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1,2-Benzenedicarboxylic acid

1,2-Benzenedicarboxylic acid用途

Dibutyl phthalate是一种常用的增塑剂,常见于一些食品包装材料,个人护理产品和口服药物涂层[1]。 可能引起毒性和不良神经行为影响[2][3]。
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1,2-Benzenedicarboxylic acid名称

[ CAS 号 ]:
84-74-2

[ 中文名 ]:
邻苯二甲酸二正丁酯

[ 英文名 ]:
1,2-Benzenedicarboxylic acid

[中文别名 ]:

[英文别名 ]:

1,2-Benzenedicarboxylic acid生物活性

[ 描述 ]:

Dibutyl phthalate是一种常用的增塑剂,常见于一些食品包装材料,个人护理产品和口服药物涂层[1]。 可能引起毒性和不良神经行为影响[2][3]。

[ 相关类别 ]:

信号通路 >> 其他 >> 其他
研究领域 >> 癌症
研究领域 >> 神经疾病
天然产物 >> 其他

[体外研究]

邻苯二甲酸二丁酯(0.001μg/ mL-1000μg/ mL)对卵泡生长和活力有害,并且以剂量特异性方式导致细胞周期和凋亡基因表达的显着失调。但MBP在体外暴露的卵泡中对邻苯二甲酸二丁酯的毒性没有作用[1]。

[体内研究]

邻苯二甲酸二丁酯(200,400或600 mg/kg /天)诱导减轻小鼠体重,减少精子发生,降低血清卵泡刺激素和睾酮水平,改变睾丸LDH,增加LPO,并降低酶抗氧化剂水平与组织病理学异常[2]。邻苯二甲酸二丁酯(6.25,12.5,25,50,100和200 mg/kg)可能对小鼠造成一些神经行为不良反应[3]。

[参考文献]

[1]. Rasmussen LM, et al. Effects of in vitro exposure to dibutyl phthalate, mono-butyl phthalate, and acetyl tributyl citrate on ovarian antral follicle growth and viability. Biol Reprod. 2017 May 1;96(5):1105-1117.

[2]. Aly HA, et al. Dibutyl phthalate induces oxidative stress and impairs spermatogenesis in adult rats. Toxicol Ind Health. 2016 Aug;32(8):1467-1477.

[3]. Farzanehfar V, et al. Determination of dibutyl phthalate neurobehavioral toxicity in mice. Food Chem Toxicol. 2016 Aug;94:221-6.


[相关活性小分子]

磺丁基-β-环糊精钠盐 | 环孢霉素A | 2-(3,6-二乙酰氧基-2,7-二氯-9H-氧杂蒽-9-基)苯甲酸 | 1-甲基-4-苯基-1,2,3,6-四氢吡啶盐酸盐 | GW4869 | 乙莫克舍 | (2R,2'R,3R,3'R,4S,4'S,5R,5'R,6S,6'S)-6,6'-硫代双(4-(4-(3-氟苯基)-1H-1,-1H-1,2,3-三唑-1-基)-2-(羟甲基)四氢-2H-吡喃-3,5-二醇) | Mitoquinone甲磺酸盐 | GSK2795039 | CBIC2 | BAPTA-AM | AP20187 | GKT137831 | D-(-)-荧光素 | 单响尾蛇毒蛋白

1,2-Benzenedicarboxylic acid物理化学性质

[ 密度 ]:
1.1±0.1 g/cm3

[ 沸点 ]:
337.0±10.0 °C at 760 mmHg

[ 熔点 ]:
-35 °C

[ 分子式 ]:
C16H22O4

[ 分子量 ]:
278.344

[ 闪点 ]:
171.1±0.0 °C

[ 精确质量 ]:
278.151794

[ PSA ]:
52.60000

[ LogP ]:
4.82

[ 外观性状 ]:
透明液体

[ 蒸汽密度 ]:
9.6 (vs air)

[ 蒸汽压 ]:
0.0±0.7 mmHg at 25°C

[ 折射率 ]:
1.499

[ 储存条件 ]:
包装完整、轻装轻放,库房通风、远离明火、高温、与氧化剂分开存放

[ 水溶解性 ]:
Slightly soluble. 0.0013 g/100 mL

[ 凝固点 ]:
-35℃

1,2-Benzenedicarboxylic acidMSDS

详细MSDS(安全技术说明书)

1,2-Benzenedicarboxylic acid毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TI0875000
CHEMICAL NAME :
Phthalic acid, dibutyl ester
CAS REGISTRY NUMBER :
84-74-2
BEILSTEIN REFERENCE NO. :
1914064
LAST UPDATED :
199807
DATA ITEMS CITED :
77
MOLECULAR FORMULA :
C16-H22-O4
MOLECULAR WEIGHT :
278.38
WISWESSER LINE NOTATION :
4OVR BVO2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Human
DOSE/DURATION :
140 mg/kg
TOXIC EFFECTS :
Behavioral - hallucinations, distorted perceptions Gastrointestinal - nausea or vomiting Kidney, Ureter, Bladder - other changes
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
8 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
4250 mg/m3
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
6 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 :
3050 uL/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 :
Intramuscular
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>8 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 :
Unreported
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
9410 mg/kg
TOXIC EFFECTS :
Behavioral - general anesthetic Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
5289 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
25 gm/m3/2H
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 - mouse
DOSE/DURATION :
3570 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 :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
720 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 :
Unreported
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
8140 mg/kg
TOXIC EFFECTS :
Behavioral - general anesthetic Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>20 mL/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 - guinea pig
DOSE/DURATION :
10 gm/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - withdrawal Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - species unspecified
DOSE/DURATION :
5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
96750 mg/kg/45D-I
TOXIC EFFECTS :
Endocrine - other changes Nutritional and Gross Metabolic - weight loss or decreased weight gain Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
28 gm/kg/14D-I
TOXIC EFFECTS :
Related to Chronic Data - changes in testicular weight
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
4 gm/kg/4D-I
TOXIC EFFECTS :
Related to Chronic Data - changes in testicular weight
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
27300 mg/kg/13W-C
TOXIC EFFECTS :
Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight Blood - normocytic anemia
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
22750 mg/kg/1Y-C
TOXIC EFFECTS :
Behavioral - food intake (animal) Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
900 mg/m3/6H/35D-I
TOXIC EFFECTS :
Brain and Coverings - changes in brain weight Blood - normocytic anemia Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
54600 mg/kg/13W-C
TOXIC EFFECTS :
Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
2250 mg/kg
SEX/DURATION :
female 7-9 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
2520 mg/kg
SEX/DURATION :
female 1-21 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - extra-embryonic structures (e.g., placenta, umbilical cord)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
8820 mg/kg
SEX/DURATION :
female 7-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Effects on Embryo or Fetus - fetal death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
16800 mg/kg
SEX/DURATION :
male 7 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1500 mg/kg
SEX/DURATION :
female 15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - musculoskeletal system
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
1017 mg/kg
SEX/DURATION :
female 5-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
305 mg/kg
SEX/DURATION :
female 5-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - musculoskeletal system
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
6 gm/kg
SEX/DURATION :
female 3-9 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - weaning or lactation index (e.g., # alive at weaning per # alive at day 4)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
7200 mg/kg
SEX/DURATION :
female 1-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth) Reproductive - Specific Developmental Abnormalities - Central Nervous System
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
8640 mg/kg
SEX/DURATION :
female 1-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
20 gm/kg
SEX/DURATION :
female 6-13 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
16800 mg/kg
SEX/DURATION :
male 7 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - other effects on male
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
14 gm/kg
SEX/DURATION :
male 7 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct

MUTATION DATA

TYPE OF TEST :
Cytogenetic analysis
TEST SYSTEM :
Rodent - hamster Fibroblast
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 48,337,1977 *** REVIEWS *** ACGIH TLV-TWA 5 mg/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW RREVAH Residue Reviews. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1962- Volume(issue)/page/year: 54,1,1975 TOXICOLOGY REVIEW EVHPAZ EHP, Environmental Health Perspectives. (U.S. Government Printing Office, Supt of Documents, Washington, DC 20402) No.1- 1972- Volume(issue)/page/year: 4,3,1973 TOXICOLOGY REVIEW CMTVAS Cahiers de Medecine du Travail. (Association Professionnelle Belge des Medecine du Travail, rue du Bultia, 6280 Gerpinnes, Belgium) V.1- 1963- Volume(issue)/page/year: 10(3),49,1973 TOXICOLOGY REVIEW ESKHA5 Eisei Shikenjo Hokoku. Bulletin of the Institute of Hygienic Sciences. (Kokuritsu Eisei Shikenjo Kagaku, 18-1 Bushitsu Johobu, Setagaya-ku, Tokyo 158, Japan) V.1- 1886- Volume(issue)/page/year: (93),1,1975 TOXICOLOGY REVIEW JACTDZ Journal of the American College of Toxicology. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1-12, 1982-1993. Discontinued. Volume(issue)/page/year: 4(3),267,1985 TOXICOLOGY REVIEW FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year: 13,747,1989 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD-air:TWA 5 mg/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,75,1971 OSHA PEL (Gen Indu):8H TWA 5 mg/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 5 mg/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 5 mg/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 5 mg/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 5 mg/m3 JAN 1993 OEL-DENMARK:TWA 5 mg/m3 JAN 1993 OEL-FRANCE:TWA 5 mg/m3 JAN 1993 OEL-HUNGARY:TWA 2 mg/m3;STEL 4 mg/m3;Skin JAN 1993 OEL-INDIA:TWA 5 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 5 mg/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 5 mg/m3 JAN 1993 OEL-RUSSIA:STEL 0.5 mg/m3 JAN 1993 OEL-SWEDEN:TWA 3 mg/m3;STEL 5 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 5 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 5 mg/m3;STEL 10 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO DIBUTYL PHTHALATE-air:10H TWA 5 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80248 No. of Facilities: 28100 (estimated) No. of Industries: 192 No. of Occupations: 114 No. of Employees: 258823 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80248 No. of Facilities: 31502 (estimated) No. of Industries: 199 No. of Occupations: 138 No. of Employees: 512631 (estimated) No. of Female Employees: 198249 (estimated)
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1,2-Benzenedicarboxylic acid安全信息

[ 符号 ]:

GHS08, GHS09

[ 信号词 ]:
Danger

[ 危害声明 ]:
H360Df-H400

[ 警示性声明 ]:
P201-P273-P308 + P313

[ 个人防护装备 ]:
Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
T:Toxic

[ 风险声明 (欧洲) ]:
R61;R50;R62

[ 安全声明 (欧洲) ]:
S53-S45-S61-S36/37-S16

[ 危险品运输编码 ]:
UN 3082 9/PG 3

[ WGK德国 ]:
2

[ RTECS号 ]:
TI0875000

[ 包装等级 ]:
III

[ 危险类别 ]:
9

[ 海关编码 ]:
2917341090

1,2-Benzenedicarboxylic acid合成路线

详细合成路线

1,2-Benzenedicarboxylic acid上下游产品

1,2-Benzenedicarboxylic acid上游产品

1,2-Benzenedicarboxylic acid下游产品

1,2-Benzenedicarboxylic acid制备

1. 以邻苯二甲酸酐和丁醇为原料（其质量比为1：1.5），以硫酸为催化剂（用量为苯酐和丁醇质量之和的0.3%），为了防止醇的氧化，加入总投料量0.1%～0.3%的活性炭，起吸附氧气和脱色作用。加热，在常压下进行酯化。酯化反应在耐酸搪瓷釜或不锈钢釜中进行。当固体苯酐全部溶解，说明酯化反应的第一步生成邻苯二甲酸单丁酯的反应已结束，这步反应迅速而完全。然后继续加热至反应物沸腾，进行第二步生成邻苯二甲酸二丁酯的反应，液相温度150℃左右，时间4～5h。此阶段不断蒸出醇水恒沸物，经冷凝器冷凝后进入醇水分离器。丁醇返回反应釜，下层水排除。当反应温度升到170℃，冷凝液中不再有水珠，取样测定酸值，若酸值达终点则降温至70℃左右，加入5%的纯碱溶液中和，搅拌0.5h，静置1h，分去水层。粗酯再用70～80℃的热水洗涤。然后进行真空蒸馏，回收丁醇，当压力为7.9Pa，温度为150℃左右，粗酯闪点达160℃以上，脱醇完成。再用直接蒸汽吹出低沸物，经板框压滤机压滤，即得成品。

2. 精制方法：含有游离的酸、醇和邻苯二甲酸一丁酯等杂质。精制时用水洗涤除去醇和酸，再用稀的氢氧化钠溶液洗涤除去邻苯二甲酸一丁酯，然后用无水碳酸钾或硫酸钠干燥，减压下蒸馏。

3. 烟草：56；OR，57；BU，14；FC，BU，OR，18。
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1,2-Benzenedicarboxylic acid海关

[ 海关编码 ]: 2917349000

[ 中文概述 ]:
2917349000 其他邻苯二甲酸酯。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:6.5%。普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途, 对苯二甲酸请注明4-CBA值, 对苯二甲酸请注明P-TL酸值, 对苯二甲酸请注明色度, 对苯二甲酸请注明水分

[ Summary ]:
2917349000 other esters of orthophthalic acid。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

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