Basic information
- CAS
142-72-3- Standard SMILES
CC(=O)[O-].CC(=O)[O-].[Mg+2]- InChIKey
UEGPKNKPLBYCNK-UHFFFAOYSA-L- Molecular formula
- C4H6O4Mg
- Average molar mass
- 142.39 g/mol
- Monoisotopic mass
- 142.01165037
Overview
Magnesium acetate is the magnesium salt of acetic acid. It is functionally related to an acetic acid.
Names & identifiers
- Preferred name
- Magnesium Acetate
- IUPAC
- magnesium diacetate
- English name
- Magnesium acetate
- Molecular formula
- C4H6MgO4
- Molecular weight
- 142.39
Names & synonyms
Show more names
Database identifiers
- CAS
142-72-3- PubChem CID
- 8896
- DTXSID
DTXSID7027097- ChEMBL
CHEMBL1200691- ChEBI
CHEBI:62964- UNII
- 0E95JZY48K
- EC Number
- 205-554-9
- Nikkaji
- J43.168K
Properties
Computed structural properties
- Topological polar surface area
- 80.3 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 9
- Formal charge
- 0
- Complexity
- 25.5
Experimental & physicochemical properties
Cosmetics
Cosmetic ingredients (Magnesium Acetate) -> CIR (Cosmetic Ingredient Review)
Buffering
Human Drugs
FDA approved drugs -> Active ingredient
FDA approved drugs -> Active ingredient
Physical Description
Liquid; Large Crystals
Tetrahydrate: Colorless or white deliquescent solid; [Merck Index] White hygroscopic crystals with a mild odor of acetic acid; [Mallinckrodt Baker MSDS]
Physicochemical properties
- Melting point
- 72 · 72-75 °C(lit.)
- Density
- 1.5 · 1.5000
- refractive index
- 20 · n20/D 1.358
- solubility
- 2 O: · H2O: 1 M at 20 °C, clear, colorless
- form
- Liquid
- pka
- 4.756 · 4.756[at 20 ℃]
- color
- white orthorhombic/monoclinic crystals, crystalline
- PH
- 7.95 · 7.95(1 mM solution);8.23(10 mM solution);8.41(100 mM solution);8.78(1000 mM solution)
- Water Solubility
- Not miscible or difficult to mix with water.
- λmax
- 260 nm · λ: 260 nm Amax: 0.04λ: 280 nm Amax: 0.02
- Merck
- 13 · 13,5676
- BRN
- 3692530 · 3692530
- Stability
- Stable. Incompatible with strong oxidizing agents. Avoid moisture.
- Cosmetics Ingredients Functions
- BUFFERING
- Cosmetic Ingredient Review (CIR)
- Magnesium acetate (142-72-3)
- InChI
- 1S/2C2H4O2.Mg/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
- InChIKey
- UEGPKNKPLBYCNK-UHFFFAOYSA-L
- SMILES
- CC(=O)O[Mg]OC(C)=O
- LogP
- -1.38 · -1.38
- CAS DataBase Reference
- 142 · 142-72-3(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 0 E95JZY48K · 0E95JZY48K
- NIST Chemistry Reference
- Magnesium acetate(142-72-3)
- EPA Substance Registry System
- Magnesium acetate (142-72-3)
- UNSPSC Code
- 12161700 · 12161700
- NACRES
- 25 · NA.25
- Symbol(GHS)
- 2 · GHS02,GHS07
- Signal word
- Warning
- Hazard statements
- 312 · H312-H226-H332
- Precautionary statements
- 280 · P280-P302+P352-P312-P322-P363-P501-P261-P271-P304+P340-P312
- PPE
- Eyeshields, Gloves
- Safety Statements
- 22 · 22-24/25
- WGK Germany
- 3 · 3
- RTECS
- 5600000 · AI5600000
- F
- 3 · 3
- TSCA
- TSCA listed
- Storage Class
- 10 · 10 - Combustible liquids
- REACH Registrations
- Active
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 99.5% (2416 of 2427) of all reports.
Not Classified
Aggregated GHS information provided per 2427 reports by companies from 3 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory Information
Chemical: Acetic acid, magnesium salt
Acetic acid, magnesium salt (2:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Acetic acid, magnesium salt (2:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 10-10-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13613
Acetic acid, magnesium salt: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Members of the acetic acid and salts subcategory demonstrate low acute oral, dermal, and inhalation toxicity; Hyperplasia of the esophagus and forestomach in repeated-dose oral studies of rats; Increased spleen and kidney weights and signs of kidney injury in continuous inhalation studies at 23-31 ppm/day (60-80 mg/m3/day); No maternal or developmental toxicity in mice, rats, or rabbits in oral studies (doses up to 1,600 mg/kg/day); No evidence of mutagenicity; [EPA ChAMP: Hazard Characterization] May cause irritation; [Mallinckrodt Baker MSDS] See Sodium acetate.
Safety & protection
Protective Action Criteria (PAC)
26 [mg/m3]
280 [mg/m3]
1700 [mg/m3]
Toxicology
Safety data
- F
- 3
- PPE
- Eyeshields, Gloves
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- AI5600000
- Signal word
- Warning
- Symbol(GHS)
- GHS02,GHS07
- safety_code
- 22-24/25
- Storage Class
- 10 - Combustible liquids
- Hazard statements
- H312-H226-H332
- REACH Registrations
- Active
- Precautionary statements
- P280-P302+P352-P312-P322-P363-P501-P261-P271-P304+P340-P312
Chemistry & industry
Uses & manufacturing
Uses
CIR ingredient: Magnesium Acetate
Used as a buffer and to detect sodium; [Merck Index] Used as a catalyst for sulfuric acid; [EPA OHM/TADS] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]
Use Classification
EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives
Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
Food Additives -> FOOD_ADDITIVE -> JECFA Functional Classes
Cosmetics -> Buffering
General Manufacturing Information
All Other Basic Inorganic Chemical Manufacturing
Acetic acid, magnesium salt (2:1): ACTIVE
Applications
UsesMagnesium acetate is used in the manufacture of rayon fiber for cigarette filters; and as a fixative for dyes in textile printing. It also is used as an antiseptic and disinfectant.
DescriptionAnhydrous Magnesium Acetate has the chemical formula Mg(CH3COO)2 and in its hydrous form, Magnesium Acetate Tetrahydrate, it has the chemical formula Mg(CH3COO)2.4H2O. In this compound the magnesium metal has an oxidation state of 2+. Magnesium acetate is the magnesium salt of acetic acid.It is deliquescent and upon heating, it decomposes to form magnesium oxide.Magnesium acetate is commonly used as a source of magnesium or as a chemical reagent.
UsesDye fixative in textile printing, deodorant, disinfectant, and antiseptic. Magnesium acetate is used in chemistry and molecular biology as a reagent and a source of magnesium. Magnesium has a variety of biological roles in enzymology, cell membrane and wall structural integrity, muscle cell physiology, and nucleic acid structure.Magnesium is an essential co-factor in many enzymes, including deoxyribonuclease (DNase), the restriction enzymes EcoR I and EcoR V, and Ribonuclease H. Magnesium also stabilizes polymeric nucleic acids such as transfer RNA and ribozymes. Magnesium acetate has been widely used in the crystallization of proteins. A protocol for the separation of MB and BB isoenzymes of creatine kinase and the LD1 isoenzyme of lactate dehydrogenase that involves elution with magnesium acetate has been published.
UsesThe largest use for magnesium acetate is in the production of rayon fiber, which is used for cigarette filter tow. Magnesium acetate also has uses as a dye fixative in textile printing, as a deodorant, disinfectant, an antiseptic in medicine, and as a reagent chemical.
UsesMagnesium acetate is used in molecular biology applications such as batch in vitro transcription of RNA and the crystallization of transcription factor:DNA complexes and proteins via the sitting-drop vapor-diffusion method. Also used as a buffer and to detect sodium and as a catalyst for sulfuric acid.
Preparation methods
PreparationMagnesium acetate is prepared by treating magnesium oxide with acetic acid. Magnesium oxide reacts with concentrated acetic acid in boiling ethyl acetate to produce the alpha form of anhydrous magnesium acetate. The beta form is obtained by treating the oxide with 5–6% acetic acid. In slightly hydrated isobutyl alcohol medium the product is a monohydrate, Mg(OOCCH3)2•H2O. In aqueous solution magnesium acetate crystallizes as a tetrahydrate, the commercial product. The tetrahydrate dehydrates to anhydrous salt at 134°C.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers100 total
Additional notes
DefinitionChEBI: The magnesium salt of acetic acid.
Related reactions
Compound notes
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