Ethyl methyl cellulose

Ethyl methyl cellulose
	; R=H or CH3 or CH2CH3
Names
	Other names Methyl ethyl cellulose; Ethyl methyl ether of cellulose; E465; INS No. 465
Identifiers
CAS Number	9004-69-7;
Abbreviations	MEC
ChemSpider	none;
E number	E465 (thickeners, ...)
Properties
Chemical formula	[C6H7O2(OH)x(OCH3)y(OC2H5)z]n, z = 0.57-0.8, y = 0.2-0.4, x = 3-(x+y)
Molar mass	30000-40000 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Ethyl methyl cellulose is a thickener, vegetable gum, foaming agent and emulsifier. Its E number is E465.^[1]

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Chemically, it is a derivative of cellulose with ethyl and methyl groups attached by ether linkages. It can be prepared by treatment of cellulose with dimethyl sulfate and ethyl chloride in the presence of an alkali.^[1]

[1]
Methyl Ethyl Cellulose Archived 2018-02-05 at the Wayback Machine, monograph prepared at the 17th JECFA (1973), published in FNP 4 (1978) and in FNP 52 (1992)

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Names
R=H or CH₃ or CH₂CH₃
Other names Methyl ethyl cellulose; Ethyl methyl ether of cellulose; E465; INS No. 465
Identifiers
CAS Number	9004-69-7
Abbreviations	MEC
ChemSpider	none
E number	E465 (thickeners, ...)
Properties
Chemical formula	[C₆H₇O₂(OH)_x(OCH₃)_y(OC₂H₅)_z]_n, z = 0.57-0.8, y = 0.2-0.4, x = 3-(x+y)^[1]
Molar mass	30000-40000 g/mol^[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references