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Methacrylic acid

Methacrylic acid
Methacrylic acid
Chemical Name:
Methacrylic acid
GE110;FX668F;ai3-15724;Loctite3298;CH2=C(CH3)COOH;Methacrylsαure;Metacrilic Acid;acidometacrilico;METHACRYLIC ACID;METAACRYLIC ACID
Molecular Formula:
Formula Weight:
MOL File:

Methacrylic acid Properties

Melting point:
16 °C
Boiling point:
163 °C(lit.)
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.)
Flash point:
170 °F
storage temp. 
2.0-2.2 (100g/l, H2O, 20℃)
explosive limit
Water Solubility 
9.7 g/100 mL (20 ºC)
Moisture & Light Sensitive
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 Reference
79-41-4(CAS DataBase Reference)
NIST Chemistry Reference
2-Propenoic acid, 2-methyl-(79-41-4)
EPA Substance Registry System
2-Propenoic acid, 2-methyl-(79-41-4)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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
HazardClass  8
PackingGroup  II
Hazardous Substances Data 79-41-4(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H227 Combustible liquid Flammable liquids Category 4 Warning P210, P280, P370+P378, P403+P235,P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Methacrylic acid price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 155721 Methacrylic acid contains 250 ppm MEHQ as inhibitor, 99% 79-41-4 2kg $131 2018-11-13 Buy
Sigma-Aldrich 155721 Methacrylic acid contains 250 ppm MEHQ as inhibitor, 99% 79-41-4 3kg $160 2018-11-13 Buy
TCI Chemical M0079 Methacrylic Acid (stabilized with MEHQ) >99.0%(GC) 79-41-4 25g $14 2017-12-01 Buy
TCI Chemical M0079 Methacrylic Acid (stabilized with MEHQ) >99.0%(GC) 79-41-4 500g $21 2017-12-01 Buy
Alfa Aesar 015546 Methacrylic acid, 99+%, stab. with 250ppm 4-methoxyphenol 79-41-4 3kg $137 2018-11-16 Buy

Methacrylic acid Chemical Properties,Uses,Production

Chemical Properties

colourless liquid or crystals with an unpleasant odour.


ChEBI: An alpha,beta-unsaturated monocarboxylic acid that is acrylic acid in which the hydrogen at position 2 is substituted by a methyl group.

General Description

A 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 Reactions

Soluble in water.

Reactivity Profile

Methacrylic 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].

Health Hazard

INHALATION: 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.

Purification Methods

Aqueous 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.]

Methacrylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

Methacrylic acid Suppliers

Global( 191)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32764 55
career henan chemical co
+86-371-86658258 CHINA 10011 58
Yancheng Green Chemicals Co.,Ltd
86-515-87883652 CHINA 116 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40399 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30308 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
021-67121385 China 24654 81
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820
86 (10) 60270825 China 1443 62
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 China 44192 61
Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028
+86-10-82967029 China 12613 60

View Lastest Price from Methacrylic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-20 Methacrylic acid
US $1.00 / KG 1G 98% 100KG

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