Calcium alginate is the calcium salt of alginic acid,a natural polyuronide constituent of certain brown algae.Calcium alginate is prepared by the neutralization of purified alginic acid with appropriate pH control agents,or from sodium algiante by metathesis with appropriate calcium salt.
Molecular formula: [(C6H7O6) 2Ca] n
CAS Reg.No. : 9005-35-0
Property:
White to pale yellow powder, calcium alginate is a divalent metal salt of alginic acid, insoluble in water, good dispersion, slowly soluble in an alkaline solution or a salt solution to form a viscous glue.
Application:
1) Used in food additives -- as calcium agents;
2) Industrial welding material;
3) Used in formulation of food;
4) Medical gauze and medicine dressings.
Specification:
Items
|
Index
|
Loss on Drying (%)
|
≤15
|
pH Value
|
6-9
|
Ash (%)
|
≤12-30
|
Calcium Oxide (on dried solids basis)
|
≤8-15
|
Heavy Metal (mg/kg)
|
≤40
|
Pb (mg/kg)
|
≤4
|
Ad (mg/kg)
|
≤2
|
Total Bacterial (cfu/g)
|
≤5000
|
Executive standard: Q/HZL003-2011
Package:
25kg(net weight) per bag,with compound package bag(a polyethylene bag as liner and a compound plastic woven bag as the outer layer).
Package:
25kg(net weight) per bag,with compound package bag(a polyethylene bag as liner and a compound plastic woven bag as the outer layer).