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MSDS 
:
 Potassium periodate (meta), 99+% (titr.)
CAS 
:
 7790-21-8
SYNONYMS 
:
 Potassium iodate
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 7790-21-8 |Periodic acid (HIO4), potassium salt | 100.00 | 232-196-0 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XI O
Risk Phrases: 36/37/38 8

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin. Contact with
combustible material may cause fire.The toxicological properties of
this material have not been fully investigated.Hygroscopic (absorbs
moisture from the air).Oxidizer.

Potential Health Effects
Eye:
Causes eye irritation. May cause conjunctivitis. May cause
permanent corneal opacification.
Skin:
Causes skin irritation. Causes redness and pain.
Ingestion:
May cause irritation of the digestive tract. The toxicological
properties of this substance have not been fully investigated. May
cause burns to the gastrointestinal tract. May cause nausea,
vomiting, and diarrhea, possibly with blood.
Inhalation:
Causes respiratory tract irritation. The toxicological properties of
this substance have not been fully investigated. Causes irritation of
mucous membrane. May cause acute pulmonary edema, asphyxia, chemical
pneumonitis, and upper airway obstruction caused by edema.
Chronic:
Effects may be delayed.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes. Wash clothing
before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical
aid immediately. Do NOT induce vomiting. If conscious and alert,
rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
Antidote:
None reported.

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Strong oxidizer. Contact with other material may
cause fire. During a fire, irritating and highly toxic gases may be
generated by thermal decomposition or combustion. Use water with
caution and in flooding amounts. Decomposes at high temperatures
releasing oxygen which may cause an existing fire to burn more
vigorously. Some oxidizers may react explosively with
hydrocarbons(fuel). May accelerate burning if involved in a fire.
Containers may explode when heated.
Extinguishing Media:
Contact professional fire-fighters immediately. Cool containers with
flooding quantities of water until well after fire is out. For small
fires, do NOT use dry chemicals, carbon dioxide, halon or foams.
USE WATER ONLY. For large fires flood fire with water from a
distance.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective
Equipment section. Sweep up, then place into a suitable container for
disposal. Avoid generating dusty conditions. Remove all sources of
ignition. Provide ventilation. Do not use combustible materials such
as paper towels to clean up spill.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use only in a well-ventilated area. Minimize dust
generation and accumulation. Avoid breathing dust, vapor, mist, or
gas. Keep container tightly closed. Avoid contact with clothing and
other combustible materials. Do not get on skin or in eyes. Avoid
ingestion and inhalation.
Storage:
Keep away from heat, sparks, and flame. Do not store near
combustible materials. Store in a cool, dry, well-ventilated area
away from incompatible substances. Keep away from reducing agents.
Heat can cause thermal decomposition and pressure build-up inside
containers. Keep containers tightly closed. Store protected from
moisture.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate
ventilation to keep airborne concentrations low.
Exposure Limits
CAS# 7790-21-8:


Personal Protective Equipment

Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear a chemical apron. Wear appropriate protective
clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Always use
a NIOSH or European Standard EN 149 approved
respirator when necessary.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Powder
Color: white
Odor: odorless
pH: Not available.
Vapor Pressure: Negligible.
Viscosity: Not applicable.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 582 deg C
Solubility in water: Soluble in water.
Specific Gravity/Density: 3.618 at 15C
Molecular Formula: KIO4
Molecular Weight: 230.0004

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
High temperatures, incompatible materials, ignition sources, dust
generation, combustible materials, reducing agents, exposure to moist
air or water.
Incompatibilities with Other Materials:
Moisture.
Hazardous Decomposition Products:
Hydrogen iodide, oxygen, oxides of potassium, iodide ions (I-).
Hazardous Polymerization: Will not occur.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 7790-21-8 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Periodic acid (HIO4), potassium salt -
Not listed by ACGIH, IARC, or NTP.

**** SECTION 12 - ECOLOGICAL INFORMATION ****



**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: .
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI O
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 17 Keep away from combustible material.
S 24/25 Avoid contact with skin and eyes.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37/39 Wear suitable gloves and eye/face
protection.
WGK (Water Danger/Protection)
CAS# 7790-21-8: 1
Canada
CAS# 7790-21-8 is listed on Canada's DSL List.
CAS# 7790-21-8 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7790-21-8 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 1/25/1999 Revision #4 Date: 3/18/2003

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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