 Home > Encyclopedia > Methyl chloride

Methyl chloride

Methyl chloride structure

CAS No:
74-87-3
Formula:
CH3Cl
Chemical Name:
Methyl chloride
Synonyms:
Methane,chloro-;Chloromethane;Artic;Methyl chloride;Monochloromethane;R 40;HCC 40;R 40 (refrigerant);F 40;Chloromethane dimer;16786-44-0;1173018-35-3;1474045-09-4;1474045-10-7;1474045-11-8;1596379-05-3
Categories:
Organic Chemistry > Hydrocarbons and Derivatives

Description

Methyl chloride,CH3CI, is a flammable, narcotic,colorless compressed gas or liquid with a faintly sweet odor.Slightly soluble in water and soluble in alcohol this gas boils at -23.7℃ and freezes at -97.6℃ and is used as a refrigerant, catalyst carrier, and methylating agent. Also known as chloromethane. Methyl chloride is a colorless gas with a faint, sweet odor which is not noticeable at dangerous concentrations. The odor threshold is 10 ppm. Shipped as a liquefied compressed gas.

Methyl chloride Basic Attributes

Molecular Weight：

50.49

Exact Mass：

50.49

EC Number：

200-817-4

HScode：

2903110000

Characteristics

PSA：

XLogP3：

0.97

Appearance：

Methyl chloride appears as a colorless gas with a faint sweet odor. Shipped as a liquid under its vapor pressure. A leak may either be liquid or vapor. Contact with the liquid may cause frostbite by evaporative cooling. Easily ignited. Vapors heavier than air. Can asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. Used to make other chemicals and as a herbicide.

Density：

0.911 g/cm³ @ Temp: 25 °C

Melting Point：

-97 °C

Boiling Point：

-23.7 °C

Flash Point：

<-30 °F

Refractive Index：

1.331

Water Solubility：

water: soluble 5.32g/L at 25°C

Storage Conditions：

2-8°C

Vapor Pressure：

3796 mm Hg ( 20 °C)

Vapor Density：

1.74 (vs air)

Toxicity：

Inhalation-rat LC50: 5300 mg/m3/4 hours; oral-rat LD50: 1800 mg/kg

Flammability characteristics：

Open flame, flammable by heat; burning produces toxic chloride fumes

Explosive limit：

19%

Odor：

Faint sweet ethereal odor

Taste：

Sweet taste

Safety Information

Hazard category：

2.1

Transport codes：

UN 1993 3/PG 1

wgk germany：

hazard class code：

12-40-48/20-67-66-22-19-38-23/25-11-39/23/24/25-23/24/25-62-63

safety instructions：

9-16-33-29-36-24-45-7-36/37

RTECS Number：

PA6300000

Marks：

F+,Xn,T,F

Storage features：

The warehouse is ventilated, low temperature and dry; lightly loaded and unloaded; stored separately from oxygen, air and other fuel gas cylinders

Explosive characteristics：

Open flame mixed with air, can be explosive when heated

Stability/Shelf Life：

Stable. May react violently or explosively with interhalogens, magnesium, zinc, potassium, sodium or their alloys. Incompatible with natural rubber and neoprene composites, but does not attack PVA. Highly flammable. May decompose upon exposure to moist air or water.

Precautionary statement(s)：

P210-P281

Hazard Statements：

H225-H315-H351-H361fd

Toxicity

Toxicity class：

moderately toxic

Methyl chloride Use and Manufacturing

Methods of Manufacturing

There are many production methods of methyl chloride, including methane chlorination, methanol chlorination, photochlorination, oxychlorination, etc. Some industrial processes also produce by-products of methyl chloride, such as the production process of trichlorfon, trichloroacetaldehyde, chlorination of natural gas to produce carbon tetrachloride, and phosphorus amine. 1. Methane thermal chlorination method is formed by direct chlorination of methane, and then separated from the various chlorides produced. The production process of this method is similar to methylene chloride production. Under the reaction condition of 420℃, when the ratio is methane:chlorine=10-6:1, the main product is methyl chloride. 2. Methanol chlorination method is derived from the action of methanol and hydrogen chloride. This method is divided into liquid phase method and gas phase method. (1) Liquid-phase method methanol gas and hydrochloric acid are reacted in zinc chloride aqueous solution at 130-140°C to form methyl chloride, which is then washed, cooled, compressed and condensed. (2) The gas phase method reacts methanol and hydrogen chloride gas through a solid alumina catalyst at 350°C. In addition, Cao De uses methanol and chlorine as raw materials to produce methyl chloride, which has improved the high-temperature gas phase method and has been industrialized. 3. Methane oxychlorination method It uses continuous circulation of molten inorganic salts as a catalyst to produce chloromethane through catalytic nitridation, oxidative chlorination and dehydrochlorination processes. The yield of methyl chloride is 75%-90% in terms of methane, and about 400kg of methane is consumed per ton of methyl chloride.

Uses

manufacture of silicones, tetramethyleads.Solvent catalyst for butyl rubber.Has been used as a refrigerant.

Computed Properties

Molecular Weight:50.49
XLogP3:0.8
Exact Mass:49.9923278
Monoisotopic Mass:49.9923278
Heavy Atom Count:2
Complexity:2
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Alumina

Carbon tetrachloride

Zinc chloride

Hydrochloric acid

Downstream Products

Ethanol

Chlorotrimethylsilane

Trichloromethylsilane

Hydroxypropyl methyl cellulose

Cefdinir

Recommended Suppliers of Methyl chloride

SHANDONG LOOK CHEMICAL CO.,LTD Contact Supplier

CN
5 YRS

Business licensed Certified factory

Manufactory Supplier of Agrochemicals,Daily Chemicals,Catalysts & Chemical Auxiliary Agents,Extract,Inorganic Chemicals,Organic Intermediate,Pigment & Dyestuff,Polymer,Flavour & Fragrance,Basic Organic Chemicals,Pharmaceutical

Methyl Chloride 74-87-3

CAS No.: 74-87-3

Inquiry
Cosmo Chemistry India Contact Supplier

IN
5 YRS

Business licensed Verified Supplier

Trader Supplier of Stearate,Pine Oil,Talc,Magnesium Chloride,Ferric Chloride Liquid/Anhydrous,Calcium Chloride,Feldspar

METHYL CHLORIDE.

CAS No.: 74-87-3

Inquiry
Chengdu Xenon Tritium Technology Co.,Ltd. Contact Supplier

CN
1 YR

Business licensed

Trader Supplier of Industrial Gases

Methyl Chloride Supplier CH3Cl Gas

CAS No.: 74-87-3

Grade: Industrial Grade

Content: 99.5%

Inquiry