您好,欢迎来到魔法化学网!

| CAS号 : | 77-76-9 |
精确质量 : | 104.08400 |
| 分子式 : | C5H12O2 |
logP : | 1.01530 |
| 分子量 : | 104.14800 |
PSA : | 18.46000 |
2,2-二甲氧基丙烷 | |
2,2-Dimethoxypropane | |
77-76-9 | |
C5H12O2 | |
104.14800 | |
18.46000 | |
1.01530 | |
104.08400 |
|
1.376-1.378
|
|
|
透明液体
|
|
|
-5ºC
|
|
|
83ºC
|
|
|
-47ºC
|
|
|
0.847
|
|
|
Stable. Highly flammable - note low flash point. Vapour may form an explosive mixture with air. May form explosive peroxides when exposed to air. Incompatible with strong oxidizing agents.
|
|
|
Flammables area
|
GHS02, GHS07 | |
危险 | |
H225; H319 | |
|
S16-S26-S33-S37/39-S9
|
|
|
II
|
|
|
UN 1993 3/PG 2
|
|
|
2911000000
|
|
|
F
|
|
|
R11; R36/37/38
|
HS:2911000000.Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives |
|
品名, 成分含量, 用途 |
|
2911000000 缩醛及半缩醛,不论是否含其他含氧基,及其卤化,磺化,硝化和亚硝化衍生物。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:5.5%。普通关税:30.0% |
|
2911000000 acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
|
HS:2911000000.Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives. General tariff:5.0% |
|
|
间接法合成2,2-二甲氧基丙烷。以乙二醇和丙酮为原料经2,2二甲基-1,3-二氧环戊烷(DMD)合成2,2-二甲氧基丙烷的工艺条件。选用二氯甲烷为带水剂、无水硫酸铁为催化剂,合成DMD后,再与甲醇交换,选用三氯化铝为催化剂合成DMP。两步反应的总收率达到60%。 | |
用作医药中间体,主要用于羟基保护及脱水。 |