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Name: Ethyl Cellulose

CAS No: 9004-57-3

Characteristics

Ethyl Cellulose is a kind of white grains or powder,having no smell or tastes.Its 5% soliquoid shows neutral to litmus test paper.Its specific density 1.07-1.18,heat distortion point:135-155 degree centigrade,and fire point:330-360 degree centigrade.Ethyl Cellulose has good stability against light ,heat,oxygen and wetness,and is stable to chemicals.It is resistant to alkali,dilute acid and salting liquid,soluble in some organic solvents,such as alcohol,ether,ketone,ester,aromatic hydrocarbon and halohydrocarbon,etc  ,and compatible with many celluloses,resin and nearly all plasticizers.Ethyl Cellulost has low combustibility,small hydroscopicity and good electric behavior.Its thin film and plastics have good mechanical strength and flexibility in a wide range of temperature.

Technical Index

Table 1

Item	Index
	K type	N type	T type
Content of ethoxy, %	45.0~47.9	48.0~49.5	49.6~51.0
Viscosity, mPas	Conform to the requirements of table 2
Residue on ignition, %	0.4 Max
Loss on drying %	3.0 Max
Heavy metal ppm	20 Max
Arsenic ppm	3 Max
Bacterium	1000cfu/gram Max
Mold	100cfu/gram Max

Viscosity Specification

Table 2

Level	Specific range	Level	Specific range
4	3.0~5.5	45	41~49
7	6.0~8.5	55	51~60
10	9.0~12.5	70	62~74
15	13~16	90	80~90
20	18~22	100	91~110

       The viscosity can be adjusted according to the requirements of the customers.

[P] Ethyl Cellulose(EC) pharmaceutical grade_9004-57-3