甲基丙烯酸

甲基丙烯酸用途

【用途一】
用于制造涂料、绝缘材料、粘合剂和离子交换树脂
【用途二】
用作有机试剂
【用途三】
重要的有机化工原料和聚合物的中间体。其最重要的衍生产品甲基丙烯酸甲酯生产的有机玻璃可用于飞机和民用建筑的窗户，也可加工成纽扣，太阳滤光镜和汽车灯透镜等；生产的涂料具有优越的悬浮、流变和耐久特性；制成的粘结剂可用于金属、皮革、塑料和建筑材料的粘合；甲基丙烯酸酯聚合物乳液用作织物整理剂和抗静电剂。另外，甲基丙烯酸还可作为合成橡胶的原料。
【用途四】
制造树脂和塑料、高分子聚合物，制造酯类。

甲基丙烯酸名称

[ CAS 号 ]:
79-41-4

[ 中文名 ]:
2-甲基丙烯酸

[ 英文名 ]:
Methacrylic acid

[中文别名 ]:

[英文别名 ]:

Loctite3298
2-methylprop-2-enoic acid
FX668F
a-Methylacrylic Acid
Methacrylic acid
acidometacrilico
2-Propenoic acid, 2-methyl-
CH2=C(CH3)COOH
METAACRYLIC ACID
EINECS 201-204-4

甲基丙烯酸物理化学性质

[ 密度 ]:
1.0±0.1 g/cm3

[ 沸点 ]:
160.5±0.0 °C at 760 mmHg

[ 熔点 ]:
16 °C

[ 分子式 ]:
C₄H₆O₂

[ 分子量 ]:
86.089

[ 闪点 ]:
76.7±0.0 °C

[ 精确质量 ]:
86.036781

[ PSA ]:
37.30000

[ LogP ]:
0.83

[ 外观性状 ]:
无色液体或晶体带有一种令人不愉快的气味

[ 蒸汽密度 ]:
>3 (vs air)

[ 蒸汽压 ]:
1.2±0.6 mmHg at 25°C

[ 折射率 ]:
1.430

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、碱类分开存放

[ 稳定性 ]:
May be stabilized by the addition of MEHQ (Hydroquinone methyl ether, ca. 250 ppm) or hydroquinone. In the absence of a stabilizer this material will readily polymerize. Combustible. Incompatible with strong oxidizing agents, hydrochloric acid.

[ 水溶解性 ]:
9.7 g/100 mL (20 ºC)

甲基丙烯酸MSDS

详细MSDS(安全技术说明书)

甲基丙烯酸毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: OZ2975000

CHEMICAL NAME :: Methacrylic acid

CAS REGISTRY NUMBER :: 79-41-4

BEILSTEIN REFERENCE NO. :: 1719937

LAST UPDATED :: 199712

DATA ITEMS CITED :: 34

MOLECULAR FORMULA :: C4-H6-O2

MOLECULAR WEIGHT :: 86.10

WISWESSER LINE NOTATION :: QVY1&U1

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 :: 1060 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 - rat

DOSE/DURATION :: 1600 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 :: 1250 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 :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 48 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 :: 1250 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 95200 nL/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 - rabbit

DOSE/DURATION :: 1200 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 :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 500 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 :: Administration onto the skin

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 1 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 :: 910 mg/kg/26W-I

TOXIC EFFECTS :: Behavioral - alteration of classical conditioning

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 221 mg/m3/24H/17W-C

TOXIC EFFECTS :: Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 221 mg/m3/24H/17W-C

TOXIC EFFECTS :: Behavioral - alteration of classical conditioning

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 910 mg/kg/26W-I

TOXIC EFFECTS :: Liver - liver function tests impaired Nutritional and Gross Metabolic - metabolic acidosis

MUTATION DATA

TYPE OF TEST :: DNA adduct

TEST SYSTEM :: Bacteria - Escherichia coli

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 89,95,1981 *** REVIEWS *** ACGIH TLV-TWA 70 mg/m3 (20 ppm) 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 EVHPAZ EHP, Environmental Health Perspectives. (U.S. Government Printing Office, Supt of Documents, Washington, DC 20402) No.1- 1972- Volume(issue)/page/year: 11,141,1975 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-BELGIUM:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-DENMARK:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-FRANCE:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-GERMANY:TWA 50 ppm (210 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-RUSSIA:STEL 101 mg/m3;Skin JAN 1993 OEL-SWEDEN:TWA 20 ppm (70 mg/m3);STEL 30 ppm (100 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 20 ppm (70 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 20 ppm (70 mg/m3);STEL 40 ppm (140 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 METHACRYLIC ACID-air:10H TWA 20 ppm (Sk) 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 - M3304 No. of Facilities: 1529 (estimated) No. of Industries: 12 No. of Occupations: 31 No. of Employees: 18977 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M3304 No. of Facilities: 10110 (estimated) No. of Industries: 109 No. of Occupations: 75 No. of Employees: 145414 (estimated) No. of Female Employees: 46453 (estimated)

甲基丙烯酸安全信息

[ 符号 ]:

GHS05, GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H302 + H332-H311-H314-H335

[ 警示性声明 ]:
P261-P280-P301 + P312 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338

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

[ 危害码 (欧洲) ]:
C:Corrosive

[ 风险声明 (欧洲) ]:
R21/22;R35

[ 安全声明 (欧洲) ]:
S26-S36/37/39-S45

[ 危险品运输编码 ]:
UN 2531 8/PG 2

[ WGK德国 ]:
1

[ RTECS号 ]:
OZ2975000

[ 包装等级 ]:
II

[ 危险类别 ]:
8

[ 海关编码 ]:
2916130010

甲基丙烯酸合成路线

详细合成路线

甲基丙烯酸上下游产品

甲基丙烯酸上游产品

甲基丙烯酸下游产品

甲基丙烯酸制备

甲基丙烯酸的工业生产方法主要有两种，即丙酮氰醇法是异丁烯（叔丁醇）氧化法。

1.丙酮氰醇法丙酮和氢氰酸在碱催化剂存在下，反应生成丙酮氰醇，再与浓硫酸反应生成甲基丙烯酰胺硫酸盐，然后经水解即可生成甲基丙烯酸。生产中要求丙酮氰醇和硫酸中不含水分，否则会产生丙酮或α-羟基异丁酸甲酯留在产品中，影响产品质量。用丙酮氰醇法生产甲基丙烯酸，每吨产品消耗氰化钠（>87%）898kg、丙酮（98.5%）1100kg、硫酸（发烟）4080kg。

2.异丁烯（叔丁醇）氧化法异丁烯经两步氧化，第一步生成甲基丙烯醛，第二步生成甲基丙烯酸，然后经精馏得到合格产品。

3.甲基丙烯腈水解法以异丁烯为原料，经氨氧、水解而得。4.异丁烷氧化法经氧化制得甲基丙烯醛，再经氧化而得。

4.异丁烷氧化法　经氧化制得甲基丙烯醛，再经氧化而得。

甲基丙烯酸海关

[ 海关编码 ]: 2916130010

[ 中文概述 ]:
HS: 2916130010. 甲基丙烯酸. 增值税率:17.0%. 退税率:13.0%. 监管条件:AB(入境货物通关单,出境货物通关单). 最低关税:6.5%. 普通关税:80.0%

[ 申报要素 ]: 品名, 成分含量, 用途, 丙烯酸、丙烯酸盐或酯应报明包装

[ 监管条件 ]: A.入境货物通关单 B.出境货物通关单

[ 检验检疫 ]: M.进口商品检验 N.出口商品检验

[ Summary ]:
HS: 2916130010. methacrylic acid. VAT:17.0%. tax rebate rate:13.0%. supervision conditions:ab(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tarrif:6.5%. general tariff:80.0%

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