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Quick Details

  • Place of Origin: Shandong, China (Mainland)
  • Brand Name: YUDA
  • Model Number: For water treatment chitosan flocculant
  • Item: For water treatment chitosan flocculant
  • Color: white/Light yellow
  • Application: Food/Agriculture/Industry/Comestic/Medichine
  • Apperance: Powder/Flake
  • DAC: 80,95,90,95%
  • Ash: 1,2,3%
  • Specification: Acid/Water soluble
  • Viscosity: 10-1500

Packaging & Delivery

Packaging Details 25kg drums
Delivery Time two weeks
Product Description

For water treatment chitosan flocculant



Source: Crab shell or Shrimp shell

Ash: <1%, <2%, <3%

Particle Size: Flake or powder 20mesh,40mesh,60 mesh 

Moisture: <12% 

Heavy Metal: <10ppm

Total plate count<1000cfu/g

Yeast/Mold: <100cfu/g

pathogenic bacterium: Negative 



Water soluble chitosan 

DAC(Degree of acetylation):  DAC>85%, DAC>90%,DAC>95%

Ash%: <1

PH: 3-6 

Particle Size: 80 mesh

Viscosity: 10-30cps

Moisture: <10% 


Bulk density: >0.3g/ml

Heavy Metal: <10ppm

Total plate count: <1000cfu/g

Yeast/Mold: <100cfu/g

pathogenic bacterium: Negative 




Acid soluble chitosan -- Industrial grade, food grade, agriculture grade

DAC(Degree of acetylation): DAC>80%, DAC>85%, DAC>90%, DAC>95%

Ash%: <1  <2  <3


Particle Size: 80 mesh

Viscosity: 20-1500cps

Moisture: <10% 


Bulk density: 0.2g/ml--0.9g/ml

Heavy Metal: <10ppm

Total plate count<1000cfu/g

Yeast/Mold: <100cfu/g

pathogenic bacterium: Negative 

Hydroxypropyl chitosan--- food grade, comestic grade 

Degree of substitution: >95%  >98%

Ash%: <1

PH: 6-8 

Particle Size: >30mesh

Moisture: <10% 






Carboxymthyl chitosan--- agriculture grade, food grade

DAC(Degree of acetylation):  DAC>85% DAC>90%

Degree of substitution: >60%, >70% >80% >90%

Ash%: <1

PH: 8-10 

Particle Size: 60 mesh  80mesh

Viscosity: <100cps,  <50cps

Moisture: <10% 


Bulk density: >0.3g/ml

Heavy Metal: <10ppm

Total plate count<1000cfu/g

Yeast/Mold: <100cfu/g

pathogenic bacterium: Negative 


Packaging & Shipping


Packing Conditions

• Outside Packing

Hard cardboard-drum

• Inner Packing

Two thick waterproof plastic-bags inside

• Bulk/Industrial pakcing

20kg or 25kg/drum

-20kgs/drum: 20kgs N/W; 23kgs G/W

-25kgs/drum: 25kgs N/W, 28kgs G/W

• Any packing way according to customer’s requests: aluminum foil bag, carton box, OEM & ODM service etc.

Shippping Methods

• By Air

Quantity 50KGS above Recommended

• By International Express DHL, FEDEX, EMS

Quantity less than 100KGS, high value products & 

sample order Recommended

• By Sea

Quantity 300KGS above Recommended

Price Terms

• FOB, CNF, CFR, DDU etc

Payment Terms

• By T/T; L/C; West union/Paypal(Only for Sample order) 


Our Services


-----20year experience in chitosan /chitin industry.

-----We can produce products according to your requirements.

-----Many practical applications with customers,Industry, Agriculture,Food,Medicine.

-----GMP standard production line and ISO certificates.

Company Information


Qingdao Yuda Century is A professional company which specilized in Bio-technology products. We located 

at Qingdao city, ShanDong province. Qingdao as one of the most important and biggest seaport in north 

of china, which provides us the most benefits to delivery our high quality products and our service worldwide.

As we develop speedly these years, now we have been one company with the main products with high technology: 

Conjugated linoleic acid, Chitin, Chitosan, Chitosan oligosaccharide, Spirulina , Chlorella ,Fish oil, Krill oil Etc. 

We have been dedicated in OEM and ODM for many years, welcome to consult with us at your convenience!



Q: Could you recommends chitosan Plant praying to prevent diseases and insect pests?

A: You can use chitosan oligosaccharides , it is water soluble and easy use.Molecular weight 2000Da. 

Or you can choose acid soluble chitosan ( it is cheaper).


Q: I want use chitosan in waste water treatment, which size we can use?

A: We recommend acid soluble chitosan (with Viscosity 80cps----2000cps),you can make test according to the 

quality of your water, we can provide samples.


Q: Do you have high density chitosan?

A: Yes, we can provide bulk density from 0.2g/ml to 0.9g/ml.


Q: what is your source of material?

A: From Alaska Crab shell and white shrimp of south america.


Q:what is the molecular weight of your chitosan oligosaccharides      

A: 1000-3000Dalton, we can produce according to your requirements.



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