International Chemical Safety Cards

PERCHLORIC ACID, POTASSIUM SALT ICSC: 0714

PERCHLORIC ACID, POTASSIUM SALT
Potassium perchlorate
Potassium hyperchlorate
Peroidin
KClO4
Molecular mass: 138.5
CAS # 7778-74-7
RTECS # SC9700000
ICSC # 0714
UN # 1489
EC # 017-008-00-5
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames, NO sparks, and NO smoking. NO contact with metal powders, combustible and flammable materials.
Water in large amounts, water spray.
EXPLOSION
Do NOT expose to friction or shock.
In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.
 
EXPOSURE
PREVENT DISPERSION OF DUST! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!

INHALATION Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
SKIN Redness.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
EYES Redness. Pain.
Safety goggles or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Wash away spilled liquid with plenty of water. Sweep spilled substance into sealable containers. Do NOT absorb in saw-dust or other combustible absorbents (extra personal protection: P2 filter respirator for harmful particles).
Fireproof. Separated from combustible and reducing substances (see Chemical Dangers). Cool. Dry.

O symbol
Xn symbol
R: 9-22
S: 2-13-22-27
UN Hazard Class: 5.1
UN Packing Group: II
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0714 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

PERCHLORIC ACID, POTASSIUM SALT ICSC: 0714

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PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS OR WHITE CRYSTALLINE POWDER.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes (chlorine, chloroxides). Reacts violently with metal powders, combustible, organic or other oxidizable materials causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly by dispersing.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the blood: mathaemoglobinia (see Notes).
PHYSICAL
PROPERTIES
 Melting point (decomposes): 400°C
Relative density (water = 1): 2.52
 Solubility in water, g/100 ml at 20°C: 18
ENVIRONMENTAL
DATA
NOTES
Will turn shock-sensitive if contaminated with organic substances. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Rinse contaminated clothes (fire hazard) with plenty of water.
Transport Emergency Card: TEC (R)-811
NFPA Code: H 1; F 0; R 2;
ADDITIONAL INFORMATION


ICSC: 0714 PERCHLORIC ACID, POTASSIUM SALT
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.