P.O. Box 489 No.: MSDS-3

Florida, NY 10921 Date Revised: January 17, 2007




1. Product Identification


Trade Name: Refractory Sheet Products

Chemical Name:






Refractory Sheet Suspension in Dilute Phosphoric Acid

Molecular Formula: Al2O3 H3PO4




2. Composition / Information on Ingredients




Molecular Weight

CAS Number

Aluminum Oxide




Phosphoric Acid






% by Weight







OSHA PEL as 8 hr TWA

15/5 mg/m3 Total dust/Respirable Fraction


10 mg/m3 Inhalable particulate with no asbestos and <1% crystalline silica

Canadian PEL as TWA

5 mg/m3

Carcinogenicity by ACGIH

Group A4, Not classifiable as a human carcinogen



OSHA PEL as 8 hr TWA

1 mg/m3 TWA


1 mg/m3 TLV

3 mg/m3 STEL



3. Hazard Identification

TARGET ORGANS: Skin, eyes, and lungs.

Emergency Overview

CAUTION: Handling or machining of these products may produce respirable dust particles. Dust may irritate eyes, skin respiratory tract.


Dust may cause irritation or soreness of throat and nose.

Eye Contact

Dust may cause temporary irritation or inflammation.

Skin Contact

May cause temporary dryness, irritation or rash.


Ingestion is unlikely. May cause gastrointestinal disturbances. Never induce vomiting without the advice of a physician.

Medical Conditions Aggravated by Exposure: Respiratory effects may be aggravated by smoking. Pre-existing respiratory problems may be aggravated by dust.



4. First Aid Measures


Inhalation: Remove to fresh air. Rinse mouth to clear throat and expel liquid. Blow nose to evacuate dust. Consult a physician if irritation persists.

Eye Contact: Do not rub eyes. Keep hands or contaminated body parts away from eyes. Remove contact lenses. Flush with water. If irritation persists, consult a physician.

Skin Contact: Wash with soap and water. For dryness, a skin cream may be helpful. Do not apply anything to a rash. Consult a physician if irritation persists.

Ingestion: Do not induce vomiting without advice of a physician. Seek medical attention.

Note to Physicians: Aluminum Oxide dusts have caused no known systemic or pathological problems. The material is inert in the body. Some individuals may experience allergic sensitivity reactions. These are generally limited to mild occupational dermatitis. Chronic inhalation may result in pleural plaques not associated with cancers. Other effects principally derived from physical abrasion.

These products contain a small percentage of amorphous silica, however, not in sufficient quantity to produce free crystalline silica upon heating. Dusts are therefore considered of the inert (nuisance) type and would not be expected to cause permanent damage to tissues on inhalation unless the exposure is severe. Chronic exposure may produce radioplaque deposits in the pulmonary system with little or no parenchymal reactions. Some individuals may exhibit allergenic reactions ranging from asthmatic symptoms to benign pneumoconiosis.

Product as shipped can cause irritation to exposed tissue. Prolonged contact can cause local irritation or burns to exposed tissue. Phosphoric acid is slightly toxic with repeated inhalation or ingestion.

As shipped, this product is a corrosive liquid (contains phosphoric acid). The major hazard is from direct physical contact or ingestion, unless a mist is somehow evolved into the air. If exposed areas are flushed promptly and thoroughly with water, there should be not ill effects. Appropriate personal protective equipment should be worn when applying this product.


5. Fire Fighting Measures


Materials are not combustible.

Unusual Fire or Explosion hazards: Thermal decompositon of phosphoric acid may emit irritating phosphoric oxide fumes.

Special Fire-Fighting Prodedures: Wear full protective equipment and self-contained breathing apparatus.


6. Accidental Release Measures


Spill Procedures: Clean up procedures should minimize formation of airborne dusts. Remove dust by vacuuming using HEPA filtration where possible. Liquid products (groups 3 & 4) should be cleaned up with sponge, mop or cloth. Contain and neutralize liquid, then flush with water.

Release into Air: Prevent release of airborne particulates where possible. Not a regulated hazardous substance. See section 8 for appropriate engineering controls.

Release into Water: Release into water is not appropriate. Not a regulated hazardous substance. Landfill dusts and debris consistent with local regulations.


7. Handling and Storage


Storage: These materials are stable and may be stored indefinitely. Physical abrasion may produce small amounts of respirable dusts. Liquid and moist products (groups 4, 5, 7 and 8) should be stored in a sealed container. See precautions under section 8.

Normal Use: Materials are stable under normal use and are not expected to produce significant hazardous by-products or emissions.

Machining and Cutting: These materials may produce respirable and nuisance dusts when machined or cut. See section 8 for exposure controls and personal protection during machining or installation procedures.

High Temperature Conditions: Service significantly above the product design temperature may increase friability and the possibility of generating airborne fibers or particulates. While not considered problematic during use, airborne fibers may complicate removal activities. It is recommended that product use be carefully matched to design parameters.

After Service: Product removal must consider the possibility of usage above design temperatures. See section 8 for appropriate respiratory protection during removal.



8. Exposure Controls


Engineering Controls:

Use dust suppression controls. Local exhaust ventilation, point of generation dust collection, and/or down-draft work stations to minimize airborne dust generation are recommended when machining product.


Respiratory Protection:

Use appropriate protection pursuant to OSHA 29CFR 1910.134 and 29CFR 1926.103. The following information is provided as a guide and reflects industry recommendations for control of dust.

PPE Other

Work clothes should be washed separately and the washing machine rinsed following use. If possible, do not take work clothes home following machining or removal activities that produce significant amounts of dust.

Skin Protection

Wear gloves, head coverings, and full body clothing to prevent skin irritation. Disposable clothing may be used. Store work clothes and street clothes separately.

Eye Protection

Wear safety glasses or chemical goggles to prevent eye contact. Do not wear contact lenses without goggles. Do not get dust or liquids into eyes. Have eye washing facilities available when using products.

These products are generally not hazardous during normal use. These guidelines are provided for special circumstances involved in machining , use and or after service removals.

See section 7 for after service and section 13 for disposal recommendations.


9. Physical/Chemical Properties





Solubility in H2O

Clear liquid with settle solids (white milky liquid when mixed)



Insoluble (dried)


S. G. (g/cc)

Melting Point

Vapor Pressure

% Volatile





68-75 wt. % H2O



10. Stability and Reactivity


Stability: Materials are stable.

Chemical Incompatibilities: Powerful oxidizers; fluorine, chlorine trifluoride, manganese trioxide, oxygen difluoride, etc. Avoid contact with active metals such as mild steel and aluminum.

Hazardous Decomposition Products: none.


11. Toxicology


Epidemiology: N/A

Toxicology: N/A


12. Ecological Information


Ecotoxicological Information: No information available.

Distribution: Aluminum oxide and silica are naturally occurring and are widely distributed in igneous rock. Secondary deposits in sedimentary rock may be found.

Chemical Fate Information: The relative inertness of this material indicate that it may be highly persistent in the environment. No information regarding any negative effects of this persistence has been noted.


13. Disposal Information


Disposal: Consult with local, state and federal regulations. In most cases these materials may be landfilled safely.

Hazardous Waste Classification: Not listed as a RCRA Hazardous waste (40 CFR 261.31). Not listed under SARA, CERCLA, or the Clean Air Act.

Empty Containers: Empty containers may contain product dust or residue. Do not re-use.

Disposal regulations vary. Consult with all applicable regulations prior to disposal.


14. Transportation Information


Not regulated hazardous substances, no specific regulations apply.



15. Regulatory Information



SARA Note:

The listed substance requires reporting under Section 313 of SARA Title III of the Emergency Planning and Community Right to Know Act, annually if above the de Minimus Concentration and threshold quantity: Phosphoric acid (CAS no. 7664-38-2), 9-12 wt.%.

WHMIS status:

Phosphoric acid (CAS no. 7664-38-2) and Aluminum oxide (CAS no. 1344-28-1) are subject to Disclosure under the Hazardous Products Act.



16. Other


The information contained herein is based on data considered to be accurate as of the preparation or revision date. It is provided in good faith and in compliance with state and federal regulations. No warranty or representation, express or implied is made as to the accuracy or completeness of this information. Other national, state and/or local regulations may apply.