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Specification of Carboxyl-methyl chitosan

 Hope Page Dalwoo-chitoSan

 

TEST

SPECIFICATION

RESULT

REMARK

Appearance:

White or Yellow, Powder

Pass

Gardner No.Max.2

Density

Pass 25 - 200 Mesh

Pass

Sieve No 25-100 pass ration(Fisher)

Moisture Content

Less than 10%

Pass

Dry 3hr at 105 deg. C.

Residue on Ignition

Less than 0.5%

Pass

Ashing Method

Protein Content

Less than 0.3%

Pass

Kjeldal method

Degree of Deacetylatione

70 - 100%

86%

Colloidal method

Viscosity

Less than 5cps

2.3(1%sol.)

0.5% or 1% Chitosan in 1% distilled water by stirring 1hr. Measure with Brookfield viscometer (Model DV-II+) LV Spindle #0, 30 deg.C 

Insolubles

Less than 1% insolubility

0.5%

Dissolved 10g of chitosan in 50ml of 1% distilled water chitosan solution. Chitosan solution to which added 200 ml distilled water was stirred 1hr. Filtration with a GF/C and washed with 20ml acetone. Dry residue at 105 deg. C

Heavy metals(As)

Less than 10 ppm

1.0ppm

ICP Analysis

Heavy metals(Pb)

Less than 10 ppm

1.0ppm

ICP Analysis

pH

7 - 9

7.8

Dispersed 1g of chitosan in 99ml of distilled water after stirred 15 min.

Odor

No taste and smell

 

 

Packing

10kgs/20kgs net each

 

Corrugated carton box with PE liner

Dalwoo supply first quality bulk chitin, chitosan and chitosan oligomer in various grades at competitive price. Please contact us for further infomation.

Chitin

Food grade chitosan

Pharmaceutical grade chitosan

Technical grade chitosan

Chitosan Oligomer

Liquid Chitosan(Food Grade)

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Last updated April 12, 1999

Maintained by Dalwoo Corporation

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