110-64-5 - Names and IdentifiersName2-Butene-1,4-diolSynonymsButenediolagrisynthb2dbutene-1,4-d
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| Nombre | 2-Butene-1,4-diol |
| Sinónimos | Butenediol agrisynthb2d butene-1,4-diol 2-Butene-1,4-diol but-2-ene-1,4-diol 1,4-buenedilo(liquid) 1,4-Dihydroxy-2-butene (2E)-2-Butene-1,4-diol (Z)-but-2-ene-1,4-diol (2Z)-but-2-ene-1,4-diol (E)-but-2-ene-1,4-diol (2E)-but-2-ene-1,4-diol CIS-1,4-DIHYDROXY-2-BUTENE |
| CAS | 110-64-5 |
| EINECS | 203-787-0 |
| InChI | InChI=1/2C4H8O2/c2*5-3-1-2-4-6/h2*1-2,5-6H,3-4H2/b2-1+;2-1- |
| Fórmula Molecular | C4H8O2 |
| Masa Molar | 88.11 |
| Densidad | 1.07 g/mL at 25 °C(lit.) |
| Punto de fusión | 4-10°C(lit.) |
| punto Boling | 235°C(lit.) |
| Punto Flash | >230°F |
| Disolución del agua | 131.4 at 12 mm Hg |
| Presión de vapor | 2.46E-07mmHg at 25°C |
| color | yellow |
| PKa | 14.17±0.10(Predicted) |
| Índice de refracción | n20/D 1.479 |
| Propiedades físicas y químicas | Character: colorless liquid. boiling point 84 ℃ relative density 1.070 refractive index 1.4770 flash point 128 ℃ soluble in water, ethanol, acetone, almost insoluble in lower aliphatic hydrocarbons or aromatic hydrocarbons. |
| Uso | It can be used as plasticizer of alkyd resin, crosslinking agent of synthetic resin, bactericide, etc. It can also be used for making nylon, Medicine, 1, 4-butanediol, etc |
| Símbolos de peligro | Xn - Dañino |
| Códigos de riesgo | R22 - Dañino si se traga R36 / 37 / 38 - irrita los ojos, el sistema respiratorio y la piel. |
| Descripción de seguridad | S23 - Do not breathe vapour. S24 / 25 - evite el contacto con la piel y los ojos. S36 - Use ropa protectora adecuada. S26 En caso de contacto con los ojos, enjuagar inmediatamente con mucha agua y buscar asesoramiento médico. |
| WGK Alemania | 3 |
| RTECS | EM4970000 |
| FLUKA BRAND F CODES | 23 |
| Número de aranceles | 29053990 |
| Raw Materials | Calcium carbide Formaldehyde |
| Downstream Products | endosulfan |
| Aplicación | used as plasticizer of alkyd resin, crosslinking agent of synthetic resin, bactericide, etc, 1, 4-butenediol is a pesticide and pharmaceutical intermediate, which is used in the synthesis of organic chlorine pesticide endosulfan. It is mainly used as an intermediate for preparing pesticides, agricultural chemicals and vitamin B6, and is used in a small amount for polymer production. used as plasticizer for alkyd resin, cross-linking agent for synthetic resin, bactericide, etc., and also used for making nylon, Medicine, 1, 4-butanediol and so on |
| production method | is obtained by catalytic hydrogenation of butynediol. After mixing a 40% aqueous solution of butynediol with 50% of Raney nickel, ammonia water as a inhibitor was added, and hydrogen was applied at a pressure of about 0.5MPa until the theoretical hydrogen absorption amount was reached. After filtration, the filtrate was distilled under reduced pressure, and the 110-114 ° C. (8kPa) fraction was collected to obtain butenediol. The preparation method is catalytic hydrogenation of 1, 4-butynediol to obtain 1, 4-butenediol. After mixing 40% aqueous butynediol solution with 50% Raney nickel, inhibitor ammonia water was added, and hydrogen gas was introduced at a pressure of about 0.5kPa until the theoretical hydrogen absorption amount was reached. After filtration, the filtrate was distilled under reduced pressure, and a fraction of 110 to 114 ° C./8kPa was collected to obtain 1, 4-butenediol. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 1250 mg/kg; Intraperitoneal-rat LD50: 327 mg/kg |
| flammability hazard characteristics | flammability; Combustion stimulus smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| extinguishing agent | dry powder, foam, water |
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