110-64-5 - Names and IdentifiersName2-Butene-1,4-diolSynonymsButenediolagrisynthb2dbutene-1,4-d
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| Nome | 2-Butene-1,4-diol |
| Sinonimi | 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- |
| Formula molecolare | C4H8O2 |
| massa molare | 88.11 |
| Densità | 1.07 g/mL at 25 °C(lit.) |
| Punto di fusione | 4-10°C(lit.) |
| punto Boling | 235°C(lit.) |
| Punto Flash | > 230 ° F |
| Solubilità in acqua | 131.4 at 12 mm Hg |
| Pressione del vapore | 2.46E-07mmHg at 25°C |
| Colore | yellow |
| pKa | 14.17±0.10(Predicted) |
| Indice di rifrattività | n20/D 1.479 |
| Proprietà fisiche e chimiche | 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. |
| Utilizzo | 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 |
| Simboli di pericolo | Xn - dannoso |
| Codici di rischio | R22 - Nocoso se ingoiato R36/37/38 - Irritante per gli occhi, il sistema respiratorio e la pelle. |
| Descrizione della sicurezza | S23 - Non respirare vapore. S24/25 Evitare il contatto con la pelle e gli occhi. S36 - Indossare abbigliamento protettivo adeguato. S26 In caso di contatto con gli occhi, risciacquare immediatamente con abbastanza acqua e richiedere consulenza medica. |
| WGK Germania | 3 |
| RTECS | EM4970000 |
| FLUKA MARCA F CODICI | 23 |
| Codice HS | 29053990 |
| Raw Materials | Calcium carbide Formaldehyde |
| Downstream Products | endosulfan |
| Applicazione | 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 |
| metodo di produzione | 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. |
| categoria | flammable liquid |
| grado di tossicità | poisoning |
| Tossicità acuta | oral-rat LD50: 1250 mg/kg; Intraperitoneal-rat LD50: 327 mg/kg |
| Caratteristiche di rischio di infiammabilità | flammability; Combustion stimulus smoke |
| Caratteristiche di stoccaggio e trasporto | warehouse ventilation and low temperature drying |
| agente estinguente | dry powder, foam, water |
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