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Material Safety Data Sheet

Thorium AA Standard MSDS

Section 1: Chemical Product and Company Identification

Product Name: Thorium AA Standard Contact Information:

Catalog Codes: SLT2146 Sciencelab.com, Inc.
14025 Smith Rd.
CAS#: Mixture. Houston, Texas 77396
RTECS: Not applicable. US Sales: 1-800-901-7247
International Sales: 1-281-441-4400
TSCA: TSCA 8(b) inventory: Thorium; Nitric acid, 70%;
Water Order Online: ScienceLab.com

CI#: Not applicable. CHEMTREC (24HR Emergency Telephone), call:

1-800-424-9300
Synonym:
International CHEMTREC, call: 1-703-527-3887
Chemical Name: Not applicable.
For non-emergency assistance, call: 1-281-441-4400
Chemical Formula: Not applicable.

Section 2: Composition and Information on Ingredients

Composition:

Name CAS # % by Weight

Thorium 7440-29-1 0.1
Water 7732-18-5 92.9
Nitric acid, fuming 7697-37-2 7

Toxicological Data on Ingredients: Thorium LD50: Not available. LC50: Not available. Nitric acid, fuming: VAPOR (LC50):
Acute: 67 ppm 4 hour(s) [Rat].

Section 3: Hazards Identification

Potential Acute Health Effects:

Very hazardous in case of skin contact (corrosive, irritant, permeator), of eye contact (irritant), of ingestion, of inhalation.
Liquid or spray mist may produce tissue damage particularly on mucous membranes of eyes, mouth and respiratory tract. Skin
contact may produce burns. Inhalation of the spray mist may produce severe irritation of respiratory tract, characterized by
coughing, choking, or shortness of breath. Severe over-exposure can result in death. Inflammation of the eye is characterized
by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening, or, occasionally, blistering.
Potential Chronic Health Effects:
Very hazardous in case of skin contact (corrosive, irritant, permeator), of eye contact (irritant), of ingestion, of inhalation.
Non-sensitizer for skin. CARCINOGENIC EFFECTS: Not available. MUTAGENIC EFFECTS: Not available. TERATOGENIC

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EFFECTS: Not available. DEVELOPMENTAL TOXICITY: Not available. The substance is toxic to lungs, mucous membranes.
Repeated or prolonged exposure to the substance can produce target organs damage. Repeated or prolonged contact
with spray mist may produce chronic eye irritation and severe skin irritation. Repeated or prolonged exposure to spray mist
may produce respiratory tract irritation leading to frequent attacks of bronchial infection. Repeated exposure to an highly
toxic material may produce general deterioration of health by an accumulation in one or many human organs. Repeated or
prolonged inhalation of vapors may lead to chronic respiratory irritation.

Section 4: First Aid Measures

Eye Contact:
Check for and remove any contact lenses. Immediately flush eyes with running water for at least 15 minutes, keeping eyelids
open. Cold water may be used. Do not use an eye ointment. Seek medical attention.
Skin Contact:
If the chemical got onto the clothed portion of the body, remove the contaminated clothes as quickly as possible, protecting
your own hands and body. Place the victim under a deluge shower. If the chemical got on the victim's exposed skin, such
as the hands : Gently and thoroughly wash the contaminated skin with running water and non-abrasive soap. Be particularly
careful to clean folds, crevices, creases and groin. Cold water may be used. If irritation persists, seek medical attention. Wash
contaminated clothing before reusing.
Serious Skin Contact:
Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate medical
attention.
Inhalation: Allow the victim to rest in a well ventilated area. Seek immediate medical attention.
Serious Inhalation:
Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or waistband. If
breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth resuscitation. WARNING: It may
be hazardous to the person providing aid to give mouth-to-mouth resuscitation when the inhaled material is toxic, infectious or
corrosive. Seek immediate medical attention.
Ingestion:
Do not induce vomiting. Examine the lips and mouth to ascertain whether the tissues are damaged, a possible indication that
the toxic material was ingested; the absence of such signs, however, is not conclusive. Loosen tight clothing such as a collar,
tie, belt or waistband. If the victim is not breathing, perform mouth-to-mouth resuscitation. Seek immediate medical attention.
Serious Ingestion: Not available.

Section 5: Fire and Explosion Data

Flammability of the Product: Non-flammable.

Auto-Ignition Temperature: Not applicable.
Flash Points: Not applicable.
Flammable Limits: Not applicable.
Products of Combustion: Not available.
Fire Hazards in Presence of Various Substances: Not applicable.
Explosion Hazards in Presence of Various Substances:
Risks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in
presence of static discharge: Not available. Slightly explosive to explosive in presence of reducing materials, of combustible
materials, of organic materials.
Fire Fighting Media and Instructions: Not applicable.
Special Remarks on Fire Hazards: Not available.
Special Remarks on Explosion Hazards: Not available.

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 Section 6: Accidental Release Measures

Small Spill:
Dilute with water and mop up, or absorb with an inert dry material and place in an appropriate waste disposal container. If
necessary: Neutralize the residue with a dilute solution of sodium carbonate.
Large Spill:
Corrosive liquid. Stop leak if without risk. Absorb with DRY earth, sand or other non-combustible material. Do not get water
inside container. Do not touch spilled material. Use water spray curtain to divert vapor drift. Prevent entry into sewers,
basements or confined areas; dike if needed. Call for assistance on disposal. Neutralize the residue with a dilute solution of
sodium carbonate. Be careful that the product is not present at a concentration level above TLV. Check TLV on the MSDS and
with local authorities.

Section 7: Handling and Storage

Precautions:
Keep locked up Keep container dry. Do not ingest. Do not breathe gas/fumes/ vapour/spray. Never add water to this product In
case of insufficient ventilation, wear suitable respiratory equipment If ingested, seek medical advice immediately and show the
container or the label. Avoid contact with skin and eyes Keep away from incompatibles such as metals, alkalis.
Storage: Corrosive materials should be stored in a separate safety storage cabinet or room.

Section 8: Exposure Controls/Personal Protection

Engineering Controls:
Provide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapors below their respective
threshold limit value. Ensure that eyewash stations and safety showers are proximal to the work-station location.
Personal Protection:
Face shield. Full suit. Vapor respirator. Be sure to use an approved/certified respirator or equivalent. Gloves. Boots.
Personal Protection in Case of a Large Spill:
Splash goggles. Full suit. Vapor respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid
inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this
product.
Exposure Limits:
Nitric acid, fuming TWA: 2 CEIL: 4 (ppm) TWA: 5 CEIL: 10 (mg/m3)Consult local authorities for acceptable exposure limits.

Section 9: Physical and Chemical Properties

Physical state and appearance: Liquid.

Odor: Not available.
Taste: Not available.
Molecular Weight: Not applicable.
Color: Not available.
pH (1% soln/water): Acidic.
Boiling Point: The lowest known value is 82.6C (180.7F) (Nitric acid, fuming). Weighted average: 98.78C (209.8F)
Melting Point: May start to solidify at -41.6C (-42.9F) based on data for: Nitric acid, fuming.
Critical Temperature: Not available.
Specific Gravity: Weighted average: 1.02 (Water = 1)

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Vapor Pressure:
The highest known value is 45 mm of Hg (@ 20C) (Nitric acid, fuming). Weighted average: 19.46 mm of Hg (@ 20C)
Vapor Density: The highest known value is 0.62 (Air = 1) (Water).
Volatility: Not available.
Odor Threshold: The highest known value is 0.29 ppm (Nitric acid, fuming)
Water/Oil Dist. Coeff.: Not available.
Ionicity (in Water): Not available.
Dispersion Properties: See solubility in water.
Solubility: Easily soluble in cold water.

Section 10: Stability and Reactivity Data

Stability: The product is stable.

Instability Temperature: Not available.
Conditions of Instability: Not available.
Incompatibility with various substances:
Highly reactive with metals, alkalis. Slightly reactive to reactive with reducing agents, combustible materials, organic materials,
acids.
Corrosivity: Non-corrosive in presence of glass.
Special Remarks on Reactivity: Not available.
Special Remarks on Corrosivity: Not available.
Polymerization: No.

Section 11: Toxicological Information

Routes of Entry: Dermal contact. Eye contact. Inhalation. Ingestion.

Toxicity to Animals:
WARNING: THE LC50 VALUES HEREUNDER ARE ESTIMATED ON THE BASIS OF A 4-HOUR EXPOSURE. Acute toxicity
of the vapor (LC50): 957 ppm 4 hour(s) (Rat) (Calculated value for the mixture).
Chronic Effects on Humans: The substance is toxic to lungs, mucous membranes.
Other Toxic Effects on Humans: Very hazardous in case of skin contact (corrosive, irritant, permeator), of ingestion, of
inhalation.
Special Remarks on Toxicity to Animals: Not available.
Special Remarks on Chronic Effects on Humans: Not available.
Special Remarks on other Toxic Effects on Humans: Not available.

Section 12: Ecological Information

Ecotoxicity: Not available.

BOD5 and COD: Not available.
Products of Biodegradation:
Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.

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Toxicity of the Products of Biodegradation: The products of degradation are more toxic.
Special Remarks on the Products of Biodegradation: Not available.

Section 13: Disposal Considerations

Waste Disposal:

Section 14: Transport Information

DOT Classification: CLASS 8: Corrosive liquid.

Identification: : Nitric acid, solution (Nitric acid, fuming) : UN2031 PG: II
Special Provisions for Transport: Marine Pollutant

Section 15: Other Regulatory Information

Federal and State Regulations:

California prop. 65: This product contains the following ingredients for which the State of California has found to cause
cancer, birth defects or other reproductive harm, which would require a warning under the statute: Thorium California
prop. 65: This product contains the following ingredients for which the State of California has found to cause cancer which
would require a warning under the statute: Thorium Pennsylvania RTK: Nitric acid, 70% Massachusetts RTK: Nitric acid,
70% New Jersey: Thorium TSCA 8(b) inventory: Thorium; Nitric acid, 70%; Water SARA 302/304/311/312 extremely
hazardous substances: Nitric acid, 70% SARA 313 toxic chemical notification and release reporting: Nitric acid, 70% CERCLA:
Hazardous substances.: Thorium; Nitric acid, 70%;
Other Regulations: OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200).
Other Classifications:
WHMIS (Canada):
CLASS D-1A: Material causing immediate and serious toxic effects (VERY TOXIC). CLASS D-2A: Material causing other toxic
effects (VERY TOXIC). CLASS E: Corrosive liquid.
DSCL (EEC):
R26- Very toxic by inhalation. R35- Causes severe burns.
HMIS (U.S.A.):
Health Hazard: 3
Fire Hazard: 0
Reactivity: 0
Personal Protection:
National Fire Protection Association (U.S.A.):
Health: 3
Flammability: 0
Reactivity: 0
Specific hazard:
Protective Equipment:
Gloves. Full suit. Vapor respirator. Be sure to use an approved/certified respirator or equivalent. Wear appropriate respirator
when ventilation is inadequate. Face shield.

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 Section 16: Other Information

References: Not available.

Other Special Considerations: Not available.
Created: 10/10/2005 12:04 AM
Last Updated: 05/21/2013 12:00 PM

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