Basic information
- Name:
Magnesium oxide
- CAS No.:
1309-48-4
- Molecular Structure:
- Formula:
- MgO
- Molecular Weight:
- 40.31
- Deleted CAS:
- 13589-16-7|185461-91-0|187036-80-2|227961-49-1|52933-73-0|82375-77-7
- Synonyms:
- Magnesium monoxide;Magox;Marmag;Micromag 150;Micromag 3-30;NanoActive Magnesium Oxide Plus;NanoActiveMgO Plus;PG 9033;Pyrokisuma 3320;Pyrokisuma 3320K;Pyrokisuma 530;RSG;Rhenofit D/A;SL;SLO 469;SSP 1;Sanka Magnesium EL;Starmag 150;Anscor P;Calcinedmagnesia;Caustic magnesite;DAB 6 (oxide);E 10 (oxide);E 4 (oxide);Elastomag 100;FMR-PC;FloMag HP;FloMag HP-ER;HP 30;HTMg 02;KM 3;KM 3150;KMA-X;KMAOH-F;KP 3083;KPLL 20;Kyowaad 100;Kyowamag 150;Kyowamag 150B;Kyowamag 20;Kyowamag 30;Kyowamag 60;Kyowamag MF 30;Liquimag A;Luvatol 35;Luvatol DH 25;Luvatol EK100KM;Luvatol MK 35;MF 30;MJ 30;Mag Chem 10;Mag Chem 10-325;Mag Chem 200AD;
- EINECS:
- 215-171-9
- Density:
- 3.58 g/cm3
- Melting Point:
- 2852 °C
- Boiling Point:
- 3600 °C
- Solubility:
- 5 M HCl: 0.1 M at 20 °C, clear, colorless
- Appearance:
- white or light grey powder
- Risk Codes:
- 20/22-36/37/38
- Safety Description:
- 24/25 Details
- Transport Information:
- UN 1418
- particular:
- particular
Famous Chemical Enterprises
-
Livzon -
Total -
Shell -
Dupont -
Exxonmobil -
Akzonobel -
Basf -
Bayer -
BP
Please post your buying leads,so that our qualified suppliers will soon
contact you!
*Required Fields
Chemistry
Structure of Magnesium oxide (CAS NO.1309-48-4):
Molecular formula:MgO
Molar mass:40.3044 g/mol
IUPAC Name: oxomagnesium
Density:3.8 g/cm3
Melting point: 2852 ºC
Boiling point: 3600 ºC
Water solubility: 6.2 mg/L (20 ºC), reacts
Solubility: soluble in acid, ammonia;insoluble in alcohol
Stability: Stable. Incompatible with bromine trifluoride, bromine trichloride, phosphorus pentachloride.
Appearance: white or light grey powder
Product Categories: Inorganic Chemicals;Inorganics;Adsorbents, Filter Aids and Drying Agents;Other Drying AgentsEssential Chemicals;12: Mg;MagnesiumMaterials Science;Nanomaterials;Nanoparticles: Oxides, Nitrides, and Other CeramicsNanomaterials;Nanopowders and Nanoparticle Dispersions;Electronic MaterialsChemical Synthesis;Materials Science;Micro/Nanoelectronics;MagnesiumMetal and Ceramic Science;Catalysis and Inorganic Chemistry;Chemical Synthesis;MagnesiumEssential Chemicals;Metal and Ceramic Science;Reagent Grade;Routine Reagents;Analytical Reagents for General Use;M-N, Puriss p.a. ACSMetal and Ceramic Science;Puriss p.a. ACS;Magnesium;Oxides;ACS GradeChemical Synthesis;Essential Chemicals;MagnesiumSubstrates and Electrode Materials;Single Crystal Substrates;Substrates
Canonical SMILES: O=[Mg]
InChI: InChI=1S/Mg.O
InChIKey: CPLXHLVBOLITMK-UHFFFAOYSA-N
Uses
Magnesium oxide (CAS NO.1309-48-4) has many uses:
1.In medicine, it is used for relief for heartburn and sore stomach, as an antacid, magnesium supplement, and as a short-term laxative. It is also used to improve symptoms of indigestion. Side effects of magnesium oxide may include nausea and cramping.In quantities sufficient to obtain a laxative effect, side effects of long-term use include enteroliths resulting in bowel obstruction.
2.It is used extensively in electrical heating as a component of "CalRod"-styled heating elements. There are several mesh sizes available and most commonly used ones are 40 and 80 mesh per the American Foundry Society. The extensive use is due to its high dielectric strength and average thermal conductivity. MgO is usually crushed and compacted with minimal airgaps or voids. The electrical heating industry also experimented with aluminium oxide, but it is not used anymore.
3.It is used as a reference white color in colorimetry, owing to its good diffusing and reflectivity properties.It may be smoked onto the surface of an opaque material to form an integrating sphere.
4.It is used as a principal ingredient in construction materials used for fireproofing.
5.It is used by many libraries for preserving books by reacting with ambient moisture to dry the book storage areas.
6.Used as a basic refractory material for crucibles.
7.Used as an insulator in industrial cables.
Production
Heating magnesium carbonate (MgCO3) or magnesium hydroxide [Mg(OH)2] produces Magnesium oxide (CAS NO.1309-48-4) (MgO).
MgCO3 → MgO
Mg(OH)2 → MgO
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| human | TCLo | inhalation | 400mg/m3 (400mg/m3) | "Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2n rev. ed. in 1985.Vol. 2A, Pg. 1745, 1981. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Risk Statements of Magnesium oxide (CAS NO.1309-48-4): 20/22-36/37/38
R20/22:Harmful by inhalation and if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25
S24/25:Avoid contact with skin and eyes.
RIDADR: UN 1418
WGK Germany: 1
RTECS: OM3850000
F: 3
HazardClass: 8
PackingGroup: III
HS Code: 25199010
Hazardous Substances Data 1309-48-4(Hazardous Substances Data)
Inhalation of the fumes can produce a febrile reaction and leucocytosis in humans. Questionable carcinogen with experimental tumorigenic data. Violent reaction or ignition in contact with interhalogens (e.g., bromine pentafluoride, chlorine trifluoride). Incandescent reaction with phosphorus pentachloride. See also MAGNESIUM COMPOUNDS.
Standards and Recommendations
OSHA PEL: Fume: Total Dust: TWA 10 mg/m3; Respirable Fraction: 5 mg/m3
ACGIH TLV: TWA 10 mg/m3 (fume); Not Classifiable as a Human Carcinogen
DFG MAK: 1.5 mg/m3 (fume)
Analytical Methods
For occupational chemical analysis use OSHA: #ID-125 g.
Specification
Magnesium oxide , its cas register number is 1309-48-4. It also can be called 100A (oxide) ; AM 2 (cement additive) ;
Akro-mag ; Animag ; Anscor P ; BayMag ; Calcined brucite ; Calcined magnesia ; Causmag ; Caustic magnesite ; Elastomag 170 ; Fert-O-Mag ; FloMag HP ; Granmag ; Hamag LP ; Heavy calcined magnesia ; Heavy magnesia ; Heavy magnesium oxide ; Light magnesia ; Liquimag A ; Liquimag B ; Luvatol MK 35 ; Maglite ; Magmilax bolus ; Magnesa preprata ;
Magnesia ; Magnesia USTA ; Magnesia monoxide ; Magnezu tlenek ; Magox ; Marmag ; Oxymag ; Periclase ; Seasorb ;
Seawater magnesia .