Semicarbazide Hydrochloride

Supplier: Chemicals like caustic soda hydrochloride semicarbazide hydrochloride
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Supplier: Uv absorber 531 (bp-12), uv absorber 9 (bp-3), uv absorber 0 (bp-1), semicarbazide hydrochloride, 2-chloronicotinic acid, hydrobromic acid

Uv absorber 531 Chemical name: 2-hydroxy-4-octyloxy benzophenone (benzophenone-12) Cas no: 1843-05-6 Molecular formula: c21h26o3 Structural formula: Property : ó·yellowish crystals; ó·yellowish fine powder Freely soluble in benzene, n-hexane, acetone, slightly soluble in ethanol, very slightly soluble in ethane dichloride. Specification Contentú¦í²99 % Melting point: 47~49 ípc Ash: ín0.1 % Light transmittance: (450nm)í²90% (500nm)í²95% Characteristics and uses: This product is a light stabilizer with good performance, capable of absorbing the uv radiation of 240-340 nm wavelength with the characteristics of light color, nontoxic , good compatibility, small mobility, easy processing etc. It can protect the polymer to its maximum extent, helps to reduce the color. It can also delay the yellowing and obstacle the loss of its physical function. It is widely applied to pe, pvc, pp, ps, pc organic glass, polypropylene fiber, ethylene-vinyl acetate etc. Moreover, it has very good light-stability effect on drying phenol aldehyde, varnish of alcohol and acname, polyurethane, acrylate, expoxnamee etc. Its dosage is 0.1%-0.5%. Package: packed in cardboard drums lined with plastic bags with the net capacity of 20 kg per bag.

We are professional uv absorber manufacture in china. Have a good sales in china and international market. With good quanlity and competitive price. Please contact us directly for more information.King_success@126.Com Chemical name: 2-hydroxy-4-methoxybenzophenone ú¿benzophenone-3ú¬ Cas no : 131-57-7 Molecular formula: c14h12o3 Structural formula : Property : Yellowish crystalline powder, freely soluble in most organic solvents, not soluble in water. Specification : Content í²99.9 % Melting point : 62~65ípc Loss on drying(55ía2ípc) ín0.3% Content of ash: ín0.1% Light transmittance(290-400nm)í² 93 % Characteristics and uses: This product is a high-efficienct uv radiation absorbing agent, capable of effectively absorbing uv radiation of 290-400 nm wavelength , but it almost does not absorb visible light, particularly applicable to light-colored transparent products. It is well stable to light and heat, not decomposable below 200ípc, applicable to paint and various plastic products, particular effective to polyvinyl chloirde, polystyrene, polyurethane, acrylic resin, light-colored transparent furniture, as well as to cosmetics , with the dosage of 0.1-0.5%. 20kg/25kg carton or drum. Or according to customer's require.

1,10 Phenanthroline Monohydrate, 18-Crown-6-Ether, 1-Amino-2 Naphthol-4-Sulphonic Acid, 1-Naphthol, 2,4 Dinitrophenyl Hydrazine, 2,6 Diacetylpyridine 2-Amino 5-Chloro pyridine, 2-Amino-3,5-Dibromobenzaldehyde, 3,4-Dihydroxybenzaldehyde, 3,5 Dinitrosalicylic Acid, 3-Chlorobenzoic Acid 4-Bromo Aniline, 4-Dimethylamino Benzaldehyde, 4-Hydroxy Coumarin 5 Sulphosalicylic Acid, Aesculin, Alpha - Benzoin Oxime (Cupron) Anthrone, Benzanilide, Biuret, Chromotropic Acid (disodium salt), Crystal Violet (Gentian Violet), Diacetyl Monoxime, Dimethylglyoxime, Diphenyl Amine, Diphenyl Carbazide, Diphenyl Carbazone, Dpx Mountant, Edta Disodium Salt, Edta Potassium Salt, Ethidium Bromide, Gold Chloride, Hippuric Acid, Homophthalic Acid, Hydroiodic Acid, Hydroxylamine_Hydrochloride, Indole 3 Acetic Acid Indole 3 Butyric Acid, Indole- 3- Propionic Acid, Iodine Pentoxide, Maltose Meta Phosphoric Acid Sticks, Methyl Salicylate, M-Phosphoric Acid (sticks) N-1 Naphthyl Ethylene Diamine Dihydrochoride, N-Benzyl-4-Piperidone N-Bromo Succinimide, Ninhydrin, N-Phenylanthranilic Acid, Ortho Tolidine Dihydrochloride, Para Dimethylamino Benzaldehyde, P-Bromo Acetanilide Phenyl Hydrazine, Phenyl Hydrazine Hydrochloride, Phenyl Hydrazine Sulphate Phenyl Mercuric Nitrate, Phloroglucinol, Phosphomolybdic Acid Powder,Phosphotungstic Acid, Pyrogallol, Quinhydrone, Salicin, Semicarbazide Hydrochloride, Silico Tungstic acid, Silicon Dioxide, Soda Lime, Tuccinimide Tulphanilic Acid, Thioacetamide, Thiomalic Acid, Thiosemicarbazide Trichloroacetic Acid, Trimethyl Sulfoxonium Iodide, Triphenyl Phosphite, Urease & Other