112-18-5
N,N-dimethyldodecylamine
CAS: 112-18-5
Molecular Formula: C14H31N
112-18-5 - Names and Identifiers
| Name | N,N-dimethyldodecylamine |
| Synonyms | 12DMA DMA12 adma2 Adma 2 Adma12 DMA1297 Amine 2M12D antioxidantdda Antioxidant DDA Tetradecyl Amine Dimethyl Dodecyl Dimethyl Lauryl Amine Dodecyl dimethyl amine N,N-dimethyldodecylamine 1,1-Dimethyl-aminododecane N,N-dimethyldodecan-1-amine 1-Dodecanamine,N,N-dimethyl- Dodecyl-tetradecyl dimethyl amine [(2S,5R)-5-(6-amino-9H-purin-9-yl)tetrahydrofuran-2-yl]methanol |
| CAS | 112-18-5 |
| EINECS | 203-943-8 |
| InChI | InChI=1/C14H31N.BrH/c1-4-5-6-7-8-9-10-11-12-13-14-15(2)3;/h4-14H2,1-3H3;1H |
112-18-5 - Physico-chemical Properties
| Molecular Formula | C14H31N |
| Molar Mass | 213.4 |
| Density | 0.787g/mLat 20°C(lit.) |
| Melting Point | −20°C(lit.) |
| Boling Point | 80-82°C0.1mm Hg(lit.) |
| Flash Point | >230°F |
| Water Solubility | Negligible |
| Vapor Presure | <129 mm Hg ( 21 °C) |
| Appearance | Liquid |
| Specific Gravity | 0.786 (20℃) |
| Color | Clear |
| BRN | 1700191 |
| pKa | 9.78±0.28(Predicted) |
| Storage Condition | -20°C |
| Sensitive | Air & Moisture Sensitive |
| Refractive Index | n20/D 1.4375(lit.) |
| Physical and Chemical Properties | Boiling Point: 271 density: 0.787 |
| Use | For the preparation of fiber detergent, fabric softener, asphalt emulsifier, dye oil additives, metal rust inhibitor, antistatic agent |
112-18-5 - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R34 - Causes burns R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 2735 8/PG 2 |
| WGK Germany | 2 |
| RTECS | JR6600000 |
| FLUKA BRAND F CODES | 10-34 |
| TSCA | Yes |
| HS Code | 29211990 |
| Hazard Class | 8 |
| Packing Group | III |
112-18-5 - Upstream Downstream Industry
| Raw Materials | Stearic acid Lauric acid |
112-18-5 - Catalytic synthesis of dodecyl dimethyl tertiary amine
from hownet
Author:
Abstract:
twelve alkyl dimethyl tertiary amine in chemical industry, daily necessities in a wide range of applications. Fatty alcohol Catalytic Amination method with its environmental protection and economy, has gradually replaced the traditional enamine method, become the mainstream process of dodecyldimethylamine tertiary amine. Although copper-based catalysts and copper-based catalysts have been developed for many years, there is still great room for improvement in activity and selectivity. In this paper, according to the requirements of the reactants and products specified by the enterprise, through the design, build the pot reactor pilot experiment, compared with the Cu 60/8p, the performance of three different copper-based solid catalysts, 13MDH051 and Cu zerconia, was investigated. The best catalyst type was Cu 60/8p, the conversion was 96%, the selectivity was 90%, and the yield was 86.4%. Established and improved a set of using gas chromatography to analyze the various substances in the experimental samples, through the external standard method for quantitative analysis of the various substances produced in the reaction, better tracking and analysis of the whole reaction process, the trace water content of the experimental samples was measured by Karl Fischer moisture measurement method to track the experimental process and the deactivation of the catalyst. Based on the selectivity, conversion and yield of the reaction, the effects of reaction temperature, Catalyst type and catalyst content on the reaction were studied. The optimum conditions are 220 ℃ and catalyst content 1.5%. The kinetic equation of the Cascade catalytic reaction was established. The activation energy E was 18407.63J/mol, and the pre-exponential factor A was 0.15 s-1. The calculated values were in good agreement with the experimental values, R = 0.997. The adsorption dehydration process in the reaction process is simulated by substituting it into Arrhenius equation. The maximum error of breakthrough time of the algorithm is less than 2.2%. The error of predicting the height of different adsorption column is less than ± 5%. A mathematical model of continuous adsorption was established. The effects of gas Film mass transfer coefficient, pore diffusion coefficient and flow rate on the adsorption process were investigated. Without regard to the amount of gas treatment, reducing the flow rate by 2 times can prolong the penetration time by 17.8%. The calculation results are helpful to guide the further industrial application.
stowed
degree level:
MSc
degree year:
2018
Last Update：2023-08-16 22:08:29
112-18-5 - Chemical properties
colorless liquid. Melting Point -20 ℃, boiling point of 247 ℃,110-112 ℃(0.4kPa), relative density of 0.775, refractive index of 1.4375. Soluble in alcohols, insoluble in water.
Last Update：2024-04-10 22:29:15
112-18-5 - Reference Information
| LogP | 1.3-6.91 at 20℃ and pH7.1-8.8 |
| surface tension | 25.2mN/m at 1g/L and 25 ℃ |
| dissociation constant | 9.78 at 25 ℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | This product is an intermediate of quaternary ammonium salt type cationic surfactant. It can react with ethylene oxide, dimethyl sulfate, diethyl sulfate, methyl chloride, benzyl chloride and the like to generate different quaternary ammonium cations. It can react with sodium chloroacetate to obtain alkyl Betaine zwitterionic surfactant. used as an important intermediate in the synthesis of vitamin E used in the preparation of fiber detergent, fabric softener, asphalt emulsifier, dye oil additive, metal rust inhibitor, antistatic agent, etc |
| production method | Catalytic Amination of decanediol and dimethylamine in liquid phase at atmospheric pressure, 180-120 ℃, and removal of one minute of water to obtain crude tertiary amine, high purity of the final product of the tertiary amine was obtained by distillation under reduced pressure. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
112-18-5 - Safety Information
WGK Germany 2
RTECS#: jr660000
F 10-34
HazardClass 8
PackingGroup III
Toxic Substance Data 112-18-5(Hazardous Substances Data)
Last Update：2024-04-09 20:45:29
112-18-5 - Production method
Ten diol and dimethylamine in atmospheric pressure, 180-120 ° C Liquid Phase Catalytic Amination, remove a minute of water, that is, the crude tertiary amine, after vacuum distillation to obtain high purity of twelve tertiary amine products.
Last Update：2024-04-09 21:00:56
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Raw Materials for 112-18-5