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Methacrylic acid

Methacrylic acid Suppliers list
Company Name: Xiayi Yuhao Additives Co., Ltd.
Tel: 18616206849
Email: export@xyyhzj.com
Products Intro: Product Name:METHACRYLIC ACID
CAS:79-41-4
Purity:99.90% Package:25KG;200KG Remarks:coatings, insulating materials, adhesives and ion exchange resins.
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Email: sales@mainchem.com
Products Intro: Product Name:Methacrylic acid
CAS:79-41-4
Company Name: Yancheng Green Chemicals Co.,Ltd
Tel: 86-515-87883661
Email: sales@greenchem-china.com
Products Intro: Product Name:Methacrylic Acid (MAA)
CAS:79-41-4
Purity:99.00% Package:200KG Iron/Plastic drum Remarks:coating
Company Name: career henan chemical co
Tel: +86-371-86658258
Email: sales@coreychem.com
Products Intro: Product Name:Methacrylic acid
CAS:79-41-4
Purity:98% Package:1KG;1USD
Company Name: J & K SCIENTIFIC LTD.  
Tel: 400-666-7788 +86-10-82848833
Email: jkinfo@jkchemical.com;market6@jkchemical.com
Products Intro: Product Name:Methacrylic acid, 99%, stabilized with 250 ppm MEHQ
CAS:79-41-4
Purity:99% Package:1KG;250G

Lastest Price from Methacrylic acid manufacturers

  • Methacrylic acid
  • US $1.00 / KG
  • 2018-08-21
  • CAS:79-41-4
  • Min. Order: 1G
  • Purity: 98%
  • Supply Ability: 100KG
Methacrylic acid Basic information
Product Name:Methacrylic acid
Synonyms:2-Methyl-2-propensαure;2-methyl-acrylicaci;2-methylene-propionicaci;2-methylenepropionicacid;2-Methylpropencicacid;2-Propenoicacid,2-methyl-;acidemethacrylique;acidemethacrylique(french)
CAS:79-41-4
MF:C4H6O2
MW:86.09
EINECS:201-204-4
Product Categories:fine chemical;Pyrazoles,Pyrazines
Mol File:79-41-4.mol
Methacrylic acid Structure
Methacrylic acid Chemical Properties
Melting point 16 °C
Boiling point 163 °C(lit.)
density 1.015 g/mL at 25 °C(lit.)
vapor density >3 (vs air)
vapor pressure 1 mm Hg ( 20 °C)
refractive index n20/D 1.431(lit.)
Fp 170 °F
storage temp. Indoors
form Liquid
color Clear
PH2.0-2.2 (100g/l, H2O, 20℃)
explosive limit1.6-8.7%(V)
Water Solubility 9.7 g/100 mL (20 ºC)
Sensitive Moisture & Light Sensitive
Merck 14,5941
BRN 1719937
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.
CAS DataBase Reference79-41-4(CAS DataBase Reference)
NIST Chemistry Reference2-Propenoic acid, 2-methyl-(79-41-4)
EPA Substance Registry System2-Propenoic acid, 2-methyl-(79-41-4)
Safety Information
Hazard Codes C
Risk Statements 21/22-35-37-20/21/22
Safety Statements 26-36/37/39-45
RIDADR UN 2531 8/PG 2
WGK Germany 1
RTECS OZ2975000
Autoignition Temperature752 °F
TSCA Yes
HS Code 2916 13 00
HazardClass 8
PackingGroup II
Hazardous Substances Data79-41-4(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 1320 mg/kg
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
Methacrylic acid Usage And Synthesis
Chemical Propertiescolourless liquid or crystals with an unpleasant odour.
Chemical PropertiesMethacrylic acid is a colorless liquid.
UsesMonomer for large-volume resins and polymers, organic synthesis. Many of the polymers are based on esters of the acid, as the methyl, butyl, or isobutyl esters.
DefinitionChEBI: An alpha,beta-unsaturated monocarboxylic acid that is acrylic acid in which the hydrogen at position 2 is substituted by a methyl group.
General DescriptionA clear colorless liquid (or low-melting solid) with a pungent odor. Corrosive to metals and tissue. Flash point 170°F. Melting point 61°F. May polymerize exothermically if heated or contaminated. If the polymerization takes place inside a container, the container may rupture violently. Less dense than water. Vapors heavier than air. Used to make plastics.
Air & Water ReactionsSoluble in water.
Reactivity ProfileMethacrylic acid reacts with strong oxidizing agents. Presents a storage hazard: violent exothermic polymerizations leading to explosion can occur spontaneously, particularly at low inhibitor or stabilizer concentrations [Anon., CISHC Chem. Safety Summ., 1979, 50, p. 34; Bond, J., Loss Prev. Bull., 1991, 101, p. 1].
HazardToxic material. Strong irritant to eyes and skin. Questionable carcinogen.
Health HazardINHALATION: Severe irritation to respiratory tract. EYES: Short contact can cause severe damage. SKIN: Causes severe irritation and burns. Ingestion: High hazard - may cause death or permanent injury on short exposure to small quantities. OTHER: May affect blood pressure temporarily.
Safety ProfilePoison by intraperitoneal route. Moderately toxic by ingestion and skin contact. Corrosive to skin, eyes, and mucous membranes. Mutation data reported. Flammable when exposed to heat, flame, or oxidizers. A storage hazard; exothermic polymerization may occur spontaneously. To fight fire, use alcohol foam, spray, mist, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.
Potential ExposureMethacrylic acid is used in preparation of methacrylates and carboxylated polymers; in the production of the material or its alkyl esters, as monomers or comonomers for synthetic resins for the production of plastic sheets, moldings, and fibers.
First aidIf this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. If victim is conscious, administer water or milk. Do not induce vomiting. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.
ShippingUN2531 Methacrylic acid, stabilized, Hazard class: 8; Labels: 8-Corrosive material.
Purification MethodsAqueous methacrylic acid (90%) is saturated with NaCl (to remove the bulk of the water), then the organic phase is dried with CaCl2 and distilled under vacuum. Polymerisation inhibitors should be added to the distillate and include 0.25% p-methoxyphenol, 0.1% hydroquinone, or 0.05% N,N'-diphenyl-p-phenylenediamine. [Beilstein 2 IV 1518.]
IncompatibilitiesVapor may form explosive mixture with air. A reducing agent; incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Aqueous solution is strongly acidic: incompatible with strong acids; caustics, ammonia, amines, isocyanates, alkylene oxides; epichlorohydrin. Will polymerize readily from heating above 59F/15C, or due to the presence of light, oxidizers (e.g., peroxides); or in the presence of traces of hydrochloric acid, with fire or explosion hazard. Attacks metals. Note: Typically contains 100 ppm of monomethyl ether hydroquinone (150-76-5) as an inhibitor to prevent polymerization
Waste DisposalDissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.
Tag:Methacrylic acid(79-41-4) Related Product Information
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