Calcium propionate
Synonyms
Calcium dipropionate;
Propanoic acid, calcium salt;
Propanoic acid, calcium salt (2:1);
Category
Anionic Surfactant
> Carboxylate
>> Chain Carboxylate
>>> Alkyl Carboxylate
>>>> Linear Alkyl Carboxylate
Chemical Numbering System
CAS: 4075-81-4
EINECS: 223-795-8
Molecular Formula & Molecular Weight
Molecular Formula: C6H10CaO4; C3H6O2.1/2Ca
Molecular Weight: 186.22
Structure
Properties
Appearance (1), white to pale yellow powder.
Solubility soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
rat oral LD50 |
3920mg/kg[1] |
|
mouse oral LD50 |
2350mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antimicrobial, antibacterial, preservative abilities.
Synthesis
Propanoic acid reacts with calcium carbonate or calcium hydroxide, then obtain.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
GB/T 5173 Surface active agents and detergents -- Determination of anionic-active matter by direct two-phase titration procedure
ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), GB 25548 Food additive -- Calcium propionate
(1b), HG 2921 Food additive -- Calcium propionate
(1c), NY 41 Feed grade calcium propionate
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.
Major Uses
1, Typical applications
Use as antimicrobial agent, antibacterial agent, preservative.
2, Personal care products
Preservative in personal care products.
* * * * * *
Further informations:
(1), In accordance with EU regulations (EC) No 1223/2009, directive 2007/17/EC, propionic acid and its salts are included in Annex V/2.
Maximum concentration is 2.0% (as acid).
(2), China “Safety and Technical Standards for Cosmetics (2015)”: allowable preservative, maximum concentration is 2.0% (as acid).
3, Food
Use as food additive (preservative).
4, Feed
Use as feed additive (preservative).
Manufacturers
References
[1]: ChemIDplus. 4075-81-4, Calcium propionate
Update: 20140209(1); 20180826(2);