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MSDS Material Safety Data Sheet
CAS

7440-09-7

File Name: 7440-09-7.asp

                                         MATERIAL SAFETY DATA SHEET



I PRODUCT IDENTIFICATION

Trade Name: Potassium Formula: K
CAS #: 7440-09-7


II HAZARDOUS INGREDIENTS

TSCA: Listed in the TSCA inventory ACGIH (TLV): No data OSHA PEL: No data %: 100

Component subject to reporting of the section 313 of the Emergency Planning and Community Right-to-Know Act: No Data
Title Compound: Not listed.


III PHYSICAL DATA

760 oC 63.7 oC
Boiling Point: Melting Point:
Specific Gravity: 0.86 Solubility in H2O: Reacts violently with water
.0899 mm (245 oC)
Vapor Pressure: Color and Form: Under argon


IV FIRE AND EXPLOSION HAZARDS DATA

Flash Point (Method used): No data Autoignition Temperature: N/A

Special Fire Fighting Procedures: Highly flammable. Material readily ignited with flame, sparks, friction or heat. Burning material
may release toxic and corrosive fumes. Leave the area unless fitted with a self-contained breathing apparatus and fire protective
clothing.

Unusual Fire and Explosion Hazard: Pyrophoric material. Material may ignite spontaneously on contact with air.


V HEALTH HAZARD INFORMATION

Effects of Over Exposure: Intraperitoneal (mouse): LD50: 700 mg/kg. Details not reported. Contact with skin can cause severe
chemical burns.

Mode of Entry: Inhalation: No Skin: Yes Ingestion: Yes
Carcinogenicity: NTP: No IARC: No OSHA: No

EMERGENCY AND FIRST AID PROCEDURES:

EYES: In case of eye contact immediately flush the eyes with water for at least 15 minutes.
SKIN: In case of skin contact wash affected area with soap and water for at least 5 minutes.
INHALATION: If inhaled remove victim to fresh air and seek medical attention if coughing, shortness of breath or irritation
persists.
INGESTION: If ingested give victim plenty of water and seek immediate medical assistance.
VI REACTIVITY DATA

Stability: Air sensitive, moisture sensitive.
Incompatibility (Material to Avoid): Water, air, oxidizers, halogens, sulfur, phosphorus, carbon, alcohols, halogenated hydrocar-
bons, carbonyl compounds and carbon dioxide.

Hazardous Decomposition Products: Potassium oxide and potassium superoxide.
Hazardous Polymerization: No hazardous polymerization.


VII SPILL OR LEAK PROCEDURES

Steps to be Taken in Case Material is Released or Spilled: The material will ignite spontaneously in air. Burning material may
release toxic fumes. Leave the area unless fitted with a self-contained breathing apparatus. Smother fire with dry powder. Do not use
water.

Waste Disposal Method: Material should be disposed of in accordance with local, state and federal regulations.


VIII SPECIAL PROTECTION INFORMATION

Respiratory Protection (Specify Type): No special respiration equipment required.

Ventilation: Local Exhaust: Yes Other: No
Protective Gloves: Yes Eye Protection: Yes

Other Protective Equipment: Wear a full face shield, lab apron and suitable gloves.


IX SPECIAL PRECAUTIONS

Other Handling and Storage Conditions: Handle and store the material under an inert atmosphere of nitrogen or argon. Keep away
from heat.

The material will react with air and moisture. Prolonged contact with air may result in the formation of potassium superox-
ide, a potentially explosive compound.


Prepared by: S. Dierks
Dated: March 1995

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