110-64-5 - Names and IdentifiersName2-Butene-1,4-diolSynonymsButenediolagrisynthb2dbutene-1,4-d
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| Nom | 2 - butène - 1,4 - diol |
| Synonymes | Butènediol agrosynthb2d Butène - 1,4 - diol 2 - butène - 1,4 - diol Butène - 2 diol - 1,4 1,4-buenedilo (liquide) 1,4 dihydroxy - 2 - butène (2E)-2-butène-1,4-diol (z) - butène - 2 diol - 1,4 (2Z)-but-2-ène-1,4-diol (E)-but-2-ène-1,4-diol (2E)-but-2-ène-1,4-diol Cis - 1,4 - dihydroxy - 2 - butène |
| 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- |
| Formule moléculaire | C4H8O2 |
| Masse molaire | 88.11 |
| Densité | 1.07 g/mL at 25 °C(lit.) |
| Point de fusion | 4-10°C(lit.) |
| point Boling | 235°C(lit.) |
| Point d'éclair | > 230°F |
| Solubilité dans l'eau | 131.4 at 12 mm Hg |
| pression vapeur | 2.46E-07mmHg at 25°C |
| Couleur | yellow |
| Le PKA | 14.17±0.10(Predicted) |
| Indice de réfraction | n20/D 1.479 |
| Propriétés physiques et chimiques | 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. |
| Utilisation | 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 |
| Symboles de danger | XN - nocif |
| Codes de risque | R22 - nocif si avalé R36/37/38 - Irritant pour les yeux, le système respiratoire et la peau. |
| Description de la sécurité | S23 - ne pas inhaler les vapeurs. S24 / 25 - Eviter le contact avec la peau et les yeux. S36 - porter des vêtements de protection appropriés. S26 - En cas de contact avec les yeux, rincer immédiatement avec beaucoup d'eau et consulter un médecin. |
| Wgk Allemagne | 3 |
| Base de données sur la toxicité des substances chimiques | EM4970000 |
| Code F de la marque Fluka | 23 |
| Code SH | 29053990 |
| Matières premières | Calcium carbide Formaldéhyde |
| Produits en aval | endosulfan |
| Application | 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 |
| Méthode de production | 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. |
| Catégorie | flammable liquid |
| Classe de toxicité | poisoning |
| Toxicité aiguë | oral-rat LD50: 1250 mg/kg; Intraperitoneal-rat LD50: 327 mg/kg |
| caractéristiques de danger d'inflammabilité | flammability; Combustion stimulus smoke |
| Caractéristiques de stockage et de transport | warehouse ventilation and low temperature drying |
| Agent extincteur | dry powder, foam, water |
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