Calcium acetate
CAS Number
62-54-4
EC Number
200-540-9
E Number
E263
FEMA Number
FEMA 2228
What is Calcium acetate?
Calcium acetate (CAS 62-54-4), also known by the E-number E263, is an inorganic calcium salt used in food, pharmaceutical, and cosmetic manufacturing.
Where is Calcium acetate used?
- Food: preservative, pH buffer, and sequestrant that controls acidity and extends shelf life in baked goods, confectionery, and processed foods
- Pharmaceutical: active excipient in phosphate-binding preparations such as Phoslyra and PhosLo for renal patients
- Personal care: buffering agent and firming component in creams, gels, and topical formulations
- Industrial: catalyst precursor in acetone production and setting agent in textile and paper processing
- It functions primarily as a preservative, pH buffer, and sequestrant in formulated products.
Good to know: Pharmaceutical-grade material is subject to stricter purity and documentation requirements.
Commercial specifications
- Monohydrate is the most commercially prevalent form
- Bulk quantities for industrial use
Other Names (Synonyms)
Phoslyra|Phoslo Gelcaps|Phoslo|Lime pyrolignite|Lime acetate|Gray acetate of lime|Eliphos|calcium(II) acetate|E263
What are the physical properties of Calcium acetate?
Melting Point 160 °C (decomp)
Density 150 g/cm³
Flash Point 160°C
Appearance white crystals or powder
Color white
Odor mild acetic
Form powder
Water Solubility soluble
Refractive Index 1.5500
pH 8(1 mM solution);8.43(10 mM solution);8.77(100 mM solution);9.13(1000 mM solution)
Log P -0.29
How is Calcium acetate classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
Precautionary Statements
P264 Wash … thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
P264+P265 Wash … thoroughly after handling.
Which trade and regulatory codes apply to Calcium acetate?
HS Code 29152990
Storage Class 13 - Non Combustible Solids
WGK (Germany) 1