finished materials, also used for waste water treatment, etc. By alcali sulphide or caustic soda solution absorbing hydrogen sulfide gas.
CAS: 16721-80-5
Molecular Formula: NaHS
Molecular Weight: 56.06
Product description:Colorless needle crystal. Easy deliquescence. Melting point at the liberation of hydrogen sulfide. Soluble in water and alcohol. A strong alkaline solution. Acid reaction to generate hydrogen sulfide. Bitter taste. Dye industrial preparation of sulphur dyes used for synthesis of organic intermediates and additives, used for hair removal and tanning rawhide leather industry, fertilizer industry is used to remove the activated carbon desulfurization agent of monomer sulfur and mining industry for a lot of copper processing, in the production of synthetic fibers used for sulfurous acid dyeing, etc., is a manufacturer of ammonium sulfide and pesticide ethanethiol semi-finished materials, also used for waste water treatment, etc. By alcali sulphide or caustic soda solution absorbing hydrogen sulfide gas.
N-butyl methacrylate for sale
Product name:N-butyl methacrylate
CAS: 97-88-1
Molecular Formula: C8H14O2
Molecular Weight: 142.22
Product description:Colorless, has a sweet taste and odor ester liquid.Insoluble in water, miscible soluble in alcohol, ether, soluble in most organic solvents.Used as a polymer monomer, used in the production of modified organic glass, transparent film, make paper, fabric, leather finishing agent, polish, used as a paint solvent.The preparation of polymer or copolymer monomer. Used to modified organic glass, and can be used as paper, leather, textile finishing agent, emulsifier, polish, deodorant. Also can be used as a solvent, paints and coatings used as oil additives and the binder composition.
CAS: 97-88-1
Molecular Formula: C8H14O2
Molecular Weight: 142.22
Product description:Colorless, has a sweet taste and odor ester liquid.Insoluble in water, miscible soluble in alcohol, ether, soluble in most organic solvents.Used as a polymer monomer, used in the production of modified organic glass, transparent film, make paper, fabric, leather finishing agent, polish, used as a paint solvent.The preparation of polymer or copolymer monomer. Used to modified organic glass, and can be used as paper, leather, textile finishing agent, emulsifier, polish, deodorant. Also can be used as a solvent, paints and coatings used as oil additives and the binder composition.
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