RUST - B - GONE
MATERIAL SAFETY DATA SHEET MSDS NO. 239-1
May be used to comply with OSHA's Hazard Communication Standard,
29CFR 1910. 1200. Standard must be consulted for specific requirements.
Important: Do not leave any blank spaces. If required information is unavailable, unknown, or doesn't apply, so indicate.
*N/A=No information available *N/AP=Not Applicable
Section 1 - Company and Chemical Identification
DAYCON PRODUCTS COMPANY, INC. EMERGENCY PHONE: 800-535-5053
16001 TRADE ZONE AVENUE PHONE: 301-218-7100
UPPER MARLBORO, MD 20774 DATE: MAY 7, 2001
PRODUCT USE: RUST STAINS FROM CARPET, GROUT, STONE AND CONCRETE
Section 2 - Hazardous Ingredients/Identity
Hazardous Component(s) (chemical & common name) OSHA ACGIH Other Exposure % CAS
PEL TLV Limits (optional) No.
Surfactant Blend N/A N/A N/A N/A
Ammonium Bifluoride 2.5mg/m3 TWA 2.5 mg/m3 TWA 10 1341-49-7
Oxalic Acid 144-62-7
Note: A biproduct of mixing ammonium bifluoride with water is hydrofluoric acid. Even small amounts,
hydofluoric acid may have devastating health effects. It may cause central nervous system, kidney, and
cardiovascular effects. Respiratory paralysis may cause death. Swallowing or absorbtion through the skin may
cause hypocalcemia and hypomagnesia. Effects are often delayed and may be a result of coming in contact with a
solution as dilute as 1% hydrofluoric acid.
NPCA-HMIS Rating: Health - 3 Flammability - 0 Reactivity - 0 PPE - X
Section 3 - Health Hazard Identification
Acute: Chronic:
Severe irritation or burns of eyes, skin, respiratory tract. Possible fluoride poisoning. Symptoms may be delayed.
Signs and Symptoms of Exposure:
Mottling of teeth, burns, damage to bones - include brittle bones, weight loss, anemia, calcified ligaments and joint stiffness.
Medical Conditions Generally Aggravated by Exposure:
Diabetes and chronic kidney disorders.
Chemical Listed as Carcinogen National Toxicology Yes I.A.R.C Yes OSHA Yes
or Potential Carcinogen Program No X No X No X
Section 4 - First Aid Measures
Routes of Entry and Emergency/First Aid Procedures
1. Inhalation:
Remove to fresh air. Restore breathing if necessary. Get immediate medical attention.
2. Eyes:
Immediately flush with water for 15 minutes. Get immediate medical attention.
3. Skin:
Immediately wash with water for 15 minutes. Remove contaminated clothing. Get immediate medical attention. Apply calcium
gluconate gel or soak in calcium gluconate solution.
4. Ingestion:
DO NOT INDUCE VOMITING. Get
If conscious, give milk, chewable calcium carbonate tablets or milk of magnesia.
immediate medical attention.
Section 5 - Fire Fighting Measures & Data
Flash Point Method Used Flammable Limits LEL UEL
in Air % by Volume Lower Upper
None N/AP None None
Rust - B - Gone MSDS 239-1 1
Auto-Ignition Temperature: Extinguisher Media:
N/AP Consider the media of the surrounding fire.
Special Fire Fighting Procedures:
Wear Self Contained Breathing Apparatus, impermeable clothing, and avoid all contact. Cool containers
with water.
Unusual Fire and Explosion Hazards:
Contact with alkalies and flames may cause buildup of flammable hydrogen gas. Toxic fumes are emitted
during fire.
DOT Hazard Classification:
Ammonium hydrogen difluoride, solution, 8, UN2817, II
Section 6 - Accidental Release Measures
Steps to be Taken in Case Material is Released or Spilled:
Avoid personal contact. Wear impermeable clothing, safety goggles and gloves. Dike area. Collect into
appropriate containers with absorbent. Wash spill area.
Waste Disposal Methods (Consult federal, state, and local regulations):
Discard through a licensed wasted treatment facility.
Section 7 - Special Precautions, Handling, and Storage
Precautions to be Taken in Handling and Storage:
AVOID Personal Contact. Wear appropriate Personal Protective Equipment (PPE)
Other Precautions:
Work only where there is accessibility to an eyewash station and shower. Do not allow unprotected
personnel near product or effluent.
Section 8 - Special Protection Information/Control Measures
Respiratory Protection (Specify Type):
Wear a NIOSH approved full facepiece particulate respirator.
Ventilation: Local Exhaust: Mechanical (General) : Special: Other:
Required
Protective Gloves: Eye Protection:
Impervious rubber or neoprene Splash proof safety goggles and face shield
Other Protective Clothing or Equipment:
Splashproof safety suit, eyewash, safety shower.
Work/Hygienic Practices:
Wash all PPE after use. Wash hands thoroughly before eating, drinking or smoking.
Section 9 - Physical & Chemical Characteristics
Boiling Point: Specific Gravity (H2O): Vapor Pressure (mm Hg); Vapor Density (Air =
1): N/A 1.04 N/A N/A
Solubility in Water : Reactivity in Water:
Complete Nil
Appearance and Odor: Melting Point:
Clear liquid N/AP
Rust - B - Gone MSDS 239-1 2
Section 10 - Stability and Reactivity
Stability: Unstable Stable Conditions to Avoid:
X Contact with metals and alkalies
Incompatibility (Materials to Avoid):
Acids, alkalies, caustics, sulfides, sulfur oxides and ammonia
Hazardous Decomposition Products:
Thermal decomposition yields toxic hydrogen fume, nitric oxides, amonia
Hazardous Polymerization: May Occur Will Not Occur Conditions to Avoid:
X N/AP
Rust - B - Gone MSDS 239-1 3
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