ChemicalBook
Chinese Japanese Germany Korea

MESITYL OXIDE

Description References
MESITYL OXIDE
MESITYL OXIDE structure
CAS No.
141-79-7
Chemical Name:
MESITYL OXIDE
Synonyms
mesityl;FEMA 3368;Mesityloxid;Mesity oxide;Mesityloxyde;MESITYL OXIDE;Mesityloxide 0;femanumber3368;mesityl oxnide;MesitylOxide91%
CBNumber:
CB2139085
Molecular Formula:
C6H10O
Formula Weight:
98.14
MOL File:
141-79-7.mol

MESITYL OXIDE Properties

Melting point:
−53 °C(lit.)
Boiling point:
129 °C(lit.)
Density 
0.858 g/mL at 25 °C(lit.)
vapor pressure 
10.5 hPa (20 °C)
FEMA 
3368 | 4-METHYL-3-PENTEN-2-ONE
refractive index 
n20/D 1.442(lit.)
Flash point:
87 °F
storage temp. 
Store below +30°C.
solubility 
30g/l
form 
Liquid, Free Of Suspended Matter
color 
Clear
Odor
Strong; peppermint; honeylike.
explosive limit
1.4-10.1%(V)
Water Solubility 
28 G/L (20 ºC)
JECFA Number
1131
Merck 
14,5908
BRN 
1361550
Henry's Law Constant
(x 10-6 atm?m3/mol): 4.01 at 20 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits
TLV-TWA 60 mg/m3 (15 ppm) (ACGIH), 10-h TWA 40 mg/m3 (10 ppm) (NIOSH); STEL 100 mg/m3 (25 ppm); IDLH 5000 ppm.
CAS DataBase Reference
141-79-7(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)
4-METHYL-3-PENTEN-2-ONE
EWG's Food Scores
2
FDA UNII
77LAC84669
NIST Chemistry Reference
3-Penten-2-one, 4-methyl-(141-79-7)
EPA Substance Registry System
Mesityl oxide (141-79-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS06,GHS07,GHS08
Signal word  Danger
Hazard statements  H302-H336-H361-H312-H332-H226-H302+H312-H315-H319-H331-H335
Precautionary statements  P201-P202-P233-P240-P241+P242+P243-P264-P270-P271-P301+P312+P330-P303+P361+P353-P304+P340+P311-P305+P351+P338+P337+P313-P308+P313-P405-P261-P280-P305+P351+P338-P311-P210-P304+P340+P312-P370+P378-P403+P233-P304+P340-P501a
Hazard Codes  Xn
Risk Statements  10-20/21/22-36/37/38
Safety Statements  25
RIDADR  UN 1229 3/PG 3
WGK Germany  1
RTECS  SB4200000
Autoignition Temperature 344 °C
TSCA  Yes
HS Code  2914 19 90
HazardClass  3
PackingGroup  III
Toxicity LD50 in mice (mg/kg): 710 ±85 intragastric; LC50 in mice (2 hr), rats (4 hr) (mg/m3): 10000 ±270, 9000 ±600 (Ismerov)
NFPA 704
3
3 1

MESITYL OXIDE price More Price(20)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.05791 Mesityl oxide for synthesis 141-79-7 100 mL $24.7 2021-03-22 Buy
Sigma-Aldrich 281832 Mesityl oxide technical grade, 90% 141-79-7 100g $41 2021-03-22 Buy
Sigma-Aldrich 8.05791 Mesityl oxide for synthesis 141-79-7 1 L $70.3 2021-03-22 Buy
Sigma-Aldrich 49722 4-Methyl-3-penten-2-one analytical standard 141-79-7 1ml $70.4 2021-03-22 Buy
TCI Chemical M0069 4-Methyl-3-penten-2-one >95.0%(GC) 141-79-7 25mL $23 2021-03-22 Buy

MESITYL OXIDE Chemical Properties,Uses,Production

Description

Mesity oxide is a tri-functional intermediate of considerable utility in the synthesis of a number of different types of organic compounds, such as mesityl oxide can be hydrogenated to methyl isobutyl ketone and other flavor ingredients in foods, such as 4- methyl-pentanone. Mesityl oxide can be used as a solvent for resins, gums, nitrocellulose, oils, lacquers, and inks. It is also used as an insect repellant and used in ore flotation.

References

[1] Pradyot Patnaik, A Comprehensive Guide to the Hazardous Properties of Chemical Substances, 3rd Edition, 2007
[2] Klaus Weissermel, and Hans-Jürgen Arpe, Industrial Organic Chemistry, 3rd Edition, 1997
[3] George A. Burdock, Fenaroli’s Handbook of Flavor Ingredients, 4th Edition, 2001

Description

The commercial grade of 4-methyl-3-penten-2-one exhibits an unpleasant odor. The pure material has a pleasant honey-like odor. This substance may be prepared by reacting acetone or diacetone alcohol with iodine or other dehydrating agent; by condensation of acetone over sulfonated polystyrene-divinylbenzene resin used as an ion exchange catalyst.

Chemical Properties

The commercial grade of 4-methyl-3-penten-2-one exhibits an unpleasant grassy-green or pungent, acrylic odor. The pure material has a pleasant, honey-like odor.

Chemical Properties

Mesityl oxide is a clear, pale yellow, or colorless liquid with a strong peppermint odor. The odor threshold is 0.05 ppm.

Chemical Properties

CLEAR LIGHT YELLOW LIQUID

Physical properties

Clear, pale yellow liquid with a strong, peppermint, or honey-like odor. Experimentally determined detection and recognition odor threshold concentrations were 70 μg/m3 (17 ppbv) and 200 μg/m3 (50 ppbv), respectively (Hellman and Small, 1974).

Occurrence

Reported found in orange juice, baked potato, bell pepper, sauerkraut, tomato, crisp bread, parmesan cheese, milk, chicken fat, hop oil, rum, coffee, tea, peanut, passion fruit, mushroom, tamarind, prickly pear, buckwheat, basil, elder flower, rosemary, shrimp, nectarine, clam and maté

Uses

Mesityl oxide is used as a solvent for resins,gums, nitrocellulose, oils, lacquers, and inks;as an insect repellant; and in ore flotation..

Uses

Solvent; chemical intermediate

Uses

Solvent for nitrocellulose, many gums and resins, particularly vinyl resins. In lacquers, varnishes and enamels. In making methyl isobutyl ketone.

Preparation

By reacting acetone or diacetone alcohol with iodine or other dehydrating agent; by condensation of acetone over sulfonated polystyrene-divinylbenzene resin used as an ion exchange catalyst.

Synthesis Reference(s)

Tetrahedron Letters, 27, p. 3733, 1986 DOI: 10.1016/S0040-4039(00)83866-6

General Description

A colorless, oily liquid with a pungent honey-like odor. Flash point 87°F. Less dense than water and slightly soluble in water. Vapors heavier than air. Used in paint removers, as a solvent for plastics, and as an insect repellent.

Air & Water Reactions

Highly flammable. Slightly soluble in water

Reactivity Profile

Mixing MESITYL OXIDE in equal molar proportions with any of the following substances in a closed container caused the temperature and pressure to increase: 2-aminoethanol, chlorosulfonic acid, ethylene diamine, nitric acid, oleum, or sulfuric acid [NFPA 1991].

Hazard

Flammable, moderate fire risk. Toxic by ingestion, inhalation, and skin absorption. Eye and upper respiratory tract irritant, central nervous system impairment.

Health Hazard

Inhalation causes irritation of nose and throat, headache, dizziness, difficult breathing. Contact with liquid or concentrated vapor causes severe eye irritation. Liquid irritates skin. Ingestion causes irritation of mouth and stomach.

Health Hazard

Mesityl oxide is a moderately toxic substance, more toxic than the saturated ketones.Inhalation of its vapors can cause irritationto the eyes, skin, and mucous membranes. Inhumans, the irritation effect on the eyes andnose are reported to be 25 and 50 ppm. Athigh concentrations narcosis can result. Otherthan narcosis, prolonged exposure to highconcentrations can injure the lungs, liver, and kidney. A concentration of 2500 ppm waslethal to rats.
LD50 value, oral (rats): 1120 mg/kg.

Fire Hazard

Behavior in Fire: Vapor is heavier than air and may travel a considerable distance to a source of ignition and flash back.

Chemical Reactivity

Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion. Mildly toxic by inhalation and skin contact. Human systemic effects by inhalation: conjunctiva irritation. This compound is highly irritating to all tissues on contact; its vapors also are irritating. High concentrations are narcotic. It is readdy absorbed through intact skin. Single exposures tend to indicate that ths ketone has greater acute and narcotic action than isophorone. It can have harmful effects upon the hdneys and liver, and may damage the eyes and lungs to a serious degree. Prolonged exposure can injure liver, kidneys, and lungs. It can cause opaque cornea, keratoconus, and extensive necrosis of cornea. Dangerous fire hazard when exposed to heat, sparks, or flame; can react with oxidzing materials. Reacts violently with 2-amino ethanol, chlorosulfonic acid, ethylene diamine, HNO3, oleum, H2SO4. An insect repellent. To fight fire, use alcohol foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also KETONES.

Potential Exposure

Mesityl oxide is used as a solvent for cellulose esters and ethers and other resins in lacquers and inks. It is used in paint and varnish removers and as an insect repellent

Shipping

UN1229 Mesitly oxide, Hazard Class: 3; Labels: 3-Flammable liquid.

Purification Methods

Purify it by distillation, preferably in a vacuum or via the semicarbazone (m 165o) which is decomposed to pure ketone. The 2,4-dinitrophenylhydrazone (m 205-206o) crystallises from EtOH. [Johnson J Am Chem Soc 73 5888 1951, Johnson J Am Chem Soc 75 2720 1953, Erskine & Waight J Chem Soc 3425 1960, Beilstein 1 H 736, 1 I 382, 1 II 793, 1 III 2995, 1 IV 3471.]

Incompatibilities

May form explosive mixture with air. May be able to form explosive peroxides. May react violently with nitric acid; aliphatic amines; alkanolamines, 2- aminoethanol, ethylene diamine; chlorosulfonic acid; oleum (fuming sulfuric acid). Not compatible with oxidizers, strong acids; strong bases; reducing agents; halogens. Dissolves some forms of plastics, resins and rubber. Attacks copper.

Waste Disposal

Dissolve 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.

MESITYL OXIDE Preparation Products And Raw materials

Raw materials

Preparation Products


MESITYL OXIDE Suppliers

Global( 187)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shanxi Naipu Import and Export Co.,Ltd
+8613734021967
kaia@neputrading.com CHINA 1010 58
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 21032 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com CHINA 1365 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8882 55
Guangzhou PI PI Biotech Inc
+8618371201331
020-81716319 sales@pipitech.com;87478684@qq.com China 3245 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29961 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293
+86 0531-67809011 sales@sdzschem.com CHINA 2858 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Henan Xiangtong Chemical Co., Ltd.
86-371-61312303
86-371-86017988 cathy@hnxtchem.com CHINA 293 58

Related articles


View Lastest Price from MESITYL OXIDE manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-06-08 4-Methyl-2-pentanone
141-79-7
US $10.00-10.00 / ASSAYS 10ASSAYS 99% 1000kg/month Shanxi Naipu Import and Export Co.,Ltd
2020-06-29 Mesityl oxide
141-79-7
US $887.00 / KG 1KG 98% 1T Shaanxi Dideu Medichem Co. Ltd
2019-07-06 MESITYL OXIDE
141-79-7
US $1.00 / kg 1kg 95%-99% as request career henan chemical co

MESITYL OXIDE Spectrum


141-79-7(MESITYL OXIDE)Related Search:


Copyright 2017 © ChemicalBook. All rights reserved