107-29-9 - Names and IdentifiersNameacetaldehyde oximeSynonymsAAOAcetaldoximeEthanoneoximeACETO
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| Nama | acetaldehyde oxime |
| Sinonim | AAO Acetaldoxime Ethanoneoxime ACETOALDOXIME acetaldehyde oxime (1Z)-ethanal oxime (1E)-ethanal oxime N-hydroxyethanimine (E)-acetaldehyde oxiMe Acetaldehyde oxime (cis+trans) Acetaldoxime,syn+ anti,(Acetaldehydeoxime) Acetaldoxime, syn + anti, (Acetaldehyde oxime) |
| CAS | 107-29-9 |
| EINECS | 203-479-6 |
| InChI | InChI=1/C2H5NO/c1-2-3-4/h2,4H,1H3/b3-2- |
| Rumus Molekuler | C2H5NO |
| Massa Molar | 59.07 |
| Kepadatan | 0.98g/mLat 25°C |
| Titik Melting | 44-46 °C |
| Titik Boling | 115°C(lit.) |
| Titik Flash | 135°F |
| Kelarutan air | soluble |
| Solubilitas | 185g/l |
| Tekanan Vapor | 13 hPa (25 °C) |
| Penampilan | Low Melting Solid or Liquid |
| warna | White or clear |
| Merck | 14,42 |
| BRN | 1209252 |
| pKa | 11.82±0.10(Predicted) |
| Kondisi penyimpanan | 2-8°C |
| Batas ledakan | 4.2-50%(V) |
| Indeks Refraksi | n20/D 1.426(lit.) |
| Sifat fisik dan kimia | Density 0.969 melting point 44-46°C boiling point 115°C refractive index 1.425-1.127 flash point 38°C water soluble |
| Penggunaan | Used as intermediates in organic synthesis, pesticide methomyl intermediates, boiler water oxygen scavenger |
| Kode Risiko | R36/37/38 Irritasi pada mata, sistem pernapasan dan kulit. R20/21/22 - Sakit dengan inhalasi, dalam kontak dengan kulit dan jika ditelan. Please take the official translations! You find them here: http: // europa. eu. int/ eur- lex/ lex/ LexUriServ/ LexUriServ. do? uri=CELEX: 32001L0059: EN: HTML R36 - Irritating to the eyes R20/22 - Harmful by inhalation and if swallowed. |
| Deskripsi Keselamatan | S26 - Jika kontak dengan mata, bilas segera dengan banyak air dan minta saran medis. S36 - Pakai pakaian pelindung yang sesuai. S24/25 Hindari kontak dengan kulit dan mata. Please take the official translations! You find them here: http: // europa. eu. int/ eur- lex/ lex/ LexUriServ/ LexUriServ. do? uri=CELEX: 32001L0059: EN: HTML |
| ID PBB | UN 2332 3/PG 3 |
| WGK Jerman | 3 |
| RTECS | AB2975000 |
| TSCA | Ya |
| Kode HS | 29280090 |
| Kelas Bahaya | 3 |
| Kelompok Kemasan | III |
| Toksitas | LD50 orally in Rabbit: 740 mg/kg |
| Downstream Products | Methylthio acetaldoxime Methomyl |
| LogP | -0.13 |
| Overview | acetaldoxime is a less toxic reducing agent that replaced the toxic hydrazine as a boiler water oxygen scavenger in the 1990s, and its oxygen removal effect is 40 times that of hydrazine, so it is widely used as a new type of oxygen scavenger. Acetaldoxime is also an important intermediate in the synthesis of pesticides methomyl and thiodicarb. These two pesticides are good broad-spectrum insecticides, and the production capacity is increasing, and the demand for acetaldoxime is also increasing. |
| Properties and stability | colorless needle-like crystals. There are two crystalline forms, the α-form and the β-form. Relative molecular mass 59.07. The relative density was 0.9656. Melting Point: 46.5 ℃(α-type), 12 ℃(β-type). Boiling point 114.5 °c. Refractive index 1.4257. Soluble in water, ethanol and ether. Under the action of dilute acid, it will decompose into acetaldehyde and hydroxylamine. It is produced by the action of hydroxylamine in an aqueous solution of acetaldehyde. For the identification or purification of acetaldehyde. Avoid contact with strong oxidants and strong acids. Flammable, irritating to the respiratory system and skin of the eyes. Proper protective clothing should be worn when used in large quantities. In case of contact with the eyes, immediately after washing with plenty of water, call a doctor for diagnosis. FIG. 1 shows the structural formula of acetaldoxime. |
| Penggunaan | 1, pesticide intermediates, preparation of pesticides "methomyl", "thiodicarb"; Organic synthesis intermediates. After melting as many inorganic and organic compounds excellent solvent, organic synthesis, stability, plasticizer, alcohol denaturant. 3. Amides were produced by one-pot reaction of aldoxime. In the presence of catalyst InCl3, acetaldoxime was substituted for water and reacted with nitrile to form amide with high yield. glyoxime is an intermediate for the synthesis of pesticides methomyl, thiomyl and sesomyl. used in organic synthesis. used as intermediates in organic synthesis, pesticide methomyl intermediates, boiler water oxygen scavenger, etc. test cobalt, copper and nickel. Boiler water oxygen scavenger, pharmaceutical, pesticide intermediates. |
| storage method | 1. Store in a cool and ventilated warehouse. Keep away from fire and heat source. Storage temperature should not exceed 30 ℃. It should be stored separately from oxidants, acids and edible chemicals, and mixed storage should not be avoided. Explosion-proof lighting and ventilation facilities shall be adopted. The use of spark-prone mechanical equipment and tools is prohibited. The storage area shall be equipped with emergency treatment equipment for leakage and appropriate containment materials. 2. Sealed and protected from light. |
| metode produksi | acetaldoxime is obtained by reacting hydroxylamine with an aqueous solution of acetaldehyde. Reaction equation: CH3CHO NH2OH · HCl NaOH → CH3CH = NOH NaCl H2O in the current industrial production, the high content of Crystal hydroxylamine sulfate is widely used as raw material, at the time of use, it is further formulated into a 20% to 50% aqueous solution, and then reacted with acetaldehyde to produce acetaldoxime. The reaction equation is as follows: CH3CHO (NH2OH)2 · H2SO4 → CH3CH = NOH acetaldehyde is added into the above-mentioned hydroxylamine sulfate aqueous solution, the reaction is carried out at 40~50 ℃ for 2H, and the inorganic salt is removed after cooling, A clear and transparent aqueous solution containing about 50% of acetaldoxime was obtained. It was found that the amount of impurities in the aqueous solution was very small except for acetaldoxime and water, and the yield of acetaldoxime was more than 90% (based on hydroxylamine sulfate), this aqueous solution is subjected to extraction and purification to obtain a acetaldoxime product having a content of 90% or more. |
| kategori | flammable liquid |
| kelas toksik | toksisitas tinggi |
| Toksikitas akut | abdominal injection-mouse LD50: 100 mg/kg |
| explosive hazard characteristics | mixture of vapor and air can be exploded |
| karakteristik bahaya kebakaran | flammable; High heat releases toxic nitrogen oxide gas |
| karakteristik penyimpanan dan transportasi | The warehouse is ventilated and dried at low temperature; Storage and transportation is separated from oxidant |
| agen pemadam | bubuk kering, karbon dioksida, pasir, busa |
| suhu pembakaran spontan | 380°C |
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