Material Safety Data Sheet

Manufacturer’s Name: HADCO-DENVER
Address: 1339 W. CEDAR AVE. Telephone Number: 303-765-5806
Denver, CO 80223 Date Prepared: March 20, 2004

SECTION II: Hazardous Ingredients/Identity Information
Hazardous Components CAS# OSHA PEL ACGIH TLV Other

Sodium Hydroxide 1310-73-2 2mg/m3 MAK: 2mg/m3
Sodium Metasilicate 6834-92-0

SECTION III: Physical/Chemical Characteristics
Boiling Point: N/A Specific Gravity: N/A
Vapor Pressure: NA Melting Point: NA
Vapor Density: Heavier than air Evaporation Rate: Slower than ether
Solubility in water: Complete
Appearance and Odor: White powder with mild odor.

SECTION IV: Fire and Explosion Hazard Data
Flash Point: Non-flammable solid.
Flammable Limits: NA LEL: NA UEL: NA
Extinguishing Media: Carbon dioxide, dry chemical, foam or water.
Class A, BC, or ABC fire extinguishers.
Special Fire Fighting Procedures: Water can be used to cool containers adjacent to fire
Unusual Fire and Explosion Hazards: Pressure may develop in closed containers if temperatures over 195°F are reached.

SECTION V: Reactivity Data
Stability: Stable
Conditions to Avoid: NA
Incompatibility: Strong oxidizing agents or anything reactive with water.
Hazardous Decomposition or Byproducts: Carbon dioxide and Hydrogen gas.
Hazardous Polymerization: Will not occur.
Conditions to Avoid: NA


SECTION VI: Health Hazard Data
Routes of Entry: Eye contact, Skin contact, Inhalation, and Ingestion

Effects of Overexposure
Eyes: Sodium Hydroxide is destructive to eye tissue on contact. Will cause severe burns that result in damage to eyes and even blindness.
Skin: Sodium Hydroxide is destructive to tissues contacted and produces severs burns.
Inhalation: Airborne concentrations of dust, mist, or spray of Sodium Hydroxide may cause damage to the upper respiratory tract and even to the lung tissue proper which could produce chemical pneumonia, depending upon severity of exposure.

Emergency and First Aid Procedures

Eyes: Immediately flush eyes with large amounts of water for at least 15 minutes, holding eyelids apart to ensure flushing of the entire eye surface. Washing eyes within 1 minute is essential to achieve maximum effectiveness. Seek medical attention immediately.
Skin: Immediately wash contaminated skin with plenty of water. This may be followed with a rinse with vinegar. Remove contaminated clothing and footwear and wash clothing before reuse. Discard footwear that cannot be decontaminated. Seek medical attention immediately.
Inhalation: Get person out of contaminated area to fresh air. If breathing has stopped, artificial respiration should be started. Oxygen may be administered if readily available. Seek medical attention immediately.
Ingestion: If swallowed, DO NOT induce vomiting. Give large quantities of water. If available, give several glasses of milk. Seek medical attention immediately.

SECTION VII: Precautions for Safe Handling and Use

Steps to be taken in Case Material is released or spilled: Stop leaks. Contain spill. Remove as much as possible. Neutralize remaining traces of material with dilute acid, then flush area with water followed by a liberal covering of soda ash. Place in container and store in a safe place to await proper disposal. Persons performing this work should wear adequate personal protective equipment and clothing.
Waste Disposal Method: Dispose of in accordance with all federal, state, and local regulations concerning health and pollution. Dispose of via approved chemical waste disposal method if regulations permit.

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Precautions to Be Taken in Handling and Storing: Storage between 40°F and 100°F are recommended.
Other Precautions: Do not take internally or inhale vapors. Avoid eye contact.

SECTION VIII: Control Measure
Respiratory: Not normally needed.
Local Exhaust: Preferable
Mechanical (General): Acceptable
Protective Gloves: Plastic or NBR gloves
Eye Protection: Chemical safety goggles
Other Protective Clothing or Equipment: Usually not needed unless splashing is excessive.

NI – No Information NA – Not Available