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79-41-4

79-41-4 structure
79-41-4 structure
Name methacrylic acid
Synonyms 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
2-methylpropenoic acid
2-Methylene propionic acid
2-Propenoic acid, 2-methyl-, endo-
2-methylacrylic acid
acidemethacrylique
(methyl)acrylic acid
GE110
methylcrotonic acid
MFCD00002651
Density 1.0±0.1 g/cm3
Boiling Point 160.5±0.0 °C at 760 mmHg
Melting Point 16 °C
Molecular Formula C4H6O2
Molecular Weight 86.089
Flash Point 76.7±0.0 °C
Exact Mass 86.036781
PSA 37.30000
LogP 0.83
Vapour density >3 (vs air)
Vapour Pressure 1.2±0.6 mmHg at 25°C
Index of Refraction 1.430
Stability 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.
Water Solubility 9.7 g/100 mL (20 ºC)

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)
Symbol GHS05 GHS06
GHS05, GHS06
Signal Word Danger
Hazard Statements H302 + H332-H311-H314-H335
Precautionary Statements P261-P280-P301 + P312 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338
Personal Protective Equipment Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes C:Corrosive
Risk Phrases R21/22;R35
Safety Phrases S26-S36/37/39-S45
RIDADR UN 2531 8/PG 2
WGK Germany 1
RTECS OZ2975000
Packaging Group II
Hazard Class 8
HS Code 2916130010
HS Code 2916130010
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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title: CAS No. 79-41-4 | Chemsrc address: https://www.chemsrc.com/en/baike/951455.html

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