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

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

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

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Magnesium Oxide
MgO Commercial Pure n FCC Food Grade
Magnesium Oxide

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 - 2000 °C 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 - 1500 °C produce hard-burned magnesia which has limited reactivity and calcining at lower temperature, (700-1000 °C) 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 700 °C, this appears rapidly reversible due to absorption of carbon dioxide from the air.

STARMgO is lightly burned high-purity magnesia that is available for a variety of uses.
STARMgO #150 is a high-active product..
STARMgO P and KS are pharmaceutical-grade products.
STARMgO KS is a granular type. It has good flow-ability and helps to improve productivity.
STARMgO 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 with a separately sealed polyethylene inner bag.

Heavy Magnesium Oxide BP Grade
Ph Eur
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 100-105 °C. 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 ---- Mol.Wt.40.30
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
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.


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Last 14 August, 2017

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

Product Name: Magnesium Oxide
CAS Number: 1309-48-4
EINECS EC Number: 215-171-9
Molecular Formula: MgO
Molecular Weight: 40.3
Recommended usage: Industrial Manufacturing.


GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008

GHS Label Elements

Labeling according GHS & Regulation (EC) No 1272/2008

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.
P303+P361+P353 - IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
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.

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.

OSHA Hazards: No known OSHA hazards.
HMIS (Perceived): Health hazard: 0, Flammability: 0, Physical hazards: 0
NFPA (Perceived): Health hazard: 0, Fire: 0, Reactivity Hazard: 0

Product Name: Magnesium Oxide
CAS Number: 1309-48-4
EINECS EC Number: 215-171-9
Molecular Formula: MgO
Molecular Weight: 40.3

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.

NFPA (Perceived): Health: 1, Fire: 0, Reactivity: 0
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 Fire fighting Procedures: Firefighters should wear full protective equipment and NIOSH approved self-contained breathing apparatus.

Steps to be taken in Case Magnesium Oxide is Released or Spilled: Avoid dust formation. Avoid breathing vapors, mist or gas. Ventilate area of leak or spill. Wear appropriate personal protective equipment. Sweep up and containerize for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal. Small amounts of residue may be flushed to sewer with plenty of water.

Keep Magnesium Oxide in a well closed container stored under cold to warm conditions, 2 to 40 C, (36 to 104F). Protect against physical damage. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.

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.
Respiratory Protection (Specify Type): None needed under normal conditions of use with adequate ventilation. NIOSH approved equipment should be worn if PELs are exceeded.
Ventilation Local Exhaust: Yes
Eye Protection: Splash proof chemical safety goggles should be worn at all times.
Other Protective Clothing or Equipment: Lab apron, eye wash, and safety shower.
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

Molecular Formula: MgO
Molecular Weight: 40.3
Appearance and Odor: Magnesium Oxide is white powder or granules, odorless.
pH: 4.5 to 8.5
Melting Point: 2852°C.
Boiling Point: 3600°C
Density: 3,58 g/cm3 at 20°C
Percent Volatile by Volume: 0 (21C)
Solubility in Water: Insoluble in water.

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, 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 probable, possible or confirmed human carcinogen by IARC, NTP, ACGIH & OSHA.
Reproductive toxicity: No data available
Teratogenicity: No data available
Mutagenicity: Not available.

Toxicity to fish: NA
Toxicity to daphnia and other aquatic invertebrates: NA
Bioaccumulative potential: NA
EPA Waste Numbers: None.

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

DOT: Not regulated.
IMDG: Not regulated.
IATA: Not regulated.
ADR/RID: 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.
Massachusetts Right To Know Components: Magnesium oxide, CAS-No. 1309-48-4
Pennsylvania Right To Know Components: Magnesium oxide, CAS-No. 1309-48-4
New Jersey Right To Know Components: Magnesium oxide, CAS-No. 1309-48-4
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.
TSCA Inventory Status: All ingredients are listed on the TSCA inventory.

Canada WHMIS: Not Listed.

EINECS EC Number: 215-171-9

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.