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MSDS 
:
 Hydriodic Acid, 57 Wt.% Aq. Solution, Distilled, Unstabilized
CAS 
:
 7732-18-5
SYNONYMS 
:
 Hydrogen Iodide
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 7732-18-5 |Water | Balance | 231-791-2 |
|----------------|--------------------------------------|----------|-----------|
| 10034-85-2 |Hydriodic Acid | 57 | 233-109-9 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: C
Risk Phrases: 35

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

EMERGENCY OVERVIEW
Causes severe burns.Light sensitive.Air sensitive.Corrosive.

Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes
gastrointestinal tract burns.
Inhalation:
May cause irritation of the respiratory tract with burning pain in
the nose and throat, coughing, wheezing, shortness of breath and
pulmonary edema. Causes chemical burns to the respiratory tract.
Inhalation may be fatal as a result of spasm, inflammation, edema of
the larynx and bronchi, chemical pneumonitis and pulmonary edema.
Chronic:
No information found.

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

Eyes:
Get medical aid immediately. Do NOT allow victim to rub or keep eyes
closed. Extensive irrigation with water is required (at least 30
minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
soap and water for at least 15 minutes while removing contaminated
clothing and shoes. Wash clothing before reuse. Destroy contaminated
shoes.
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure to fresh air
immediately. If breathing is difficult, give oxygen. Do NOT use
mouth-to-mouth resuscitation. If breathing has ceased apply
artificial respiration using oxygen and a suitable mechanical device
such as a bag and a mask.
Notes to Physician:

**** 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. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion. Use water
spray to keep fire-exposed containers cool. Substance is
noncombustible. Vapors may be heavier than air. They can spread
along the ground and collect in low or confined areas. Containers may
explode when heated.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to
extinguish surrounding fire. Do NOT get water inside containers. For
large fires, use water spray, fog or regular foam. Cool containers
with flooding quantities of water until well after fire is out. For
small fires, use dry chemical or carbon dioxide. Contact with water
or steam may produce toxic and flammable vapors.

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

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Avoid runoff into storm sewers and
ditches which lead to waterways. Clean up spills immediately,
observing precautions in the Protective Equipment section. Neutralize
spill with sodium bicarbonate. Provide ventilation. Spill may be
neutralized with lime.

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

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Do not get on skin and clothing. Keep container
tightly closed. Do not ingest or inhale. Use with adequate
ventilation. Store protected from light. Discard contaminated shoes.
Storage:
Keep container closed when not in use. Store in a cool, dry,
well-ventilated area away from incompatible substances. Corrosives
area. Keep refrigerated. (Store below 4C/39F.) Store protected
from light.

**** 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.
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 appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29CFR
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: Liquid
Appearance: colorless to yellow brown
Odor: sharp odor, unpleasant odor
pH: ~1.0
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 127 deg C @ 760.0
Freezing/Melting Point: 133-135 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: soluble
Specific Gravity/Density: 1.7010g/cm3
Molecular Formula: HI
Molecular Weight: 127.91

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

Chemical Stability:
Stable. May discolor on exposure to light.
Conditions to Avoid:
Incompatible materials, light, exposure to air, excess heat.
Incompatibilities with Other Materials:
Explodes on contact with ethyl hydroperoxide, ignites on contact with
with magnesium, perchloric acid, potassium + heat, potassium chlorate
+ heat, and oxidants, violent reaction with HCLO4 + Mg, O3, metals,
potentially violent reaction with phosphorous.
Hazardous Decomposition Products:
Hydrogen iodide, iodine.
Hazardous Polymerization: Will not occur.

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

RTECS#:
CAS# 7732-18-5: ZC0110000
CAS# 10034-85-2 unlisted.
LD50/LC50:
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 10034-85-2.
Carcinogenicity:
Water -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Hydriodic Acid -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
See actual entry in RTECS for complete information.

**** 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: HYDRIODIC ACID
Hazard Class: 8
UN Number: 1787
Packing Group: II
IMO
Shipping Name: HYDRIODIC ACID SOLUTION
Hazard Class: 8
UN Number: 1787
Packing Group: II
RID/ADR
Shipping Name: HYDRIODIC ACID
Dangerous Goods Code: 8(5B)
UN Number: 1787

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

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 35 Causes severe burns.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 7732-18-5: No information available.
CAS# 10034-85-2: 1
United Kingdom Occupational Exposure Limits

Canada
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 10034-85-2 is listed on Canada's DSL List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
CAS# 10034-85-2 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 10034-85-2: Not available.
US FEDERAL
TSCA
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 10034-85-2 is listed on the TSCA inventory.

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

MSDS Creation Date: 4/07/1999 Revision #1 Date: 8/02/2000

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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