High Purity Magnesium Oxide Light & Heavy Commercial Pure & BP FCC Food grade Manufacturers with SDS MSDS Sheet.

Supplier, Manufacturer, Exporter of Magnesium Oxide, Muby Chemicals of Mubychem Group, established in 1976, is the original manufacturers of Specialty Chemicals, Pharmaceutical Excipient, Fragrance Food & Flavor chemicals, Reagent Grade Chemicals, Shale Gas Fracturing Chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India and world wide contacts and toll manufacturers. We are exporting globally to countries like USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Dubai, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, China, Germany, France, Italy, Portugal, Bangladesh, etc.

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Magnesium Oxide CAS Number 1309-48-4. EINECS EC Number 215-171-9, HS Code ---**; Molecular Weight 40.30, Molecular Formula: MgO

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MSDS Sheet of Magnesium Oxide Manufacturers

Spanish Fabricantes de óxido de magnesio

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Magnesium Oxide
Light & Heavy MgO Commercial Pure n FCC Food Grade Suppliers
Magnesium Oxide

We manufacture and supply high purity Magnesium Oxide and Magnesium Peroxide.

Magnesium Oxide is offered as Commercial Pure, BP Ph Eur & FCC Food Grade.

High purity Magnesium oxide is produced by the calcination of magnesium carbonate or magnesium hydroxide or by the treatment of magnesium chloride with lime followed by heat. Calcining at different temperatures produces magnesium oxide of different reactivity. High temperatures 1500 - 2000C diminish the available surface area and produces dead-burned (often called dead burnt) magnesia, an un-reactive form used as a refractory. Calcining temperatures 1000 - 1500C produce hard-burned magnesia which has limited reactivity and calcining at lower temperature, (700-1000C) produces light-burned magnesia, a reactive form, also known as caustic calcined magnesia. Although some decomposition of the carbonate to oxide occurs at temperatures below 700C, this appears rapidly reversible due to absorption of carbon dioxide from the air.

*MgO is lightly burned high-purity magnesia that is available for a variety of uses.
*MgO #150 is a high-active product..
*MgO P and KS are pharmaceutical-grade products.
*MgO KS is a granular type. It has good flow-ability and helps to improve productivity.
*MgO PSF is a fine-powder type of average particle size (1um). It contains less metal elements such as Fe, etc. It has a high purity and whiteness.

Specifications of Standard Grade of MgO
Item of Quality STARMgO#150 -- EX-STOCK
Highly Active RUNNING ITEM
Moisture(%) 0.5
Loss on Ignition(%) 6.5
MgO *1(%) 98.0
CaO(%) 0.6
Fe(%) 0.02
Al(%) 0.01
Acid Insoluble Substances(%) 0.01
Bulk Density(g/ml) 0.55
Average Particle Size(um) 3.5
Specific Surface Area (BET)(m2/g) 145
Screen Residue (75um)(%) 0.01

*1 Measured after Ignition

We also offer High Purity Magnesium oxide of the Grade HP Series, having consistent stable quality and characteristics.

Apart from that we offer BP grade and FCC food grade MgO.

Packing: Net weights are 25kg, 20kg and 10kg. Products are packed in multilayer bags or in drums, with a separately sealed polyethylene inner bag.

Heavy Magnesium Oxide BP Grade
Ph Eur
MgO -- 40.30 -- CAS 1309-48-4
Action and use
Antacid; osmotic laxative.

Content: 98.0 per cent to 100.5 per cent of MgO (ignited substance).

Appearance: Fine, white or almost white powder.
Solubility: Practically insoluble in water. It dissolves in dilute acids with at most slight effervescence.

A. 15 g has an apparent volume (2.9.15) before settling of not more than 60 ml.
B. Dissolve about 15 mg in 2 ml of dilute nitric acid R and neutralise with dilute sodium hydroxide solution R. The solution gives the reaction of magnesium.
C. Loss on ignition (see Tests).

Solution S: Dissolve 5.0 g in a mixture of 30 ml of distilled water and 70 ml of acetic acid, boil for 2 min, cool and dilute to 100 ml with dilute acetic acid. Filter, if necessary, through a previously ignited and tared porcelain or silica filter crucible of suitable porosity to give a clear filtrate.
Appearance of solution: Solution S is not more intensely coloured than reference.
Soluble substances: Maximum 2.0 per cent.
To 2.00 g add 100 ml of water R and boil for 5 min. Filter whilst hot through a sintered-glass filter (40) (2.1.2), allow to cool and dilute to 100 ml with water R. Evaporate 50 ml of the filtrate to dryness and dry at 100-105C. The residue weighs a maximum of 20 mg.
Substances insoluble in acetic acid: Maximum 0.1 per cent.
Any residue obtained during the preparation of solution S, washed, dried, and ignited at 600 ±50 °C, weighs a maximum of 5 mg.
Chlorides: Maximum 0.1 per cent.
Sulphates: Maximum 1.0 per cent.
Arsenic: Maximum 4 ppm, determined on 5 ml of solution S.
Calcium: Maximum 1.5 per cent.
Iron: Maximum 0.07 per cent.
Heavy metals: Maximum 30 ppm.
Loss on ignition: Maximum 8.0 per cent, determined on 1.00 g at 900 ± 25 °C.

Dissolve 0.320 g in 20 ml of dilute hydrochloric acid and dilute to 100.0 ml with water. Using 20.0 ml of the solution, carry out the complexometric titration of magnesium. 1 ml of 0.1 M sodium edetate is equivalent to 4.030 mg of MgO.

Light Magnesium Oxide IP
Light Magnesia
MgO ---- Moleculare Weight40.30
Category: Antacid, Osmotic Laxative.
Description: Very fine, light, white powder, odourless. 15g occupies a volume of about 150ml.
Solubility: Practically insoluble in water, insoluble in ethanol(95%).It dissolves in dilute acids with at most slight effervescence.

Light Magnesium Oxide contains not less than 98.0 per cent and not more than 100.5per cent of MgO, Calculated with reference to the substance ignited at 900°C.
Arsenic; Heavy metals; Sulphates; Calcium; Soluble substances; Substances insoluble in acetic acid ; Loss on ignition :Complies with the requirements stated under Heavy Magnesium Oxide using, where appropriate, solution A and residue R prepared as described therein.
Colour of Solution: Prepare Solution A and residue R as described in the test for colour of solution under Heavy Magnesium Carbonate. Solution A is not more than intensely Coloured than reference solution.
Iron: Solution complies with the limit test for iron, Appendix 3.13 (0.1%).
Chloride: 4.0ml of solution A complies with the limit test for chlorides, Appendix 3.10(0.125%)

Magnesium Oxide FCC Food Grade Specifications
MgO Formula wt 40.30
INS: 530 CAS 1309-48-4

Magnesium Oxide occurs as a very bulky, white powder, known as Light Magnesium Oxide or as a relatively dense, white powder known as Heavy Magnesium Oxide. Five grams
of Light Magnesium Oxide occupies a volume of approximately 40 to 50 mL, while 5 g of Heavy Magnesium Oxide occupies a volume of approximately 10 to 20 mL. It is soluble in dilute acids, practically insoluble in water, and insoluble in alcohol.
Function: pH control; neutralizer; anticaking agent; freeflowing agent; firming agent.

Labeling: Indicate whether it is Light Magnesium Oxide or Heavy Magnesium Oxide.
Identification A solution of sample in 2.7 N hydrochloric acid gives positive tests for Magnesium, Appendix IIIA.
Assay Not less than 96.0% and not more than 100.5% of MgO after ignition.
Acid-Insoluble Substances Not more than 0.1%.
Alkalies (Free) and Soluble Salts Passes test.
Arsenic Not more than 3 mg/kg.
Calcium Oxide Not more than 1.5%.
Lead Not more than 4 mg/kg.
Loss on Ignition Not more than 10.0%.

Assay: Ignite about 500 mg of sample to constant weight at 800° _ 25° in a tared platinum crucible, accurately weigh the residue, dissolve it in 30.0 mL of 1 N sulfuric acid, boil gently to remove any carbon dioxide, cool, add methyl orange TS, and titrate the excess acid with 1 N sodium hydroxide. From the volume of 1 N sulfuric acid consumed deduct the volume of 1 N sulfuric acid corresponding to the content of calcium oxide in the sample taken for the assay. The difference is the volume of 1 N sulfuric acid equivalent to the MgO in the sample taken. Each milliliter of 1 N sulfuric acid is equivalent to 20.15 mg of MgO and to 28.04 mg of CaO.
Acid-Insoluble Substances Mix 2.0 g of sample with 75 mL of water, add hydrochloric acid in small portions, with agitation, until no more of the sample dissolves, and boil for 5 min. If an insoluble residue remains, filter it through a suitable tared porous-bottom porcelain crucible, wash well with water until the last washing is free from chloride, ignite at 800°_ 25° for 45 min, cool, and weigh.
Note: Avoid exposing the crucible to sudden temperature changes.
Alkalies (Free) and Soluble Salts Boil 2 g of sample with 100 mL of water for 5 min in a covered beaker, and filter while hot. Add methyl red TS, and titrate 50 mL of the cooled filtrate with 0.1 N sulfuric acid. Not more than 2 mL of the acid is consumed. Evaporate 25 mL of the filtrate to dryness, and dry at 105° for 1 h. Not more than 10 mg of residue remains.
Arsenic Determine as directed under Arsenic Limit Test, Appendix IIIB, using a solution of 1 g of sample in 10 mL of 2.7 N hydrochloric acid.
Calcium Oxide Dissolve about 400 mg of sample, accurately weighed, in a mixture of 3 mL of sulfuric acid and 22 mL of water. Add 50 mL of alcohol, and allow the mixture to stand overnight. If crystals of magnesium sulfate separate, warm the mixture to about 50° to dissolve them. Filter through a suitable tared, porous-bottom porcelain crucible, previously washed with 2 N sulfuric acid, water, and alcohol. Wash the crystals on the porous disk several times with a mixture of 2 volumes of alcohol and 1 volume of 2 N sulfuric acid. Ignite the crucible and contents at 450° _ 25° to constant weight. The weight of calcium sulfate so obtained, multiplied by 0.4119, gives the equivalent of calcium oxide in the sample taken for the test.
Note: Avoid exposing the crucible to sudden temperature changes.
Lead Determine as directed under Lead Limit Test, Appendix IIIB, using a solution of 1 g of sample in 20 mL of 2.7 N hydrochloric acid, and 4 _g of lead (Pb) ion in the control.
Loss on Ignition Transfer about 500 mg of sample, accurately weighed, into a tared, covered, platinum crucible. Ignite at 800° _ 25° for 15 min, cool, and weigh.

We also manufacture and supply micro-encapsulated Magnesium Oxide.

We manufacture and supply as under:

Calcium Oxide

Magnesium Acetate

Magnesium Alpha Ketoglutarate

Magnesium Aluminum Silicate

Magnesium arginate, Magnesium lysinate, Magnesium taurinate, Magnesium enriched yeast

Magnesium Butyrate

Magnesium Citrate

Magnesium Chloride Hexahydrate & Anhydrous

Magnesium Glycerophosphate

Magnesium Oxide

Magnesium Pidolate

Magnesium Peroxide

Magnesium Propionate

Magnesium Sulfate Hepta & Anhydrous

Magnesium Trisilicate

Magnesium Carbonate Hydroxide

Magnesium Taurate

Nickel Oxide.


Ambernath Mumbai, Ankleshwar Gujarat, India
TEL: (OFFICE) +912223770100, +912223726950
Current Date Time in India GMT+5:30

e-mail: info@mubychem.com

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Call toll-free 1-877-682-9243 (1-877-MUBYCHEM)

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Last 8 July, 2024

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Magnesium Oxide SDS, Safety Data Sheet
MSDS Sheet, Material Safety Data Sheet


Product Name & Other Names: Magnesium Oxide
CAS Number: 1309-48-4
EINECS EC Number: 215-171-9
Molecular Formula: MgO
Molecular Weight: 40.3
Relevant uses and uses advised against (if any): Industrial Manufacturing.
Suppliers: As per letterhead.


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

Signal Words: 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.


Product Name & Other Names: Magnesium Oxide.
CAS Number: 1309-48-4
EINECS EC Number: 215-171-9


Always get medical attention after the first aid is over.
Eyes - Flush with water for at least 15 minutes, raising and lowering eyelids occasionally. Get medical attention if irritation persists.
Skin - Thoroughly wash exposed area for at least 15 minutes. Remove contaminated clothing. Launder contaminated clothing before reuse. Get medical attention if irritation persists.
Ingestion - If Magnesium Oxide is swallowed, if conscious, give plenty of water. Immediately call a physician. Never give anything by mouth to an unconscious person.
Inhalation - Remove to fresh air. Give oxygen if breathing is difficult; give artificial respiration if breathing has stopped. Get medical attention.


Extinguisher Media: Use media suitable to extinguish surrounding fire. Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide.
Flammable Limits in Air % by Volume: N/A
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.


Personal precautions, protective equipment, and emergency procedures: Ventilate area of leak or spill. 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: Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite). Vacuum or sweep-up and remove to an approved disposal container. Finish cleaning by spreading water on the contaminated surface and allow to evacuate as per law.


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 and acids.


Workplace control parameters:
Magnesium oxide CAS # 1309-48-4 TWA Control parameter 10 mg/m3 USA. Basis: ACGIH Threshold Limit Values (TLV)
Magnesium Oxide CAS # 1309-48-4 TWA Control parameter 15 mg/m3 Basis: US (OSHA) 29 CFR 1910.1000 Table Z-1 Limits for Air Contaminants.
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.
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 may be worn. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles and/or full face shield where dusting or splashing of solutions is possible. 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.


Appearance: White powder or granules.
: Odorless.
Odor threshold: Not available.
pH: 4.5 to 8.5
Relative density: around 3.58
Melting Point: 2852C.
Boiling Point: 3600C.
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 in Water: Insoluble in water.
Viscosity: Not available.
Molecular Formula: MgO
Molecular Weight: 40.3


Stability: Magnesium Oxide is stable
Conditions to Avoid: Heat, humidity
Incompatibility (Materials to Avoid): Strong oxidizing agents, Strong acids. May react violently with phosphorous pentachloride and strong acids.
Hazardous Decomposition Products: Sulfur & Potassium oxide
Hazardous Polymerization: Will not occur.


Toxicity Data: LD50 Oral - Rat - 3990 mg/kg
Carcinogenicity: No component of this product present at levels greater than or equal to 0.1% is identified as possible or confirmed human carcinogen by IARC, ACGIH, OSHA and NTP.
Mutagenic Effects: Not available.
Teratogenic Effects: Not available.
Developmental Toxicity: Not available.
Reproductive Effects: No information available.


Toxicity to fish: NA
Persistence and Degradability: No information available.
Mobility: No information available.
Bioaccumulation/ Accumulation: No information available.
Results of PBT and vPvB assessment: No data available for assessment.


Waste Disposal Methods: Dispose in accordance with all applicable Federal, State and Local regulations.


DOT USA, TDG Canada & ADR/RID Europe: Not regulated.
IMDG/IMO: Not regulated.
IATA: Not regulated.


OSHA Hazards
: No known OSHA hazards
SARA 302: No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302.
SARA 313: This material does not contain any chemical components with known CAS numbers that exceed the threshold (De Minimis) reporting levels established by SARA Title III, Section 313.
SARA 311/312 Hazards: No SARA Hazards.
California Prop. 65 Components: This product does not contain any chemicals known to State of California to cause cancer, birth defects, or any other reproductive harm.


Our company provides this Magnesium Oxide MSDS information sheet contained herein in good faith but makes no representation as to its comprehensiveness or accuracy. This Magnesium Oxide SDS 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.