Magnesium acetate tetrahydrate has the chemical formula Mg(CH3COO)2.4H2O. In this compound magnesium 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 in biological reactions. Magnesium acetate appears as white hygroscopic crystals. It smells like acetic acid and is soluble in water. When it is in an aqueous solution its pH will be on the alkaline side of neutral.
We offer BP Analytical reagent grade of Magnesium acetate.
Mg(CH3COO)2-4H2O -- 214.5 -- 16674-78-5
DEFINITION
Content:
98.0 per cent to 101.0 per cent of magnesium acetate (anhydrous substance).
CHARACTERS
Appearance:
Colourless crystals or white, crystalline powder.
Solubility:
Freely soluble in water and in alcohol.
IDENTIFICATION
A. Dissolve about 100 mg in 2 ml of water. Add 1 ml of dilute ammonia and heat. A white precipitate is formed that dissolves slowly on addition of 5 ml of ammonium chloride solution. Add 1 ml of disodium hydrogen phosphate solution. A white crystalline precipitate is formed.
B. It gives reaction of acetates.
TESTS
pH: 7.5 to 8.5.
Dissolve 2.5 g in carbon dioxide-free water and dilute to 50 ml with the same solvent.
Chlorides: Maximum 330 ppm.
Nitrates: Maximum 3 ppm.
Sulphates: Maximum 600 ppm.
Aluminium: Maximum 1 ppm.
Calcium: Maximum 100 ppm.
Potassium: Maximum 0.1 per cent.
Sodium: Maximum 0.5 per cent.
Heavy metals: Maximum 40 ppm.
Readily oxidizable substances: Dissolve 2.0 g in 100 ml of boiling water, add 6 ml of a 150 g/l solution of sulphuric acid and 0.3 ml of 0.02 M potassium permanganate. Mix and boil gently for 5 min. The pink colour is not completely discharged.
Water: 33.0 per cent to 35.0 per cent, determined on 0.100 g.
(CH3COO)2Mg-4H2O --- Formula Weight 214.46 --- CAS Number 16674-78-5
REQUIREMENTS
Assay: 98.0-102.0% (CH3CO2)2Mg . 4H2O
MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.001%
Sulfate (SO4): 0.005%
Barium (Ba): 0.001%
Calcium (Ca): 0.01%
Manganese (Mn): 0.001%
Potassium (K): 0.005%
Sodium (Na): 0.005%
Strontium (Sr): 0.005%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
1. Product Identification
Product Name & Other Names: Magnesium acetate tetrahydrate or magnesium diacetate or Magnesium acetate, 4-hydrate, powder or acetic acid, magnesium salt or Cromosan.
CAS No.: 142-72-3 (Anhydrous); 16674-78-5 (Tetrahydrate)
EINECS EC Code: 205-554-9
Molecular Weight: 214.4
Chemical Formula: (CH3COO)2Mg.4H2O
Relevant uses and uses advised against (if any): Industrial Manufacturing.
Suppliers: As per letterhead.
2. Hazards Identification
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008
Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
Labeling according GHS & Regulation (EC) No 1272/2008
| GHS Label Elements NONE |
Signal Word: None
Hazards not otherwise classified (HNOC):
May causes mild skin irritation.
May causes mild eye irritation.
Precautionary statements:
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P262: Do not get in eyes, on skin, or on clothing.
P281: Use personal protective equipment as required.
P302+P352 - IF ON SKIN: Wash with plenty of soap and water.
P304 + P340 - IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+313: If eye irritation persists get medical advice/attention.
3. Composition/Information on Ingredients
Product Name & Other Names: Magnesium acetate tetrahydrate or magnesium diacetate or Magnesium acetate, 4-hydrate, powder or acetic acid, magnesium salt or Cromosan.
CAS No.: 142-72-3 (Anhydrous); 16674-78-5 (Tetrahydrate)
EINECS EC Code: 205-554-9
Percent: 98 - 100%
4. First Aid Measures
Inhalation: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Ingestion: If large amounts were swallowed, give water to drink and get medical advice.
Skin Contact: Wash exposed area with soap and water. Get medical advice if irritation develops.
Eye Contact: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
5. Fire Fighting Measures
Fire: Magnesium Acetate is not considered to be a fire hazard.
Explosion: Not considered to be an explosion hazard.
Fire Extinguishing Media: Use any means suitable for extinguishing surrounding fire.
Hazardous Combustion Products: Carbon monoxide (CO) Carbon dioxide (CO2) Magnesium oxides.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. At high temperatures under fire conditions, it may produce toxic or irritating fumes. Fire-extinguishing work is done from the windward and the suitable fire-extinguishing method according to the surrounding situation is used. Uninvolved persons should evacuate to a safe place.
6. Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Avoid breathing dust/fumes/gas/mist/vapors/spray. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Restrict unprotected personnel from the area. Prevent any contact with hot surfaces. Do not approach facing the wind. Do not touch the spilled material.
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment Cleanup procedures and Storage: Do not inhale dust, vapors, mist, or gas. Avoid dust formation. Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite). Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface and allow to evacuate as per law.
7. Handling and Storage
Precautions for safe handling: Apply according to good manufacturing and industrial hygiene practices. Ensure proper ventilation. In case of insufficient ventilation, wear suitable respiratory equipment. Wash thoroughly after handling. Do not drink, eat, or smoke while handling. Avoid contact with skin, eyes, and clothing. Minimize dust generation. Avoid breathing dust/fumes/gas/mist/vapors/spray. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Prevent any contact with hot surfaces.
Conditions for safe storage, including any incompatibilities: Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in tightly closed original container. Keep air contact to a minimum. Store protected from heat, sparks and ignition sources and incompatible materials. Avoid contact with skin and eyes. Avoid inhalation of dust/mist/vapor. Do not store with incompatible materials like strong oxidizing agents.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits: None established.
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures as low as possible. Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of it into the general work area. Please refer to the ACGIH document, Industrial Ventilation, A Manual of Recommended Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator (NIOSH type N95 or better filters) may be worn. If oil particles (e.g. lubricants, cutting fluids, glycerin, etc.) are present, use a NIOSH type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient atmospheres.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles. Maintain eye wash fountain and quick-drench facilities in work area.
Other Control Measures: Maintain good housekeeping in work area. Dust deposits on floors and other surfaces may pick up moisture and cause the surfaces to become slippery and present safety hazards. Handle in accordance with good industrial hygiene and safety practice. Wash hands after handling.
9. Physical and Chemical Properties
Appearance: Magnesium Acetate is white hygroscopic crystals.
Odor: Light smell of acetic acid.
Odor threshold: Not available.
pH: Aqueous solution is almost neutral.
Relative density: about 1.45
Melting Point: 80C (176F).
Initial boiling point and boiling range: Not available.
Flash point: Not available.
Auto-ignition temperature: Not available.
Decomposition temperature: Not available.
Upper/lower flammability or explosive limits: Not available.
Vapor pressure: Not available.
Vapor density: Not available.
Evaporation rate: Not available.
Flammability (solid, gas): Not available.
Partition coefficient: n-octanol/water: Not available.
Solubility: Soluble in water.
Viscosity: Not available.
10. Stability and Reactivity
Stability: Magnesium Acetate is stable under ordinary conditions of use and storage. Very hygroscopic.
Hazardous Decomposition Products: May produce oxides of carbon and the contained metal.
Hazardous Polymerization: Will not occur.
Incompatibilities: Strong oxidizers.
Conditions to Avoid: Moisture and incompatibles.
11. Toxicological Information
No LD50/LC50 information found relating to normal routes of occupational exposure. Investigated as a mutagen.
Carcinogenicity: Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
12. Ecological Information
Toxicity to fish: No information available.
Persistence and Degradability: Unlikely to persist due to water solubility.
Mobility: Likely to be mobile due to water solubility.
Bioaccumulation/ Accumulation: No information available.
Results of PBT and vPvB assessment: No data available for assessment.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused Magnesium Acetate in accordance with federal, state and local requirements.
14. Transport Information
DOT USA, TDG Canada & ADR/RID Europe: Not dangerous goods.
IMDG/IMO: Not dangerous goods.
IATA/ICAO: Not dangerous goods.
15. Regulatory Information
USA:
SARA 302: Not Listed
SARA 313: Not Listed
California Proposition 65: Not Listed
DISCLAIMER: The information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed correct as of the date hereof. It is compiled from various sources and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules or insurance requirements applicable. This MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose.
