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280-57-9
bosschemical
280-57-9
Triethylenediamine
CAS No.280-57-9
Alias:1,4-Diaza[2.2.2]bicyclooctane;1,4-diazabicyclooctane;1,4-Diazobicyclo(2.2.2)octane;1,4-diazobicyclo[2.2.2]octane;1,4-Ethylenepiperazine;Bicyclo(2,2,2)-1,4-diazaoctane;o[2.2.2]octane;BACO
Molecular formula：C6H12N2
Molecular weight：112.17
Structural formula：
1. Performance and use:
Anhydrous material is flammable white crystal, very easy to deliquesce. Soluble in water, ethanol, acetone and benzene. solubility in water at 25℃ is 45g/100g, solubility in ethanol is 77g/100g, solubility in acetone is 13g/100g, solubility in benzene is 51g/100g.
Can be used in the production of polyurethane foam, elastomers and coatings and many other products Used in the production of polyurethane foam catalysts and oil additives
Preparation (1)Dissolve piperazine with methanol in advance, add 123.9g (1.05mol) dimethyl oxalate to the reaction flask with mechanical stirring device, add methanol until completely dissolved, add 4.3g sodium methanol, then take 86g (1mol) piperazine dissolved with methanol at a temperature of 40 ℃ slowly added dropwise, dropwise stirred for 1 ~ 2 hours after filtration, the resulting cake washed with methanol, drying, the intermediate product dioxytrioxane is obtained. Drying, to get the intermediate product dioxytriethylene diamine; (2) to the high-pressure reactor to add step (1) produced by the dioxytriethylene diamine, add tetrahydrofuran to completely dissolve, add 4.3g palladium carbon, the kettle lid cover tightly sealed, heating to 175 ℃, to the high-pressure valve filled with hydrogen to the pressure to 5MPa, the reaction process continues to charge hydrogen to maintain the pressure until the pressure is no longer a significant drop, to get the three (3) open the exhaust valve of the high-pressure reactor exhaust, open the kettle cover, down to room temperature, the step (2) obtained by the crude triethylene diamine filtration to remove the catalyst, distillation of tetrahydrofuran and add ethanol pulping, filtration, the resulting cake drying, the final product of triethylene diamine 98.11 g. Calculation of triethylene diamine molar yield of 87.6%, the purity of gas-phase test triethylene diamine is 99.0%. The purity of triethylenediamine was 99.0%.
2.Technical indicators:
| Item | Unit | Spec. Limit | Result |
| Appearance | Clear liquid | Clear liquid | |
| CONTENT | % | Min99.90 | 99.92 |
| WATER | % | Max 0.5 | 0.27 |
3. Packaging and storage:
Packaging specification:25kg/bag, also can be determined according to user's need.
During transportation, it is necessary to protect against sunlight, rain, and high temperatures.
The product should be stored in a cool, dark, ventilated place, away from sources of fire.
4.Safety protection:
Pay attention to labor protection when handling it and avoid contact with skin, eyes, etc.After contact, rinse immediately with plenty of water
Related keywords：
Triethylenediamine
CAS No.280-57-9
Triethylenediamine
CAS No.280-57-9
Alias:1,4-Diaza[2.2.2]bicyclooctane;1,4-diazabicyclooctane;1,4-Diazobicyclo(2.2.2)octane;1,4-diazobicyclo[2.2.2]octane;1,4-Ethylenepiperazine;Bicyclo(2,2,2)-1,4-diazaoctane;o[2.2.2]octane;BACO
Molecular formula：C6H12N2
Molecular weight：112.17
Structural formula：
1. Performance and use:
Anhydrous material is flammable white crystal, very easy to deliquesce. Soluble in water, ethanol, acetone and benzene. solubility in water at 25℃ is 45g/100g, solubility in ethanol is 77g/100g, solubility in acetone is 13g/100g, solubility in benzene is 51g/100g.
Can be used in the production of polyurethane foam, elastomers and coatings and many other products Used in the production of polyurethane foam catalysts and oil additives
Preparation (1)Dissolve piperazine with methanol in advance, add 123.9g (1.05mol) dimethyl oxalate to the reaction flask with mechanical stirring device, add methanol until completely dissolved, add 4.3g sodium methanol, then take 86g (1mol) piperazine dissolved with methanol at a temperature of 40 ℃ slowly added dropwise, dropwise stirred for 1 ~ 2 hours after filtration, the resulting cake washed with methanol, drying, the intermediate product dioxytrioxane is obtained. Drying, to get the intermediate product dioxytriethylene diamine; (2) to the high-pressure reactor to add step (1) produced by the dioxytriethylene diamine, add tetrahydrofuran to completely dissolve, add 4.3g palladium carbon, the kettle lid cover tightly sealed, heating to 175 ℃, to the high-pressure valve filled with hydrogen to the pressure to 5MPa, the reaction process continues to charge hydrogen to maintain the pressure until the pressure is no longer a significant drop, to get the three (3) open the exhaust valve of the high-pressure reactor exhaust, open the kettle cover, down to room temperature, the step (2) obtained by the crude triethylene diamine filtration to remove the catalyst, distillation of tetrahydrofuran and add ethanol pulping, filtration, the resulting cake drying, the final product of triethylene diamine 98.11 g. Calculation of triethylene diamine molar yield of 87.6%, the purity of gas-phase test triethylene diamine is 99.0%. The purity of triethylenediamine was 99.0%.
2.Technical indicators:
| Item | Unit | Spec. Limit | Result |
| Appearance | Clear liquid | Clear liquid | |
| CONTENT | % | Min99.90 | 99.92 |
| WATER | % | Max 0.5 | 0.27 |
3. Packaging and storage:
Packaging specification:25kg/bag, also can be determined according to user's need.
During transportation, it is necessary to protect against sunlight, rain, and high temperatures.
The product should be stored in a cool, dark, ventilated place, away from sources of fire.
4.Safety protection:
Pay attention to labor protection when handling it and avoid contact with skin, eyes, etc.After contact, rinse immediately with plenty of water
Related keywords：
Triethylenediamine
CAS No.280-57-9
