| 中文名 |
乙酰胺
|
| 英文名 |
acetamide
|
| 中文别名 |
醋酸胺
C2 酰胺
醋酰胺
乙酸胺
|
| 英文别名 |
METHYLFORMAMIDE
Acetic-d3 acid-d
Acetamide
acetic amide
EINECS 200-473-5
monomethylformamide
Methylcarbylamine
Tetradeuteroacetic acid
Ethanamide
Acetic acid-d4
MFCD00008023
|
| 描述 |
Acetamide 主要用作溶剂和增塑剂。
|
| 相关类别 |
|
| 靶点 |
Human Endogenous Metabolite
|
| 密度 |
1.0±0.1 g/cm3
|
| 沸点 |
78.4±23.0 °C at 760 mmHg
|
| 熔点 |
78-80 °C(lit.)
|
| 分子式 |
C2H5NO
|
| 分子量 |
59.067
|
| 闪点 |
1.2±22.6 °C
|
| 精确质量 |
59.037113
|
| PSA |
43.09000
|
| LogP |
-0.91
|
| 外观性状 |
白色结晶固体
|
| 蒸汽压 |
62.4±0.3 mmHg at 25°C
|
| 折射率 |
1.418
|
| 储存条件 |
1.密封干燥保存。
2.本品用铁桶包装,每桶180kg。存放于阴凉、通风、干燥处,避免阳光照射,不能接近火源,搬运时注意轻取轻放,按有毒物品规定运输。
|
| 稳定性 |
1.化学性质:乙酰胺水溶液加热时发生水解,生成醋酸铵。与五氧化二磷一类强脱水剂加热时生成乙腈。与甲胺盐酸盐反应生成N-甲基乙酰胺CH3CONHCH3。在乙酸溶液中,40~50℃时与乙炔和羰基镍作用,生成N-乙酰基丙烯酰胺。与亚硝酸反应生成乙酸和氮气:
在碱性溶液中与次氯酸钠作用变成N-氯代乙酰胺,进而发生Hofmann反应,生成甲胺:
与三氯乙醛反应生成CCl3CH(OH)NHCOCH3。在碳酸钙存在下乙酰胺水溶液受日光照射时,发生光分解反应。
2.本品低毒。可经皮肤吸收,强烈刺激眼、皮肤和黏膜。空气中最高允许浓度20*10-6。其毒性比二甲基甲酰胺强。现场操作必须穿戴好防护用品。溅及皮肤后要用大量清水冲洗。
3. 存在于烟气中。纯品无臭,工业品有鼠臭。
|
| 水溶解性 |
2000 g/L (20 ºC)
|
| 分子结构 |
1、 摩尔折射率:14.87
2、 摩尔体积(cm3/mol):62.3
3、 等张比容(90.2K):145.8
4、 表面张力(dyne/cm):29.9
5、 极化率(10-24cm3):5.89
|
| 计算化学 |
1.疏水参数计算参考值(XlogP):-0.9
2.氢键供体数量:1
3.氢键受体数量:1
4.可旋转化学键数量:0
5.互变异构体数量:3
6.拓扑分子极性表面积43.1
7.重原子数量:4
8.表面电荷:0
9.复杂度:33
10.同位素原子数量:0
11.确定原子立构中心数量:0
12.不确定原子立构中心数量:0
13.确定化学键立构中心数量:0
14.不确定化学键立构中心数量:0
15.共价键单元数量:1
|
| 更多 |
1. 性状:无色六角形结晶。纯品无气味,但通常有鼠臭味。
2. 沸点(ºC,101.3kPa):221.15
3. 熔点(ºC):81
4. 相对密度(g/mL,91.1/4ºC):0.9892
5. 相对密度(g/mL,111.8/4ºC):0.9711
6. 相对密度(d204) :1.159
7. 折射率(80ºC):1.4270
8. 折射率(110ºC):1.4158
9. 折射率(130ºC):1.4079
10. 黏度(mPa·s,91.1ºC):2.182
11. 黏度(mPa·s,111.8ºC):1.46
12. 黏度(mPa·s,131.7ºC):1.056
13. 闪点(ºC,闭口):>104
14. 燃点(ºC):445
15. 蒸发热(KJ/mol,b.p.):56.1
16. 熔化热(KJ/mol,80ºC):15.717
17. 生成热(KJ/mol):-320.7
18. 燃烧热(KJ/mol,25ºC,液体):1199.5
19. 比热容(KJ/(kg·K),80~150ºC,定压):2.81
20. 电导率(S/m,83.2ºC):8.8×10-7
21. 电导率(S/m,100ºC):4.3×10-7
22. 凝固点(ºC):80
23. 溶解性:溶于液氨、脂肪族胺、水、醇、吡啶、氯仿、甘油、热苯、丁酮、丁醇、苄醇、环己酮、异戊醇等,微溶于苯,不溶于乙醚。对大多数无机盐类都能很好的溶解。
|
毒理学数据:
毒性较低,大鼠经口LD50为2500mg/kg。慢性毒性试验表明小鼠经152周出现有毒症状的量(TD)为360mg/kg。小鱼试验的鱼毒性96小时的TLm为3000mg/L。
急性毒性:
口腔 LD50 12900mg/kg(mus)
7000mg/kg(rat)
主要的刺激性影响:
在皮肤上面:可能引起发炎
在眼睛上面: 可能引起发炎
致敏作用:没有已知的敏化作用。
生态学数据:
总括注解
水危害级别1(德国规例)(通过名单进行自我评估)该物质对水有稍微危害的。
不要让未稀释或大量的产品接触地下水、水道或污水系统。
即使是极其小量的产品渗入地下也会对饮用水造成危险
CHEMICAL IDENTIFICATION
-
RTECS NUMBER :
-
AB4025000
-
CHEMICAL NAME :
-
Acetamide
-
CAS REGISTRY NUMBER :
-
60-35-5
-
BEILSTEIN REFERENCE NO. :
-
1071207
-
LAST UPDATED :
-
199710
-
DATA ITEMS CITED :
-
38
-
MOLECULAR FORMULA :
-
C2-H5-N-O
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MOLECULAR WEIGHT :
-
59.08
-
WISWESSER LINE NOTATION :
-
ZV1
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
-
ROUTE OF EXPOSURE :
-
Oral
-
SPECIES OBSERVED :
-
Rodent - rat
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DOSE/DURATION :
-
7 gm/kg
-
TOXIC EFFECTS :
-
Details of toxic effects not reported other than lethal dose value
-
TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
-
ROUTE OF EXPOSURE :
-
Intraperitoneal
-
SPECIES OBSERVED :
-
Rodent - rat
-
DOSE/DURATION :
-
10300 mg/kg
-
TOXIC EFFECTS :
-
Behavioral - altered sleep time (including change in righting reflex) Behavioral - muscle weakness Lungs, Thorax, or Respiration - dyspnea
-
TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
-
ROUTE OF EXPOSURE :
-
Subcutaneous
-
SPECIES OBSERVED :
-
Rodent - rat
-
DOSE/DURATION :
-
10 gm/kg
-
TOXIC EFFECTS :
-
Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage) Autonomic Nervous System - smooth muscle relaxant (mechanism undefined, spasmolytic) Cardiac - change in rate
-
TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
-
ROUTE OF EXPOSURE :
-
Intravenous
-
SPECIES OBSERVED :
-
Rodent - rat
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DOSE/DURATION :
-
12500 mg/kg
-
TOXIC EFFECTS :
-
Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Sense Organs and Special Senses (Eye) - lacrimation
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TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
-
Unreported
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SPECIES OBSERVED :
-
Rodent - rat
-
DOSE/DURATION :
-
2300 mg/kg
-
TOXIC EFFECTS :
-
Details of toxic effects not reported other than lethal dose value
-
TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
-
ROUTE OF EXPOSURE :
-
Oral
-
SPECIES OBSERVED :
-
Rodent - mouse
-
DOSE/DURATION :
-
12900 mg/kg
-
TOXIC EFFECTS :
-
Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Sense Organs and Special Senses (Eye) - lacrimation
-
TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
-
ROUTE OF EXPOSURE :
-
Intraperitoneal
-
SPECIES OBSERVED :
-
Rodent - mouse
-
DOSE/DURATION :
-
1 gm/kg
-
TOXIC EFFECTS :
-
Details of toxic effects not reported other than lethal dose value
-
TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
-
ROUTE OF EXPOSURE :
-
Subcutaneous
-
SPECIES OBSERVED :
-
Rodent - mouse
-
DOSE/DURATION :
-
8300 mg/kg
-
TOXIC EFFECTS :
-
Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage) Autonomic Nervous System - smooth muscle relaxant (mechanism undefined, spasmolytic) Cardiac - change in rate
-
TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
-
ROUTE OF EXPOSURE :
-
Intravenous
-
SPECIES OBSERVED :
-
Rodent - mouse
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DOSE/DURATION :
-
10 gm/kg
-
TOXIC EFFECTS :
-
Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Sense Organs and Special Senses (Eye) - lacrimation
-
TYPE OF TEST :
-
LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
-
Intravenous
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SPECIES OBSERVED :
-
Rodent - rabbit
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DOSE/DURATION :
-
7500 mg/kg
-
TOXIC EFFECTS :
-
Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Sense Organs and Special Senses (Eye) - lacrimation
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TYPE OF TEST :
-
LDLo - Lowest published lethal dose
-
ROUTE OF EXPOSURE :
-
Intravenous
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SPECIES OBSERVED :
-
Bird - chicken
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DOSE/DURATION :
-
33410 mg/kg
-
TOXIC EFFECTS :
-
Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
-
TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
-
Oral
-
SPECIES OBSERVED :
-
Rodent - rat
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DOSE/DURATION :
-
431 gm/kg/1Y-C
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TOXIC EFFECTS :
-
Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors Nutritional and Gross Metabolic - weight loss or decreased weight gain
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TYPE OF TEST :
-
TDLo - Lowest published toxic dose
-
ROUTE OF EXPOSURE :
-
Oral
-
SPECIES OBSERVED :
-
Rodent - mouse
-
DOSE/DURATION :
-
517 gm/kg/1Y-C
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TOXIC EFFECTS :
-
Tumorigenic - Carcinogenic by RTECS criteria Blood - tumors Blood - lymphoma, including Hodgkin's disease
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TYPE OF TEST :
-
TD - Toxic dose (other than lowest)
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ROUTE OF EXPOSURE :
-
Oral
-
SPECIES OBSERVED :
-
Rodent - rat
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DOSE/DURATION :
-
546 gm/kg/52W-C
-
TOXIC EFFECTS :
-
Tumorigenic - neoplastic by RTECS criteria Liver - tumors
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TYPE OF TEST :
-
TDLo - Lowest published toxic dose
-
ROUTE OF EXPOSURE :
-
Oral
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DOSE :
-
39 gm/kg
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SEX/DURATION :
-
female 6-18 day(s) after conception
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TOXIC EFFECTS :
-
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Specific Developmental Abnormalities - musculoskeletal system
-
TYPE OF TEST :
-
TDLo - Lowest published toxic dose
-
ROUTE OF EXPOSURE :
-
Oral
-
DOSE :
-
13 gm/kg
-
SEX/DURATION :
-
female 6-18 day(s) after conception
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TOXIC EFFECTS :
-
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
-
TYPE OF TEST :
-
Micronucleus test
MUTATION DATA
-
TYPE OF TEST :
-
Morphological transformation
-
TEST SYSTEM :
-
Rodent - hamster Embryo
-
DOSE/DURATION :
-
1 mg/L
-
REFERENCE :
-
IJCNAW International Journal of Cancer. (International Union Against Cancer, 3 rue du Conseil- General, 1205 Geneva, Switzerland) V.1- 1966- Volume(issue)/page/year: 19,642,1977 *** REVIEWS *** IARC Cancer Review:Animal Sufficient Evidence IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,389,1987 IARC Cancer Review:Human No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 7,197,1974 IARC Cancer Review:Group 2B IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,56,1987 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-FINLAND;Carcinogen JAN 1993 OEL-GERMANY;Carcinogen JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 81686 No. of Facilities: 404 (estimated) No. of Industries: 17 No. of Occupations: 21 No. of Employees: 4668 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81686 No. of Facilities: 132 (estimated) No. of Industries: 4 No. of Occupations: 4 No. of Employees: 2074 (estimated) No. of Female Employees: 1148 (estimated)
|
| 符号 |
GHS08
|
| 信号词 |
Warning
|
| 危害声明 |
H351
|
| 警示性声明 |
P281
|
| 个人防护装备 |
dust mask type N95 (US);Eyeshields;Gloves
|
| 危害码 (欧洲) |
Xn:Harmful
|
| 风险声明 (欧洲) |
R40
|
| 安全声明 (欧洲) |
S36/37
|
| 危险品运输编码 |
UN 3077 9/PG 3
|
| WGK德国 |
1
|
| RTECS号 |
AB4025000
|
| 海关编码 |
2924199090
|
【方法一】
冰醋酸通氨生成乙酸铵,再经热解脱水而得乙酰胺,经结晶、分离得成品。原料消耗定额:乙酸(99%)1700kg/t,液氨(99%)750kg/t。实验室合成可按下面步骤操作。在5L烧瓶中放入3kg冰醋酸,加入相当于400g氨的碳酸铵。烧瓶上装高效分馏柱、冷凝器和接受器。将反应混合物加热至缓缓沸腾,调节加热使蒸馏速度不超过180mg/h,起到顶温达110℃为止。得1400-1500ml水和乙酸的混合物。换接收器,慢慢加大加热,以同样速度继续蒸馏,直至顶温升到140℃为止。得馏出物500-700ml,主要为乙酸,留作下次投料用。将剩余物移入带分馏柱和空气冷凝器的烧瓶中,常压蒸馏,分别收集210℃以前和210-216℃馏分。后者为乙酰胺,重1150-1200g,前者还可以蒸馏回收部分产品,两者共重1200-1250g,产率87%-90% 。乙酰胺常采用蒸馏与溶剂重结晶的方法进行精制。常用的溶剂有丙酮、苯、乙酸乙酯、乙酸甲酯、氯仿、二恶烷或苯与乙酸乙酯混合液。例如,将1kg上述方法制备的乙酰胺,用1L苯和300ml乙酸乙酯的混合溶剂重结晶,可得无色针状纯品。工业生产获得的产品,纯度不低于98%,凝固点不低于76℃。
| 海关编码 |
2924199017
|
| 中文概述 |
HS:2924199017 解草烯 增值税率:17.0% 退税率:9.0% 监管条件:无 最低关税:6.5% 普通关税:30.0%
|
| Summary |
HS:2924199017 acetamide VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%
|
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