Calcium acetate is the calcium salt of acetic acid.
Definition
Calcium acetate is the calcium salt of acetic acid. It is used, commonly as a hydrate, to treat hyperphosphataemia (excess phosphate in the blood) in patients with kidney disease: the calcium ion combines with dietary phosphate to form (insoluble) calcium phosphate, which is excreted in the faeces. It has a role as a chelator. It contains an acetate.
Source: PubChem
US FDA substance register · UNII Y882YXF34X · registered name Calcium acetate · single chemical substance
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
Reviewed by CIR: Final Report of the Cosmetic Ingredient Reveiw Expert Panel on the Safety Assessment of Methyl Acetate
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name 酢酸Ca: 本品は、酢酸(*)のカルシウム塩であり、次の化学式で表される。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 62-54-4
- EC No.EU chemical inventory number
- 200-540-9
- DTXSIDUS EPA chemical ID
- DTXSID0020234
- DTXCIDUS EPA compound ID
- DTXCID00234
- IUPAC
- Calcium diacetate
- Molecular formula
- C4H6CaO4
- Molecular weight
- 158.166 g/mol
Measured properties
- Appearance
- Large Crystals, CBI, Dry Powder, Other Solid, Liquid · Anhydrous calcium acetate is a white, hygroscopic, bulky, crystalline solid with a slightly bitter taste. A slight odour of acetic acid may be present. The monohydrate may be needles, granules or powder
- Odour
- SLIGHT ODOR OF ACETIC ACID
- Melting point
- > 160 °C
- Solubility
- 37.4 G IN 100 CC OF WATER @ 0 °C, 29.7 G IN 100 CC OF WATER @ 100 °C, SLIGHTLY SOL IN ALCOHOL · Practically insol in acetone and benzene
- Density
- 1.50 kg/l · 1.5 g/cm³
- Stability
- VERY HYGROSCOPIC ...
- pH
- 6,0-9,0 (10 % aqueous solution) · 0.2 molar aq soln: 7.6 /Monohydrate form/
- Flammability (solid, gas)
- combustible
- Vapour pressure
- 0.005 ㎜Hg (at 25℃)
- Water solubility
- 400000 ㎎/ℓ
- Vapour density
- 5.46
- Relative density
- 1.50
- n-Octanol/water partition coefficient (Kow)
- -1.38
- Auto-ignition temperature
- 340 ℃
- Decomposition temperature
- 160 ℃
- Molecular weight
- 158.17
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 24 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Thickening agent5
- Lubricating agent3
- Stabilizing agent3
- Processing aids not otherwise specified2
- Preservative2
- Filler2
- Chelating agent1
- Viscosity modifier1
5 other uses
- pH regulating agent1
- Dye1
- Flavouring and nutrient1
- Anti-freeze agent1
- Deodorizer1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
1 skin studies and 1 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 2 studies
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to
Source: US EPA CompTox dashboard
Related literature
- Calcinosis Cutis With Selective Fibroblast Growth Factor Receptor Inhibitors: A Case Report and Review of Literature · 2025
- Properties of liquids and dusts: how do they influence dermal loading during immersion, deposition, and surface contact exposure pathways? · 2013
- Preparation of bromfenac-loaded liposomes modified with chitosan for ophthalmic drug delivery and evaluation of physicochemical properties and drug release profile · 2013
- Astringent drug products that produce aluminum acetate; skin protectant drug products for over-the-counter human use; technical amendment. Final rule; technical amendment. · 2009
- Breast Pain and Rash in an End‐Stage Renal Disease Patient Following Coronary Artery Bypass Grafting · 2007
Linked databases 21
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- NIST Chemistry WebBook
- PubChem 2
- Tlooto literature search 2 3 4 5
- UniChem cross-reference IDs
- US Cosmetic Ingredient Review (CIR) 2
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · Korean · English · Japanese · Chinese