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2,2-二甲基-3-羟基丙醛

2,2-二甲基-3-羟基丙醛名称

[ CAS 号 ]:
597-31-9

[ 中文名 ]:
2,2-二甲基-3-羟基丙醛

[ 英文名 ]:
3-Hydroxy-2,2-dimethylpropanal

[中文别名 ]:

3-羟基-2,2-二甲基丙醛

[英文别名 ]:

Propanal, 3-hydroxy-2,2-dimethyl-
3-Hydroxy-2,2-dimethylpropanal

2,2-二甲基-3-羟基丙醛物理化学性质

[ 密度 ]:
1.0±0.1 g/cm3

[ 沸点 ]:
204.4±0.0 °C at 760 mmHg

[ 分子式 ]:
C₅H₁₀O₂

[ 分子量 ]:
102.132

[ 闪点 ]:
60.3±15.2 °C

[ 精确质量 ]:
102.068077

[ PSA ]:
37.30000

[ LogP ]:
-0.42

[ 蒸汽压 ]:
0.1±0.8 mmHg at 25°C

[ 折射率 ]:
1.422

2,2-二甲基-3-羟基丙醛毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TW5100000

CHEMICAL NAME :: Propanal, 2,2-dimethyl-3-hydroxy-

CAS REGISTRY NUMBER :: 597-31-9

LAST UPDATED :: 199710

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: C5-H10-O2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3200 mg/kg

TOXIC EFFECTS :: Behavioral - general anesthetic Behavioral - muscle weakness Behavioral - ataxia

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0533626

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 800 mg/kg

TOXIC EFFECTS :: Behavioral - general anesthetic Behavioral - muscle weakness Behavioral - ataxia

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0533626

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3200 mg/kg

TOXIC EFFECTS :: Behavioral - muscle weakness Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0533626

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1600 mg/kg

TOXIC EFFECTS :: Behavioral - muscle weakness Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0533626

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2,2-二甲基-3-羟基丙醛安全信息

[ 海关编码 ]:
2912491000

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2,2-二甲基-3-羟基丙醛制备

1.制法：

于装有搅拌器、温度计、滴液漏斗、回流冷凝器的反应瓶中，加入37%的甲醛水溶液630g，无水碳酸钾340g，剧烈搅拌下，慢慢滴加异丁醛（2）500g（6.94mol），控制反应温度15～20℃，加完后继续保温搅拌反应3h。静置分层，分层下层水层（回收碳酸钾），油层2,2-二甲基-3-羟基丙醛（1），冷却后固化。

2.制法：

于装有搅拌器、温度计、滴液漏斗、回流冷凝器的反应瓶中，加入37%的甲醛水溶液500g，异丁醛（2）500g（6.94mol），搅拌下滴加10%的氢氧化钠水溶液，控制反应温度20～25℃，加完后继续保温搅拌反应2h。静置分层，油层冷却后析出沉淀，即为2,2-二甲基-3-羟基丙醛（1）。