Pyridinium Tribromide Safety Data Sheet (SDS)
SDS #: 663.5
Revision Date: September 22, 2014
Pyridinium Tribromide
Flinn Scientific, Inc. P.O. Box 219, Batavia, IL 60510 (800) 452-1261 Chemtrec Emergency Phone Number: (800) 424-10201
Signal Word
DANGER
Hazard class: Skin corrosion or irritation (Category 1). Causes severe skin burns and eye damage (H314). Do not breathe dust or fumes (P260).
Hazard class: Serious eye damage or irritation (Category 1). Causes serious eye damage (H318).
Pyridinium tribromide is a solid used as a safer or "greener" alternative to elemental bromine, which is volatile, highly corrosive, and fatal if inhaled. Pyridinium tribromide exists in rapid equilibrium with bromine in solution and thus slowly releases bromine when dissolved. Treat with care and do not use with metals.
Component Name |
CAS Number |
Formula |
Formula Weight |
Concentration |
Pyridinium tribromide
|
39416-48-3 |
C5H5N-HBr-Br2 |
319.821 |
|
Immediately call a POISON CENTER or physician (P310). If inhaled: Remove victim to fresh air and keep at rest in a position comfortable for breathing (P304+P340). If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing (P305+P351+P338). If on skin or hair: Immediately remove all contaminated clothing. Rinse skin with water (P303+P361+P353). Wash contaminated clothing before reuse (P363). If swallowed: Rinse mouth. Do NOT induce vomiting (P301+P330+P331).
Nonflammable, noncombustible solid. When heated to decomposition, may emit toxic fumes. In case of fire: Use a tri-class dry chemical fire extinguisher.
NFPA Code
None established
Do not allow solid to become airborne. Wipe up dust with a damp paper towel to avoid generating dust. Place in a sealed bag or container and dispose. Wash spill site after material pickup is complete. See Sections 8 and 13 for further information.
Flinn Suggested Chemical Storage Pattern: Inorganic #2. Store with acetates, halides, sulfates, sulfites, and halogens. Store in a cool, dry place. Do not use aluminum or galvanized containers.
Wear protective gloves, protective clothing, and eye protection (P280). Wash thoroughly after handling (P264).
Yellow to deep yellow red crystalline powder. Odorless. Soluble in glacial acetic acid, ethyl alcohol, and related solvents. Slightly soluble in water.
Melting point: 130 °C (decomposes)
Do not use with aluminum, mild steel or galvanized containers. Reacts with strong bases and strong oxidizing agents. Shelf life: Fair, store in a cool, dry place.
Acute effects: Lachrymator. Serious eye damage and skin burns. Mucous membrane irritation and possible tissue corrosion. Chronic effects: Erosion of teeth, ulceration of mouth lining. Asthma-like symptoms Target organs: Eyes, skin, respiratory system, mouth, teeth.
ORL-RAT LD50: N.A. IHL-RAT LC50: N.A. SKN-RBT LD50: N.A.
Toxic to aquatic organisms.
Please review all federal, state and local regulations that may apply before proceeding. Flinn Suggested Disposal Method #26c is one option.
Shipping name: Pyridinium tribromide. Hazard class: 8. UN number: UN3261.
This Safety Data Sheet (SDS) is for guidance and is based upon information and tests believed to be reliable. Flinn Scientific, Inc. makes no guarantee of the accuracy or
completeness of the data and shall not be liable for any damages relating thereto. The data is offered solely for your consideration, investigation, and verification. The
data should not be confused with local, state, federal or insurance mandates, regulations, or requirements and CONSTITUTE NO WARRANTY. Any use of this data and
information must be determined by the science instructor to be in accordance with applicable local, state or federal laws and regulations. The conditions or methods of
handling, storage, use and disposal of the product(s) described are beyond the control of Flinn Scientific, Inc. and may be beyond our knowledge. FOR THIS AND OTHER
REASONS, WE DO NOT ASSUME RESPONSIBILITY AND EXPRESSLY DISCLAIM LIABILITY FOR LOSS, DAMAGE OR EXPENSE ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE HANDLING, STORAGE, USE OR DISPOSAL OF THIS PRODUCT(S).
Consult your copy of the Flinn Science Catalog/Reference Manual for additional information about laboratory chemicals.
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