MSDS Name:   Phosphorus Pentoxide
Synonym:   Diphosphorus Pentoxide; Phosphoric Anhydride; Phosphorus (V) Oxide; POX
Company:   AboutChem.com

**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 1314-56-3 |Diphosphorus pentoxide | 100% | 215-236-1 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: C
Risk Phrases: 35

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

EMERGENCY OVERVIEW
Causes severe burns.Corrosive.Water-reactive.Hygroscopic (absorbs
moisture from the air).

Potential Health Effects
Eye:
Causes eye burns. May cause irreversible eye injury.
Skin:
Causes severe skin irritation and burns.
Ingestion:
Causes gastrointestinal tract burns. Causes severe pain, nausea,
vomiting, diarrhea, and shock.
Inhalation:
May cause severe irritation of the respiratory tract with sore
throat, coughing, shortness of breath and delayed lung edema. Causes
chemical burns to the respiratory tract. May cause pulmonary edema
and severe respiratory disturbances. Harmful if inhaled.
Chronic:
Early symptoms of chronic phosphorous intoxication include
gastrointestinal distress and possibly a garlic-like odor to the
breath. Chronic exposure can lead to necrosis of the jaw, or
'phossy-jaw'.

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

Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately. Do NOT allow victim to rub eyes 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
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:
Remove from exposure and move to fresh air immediately. If breathing
is difficult, give oxygen. Get medical aid. If breathing has ceased
apply artificial respiration using oxygen and a suitable mechanical
device such as a bag and a mask.
Notes to Physician:
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. Will react with water to form toxic and corrosive
fumes. Vapors may be heavier than air. They can spread along the
ground and collect in low or confined areas.
Extinguishing Media:
Do NOT use water directly on fire. Use dry chemical, carbon dioxide,
or alcohol-resistant foam. Do NOT get water inside containers. Cool
containers with flooding quantities of water until well after fire is
out.

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

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Do not flush into a sewer. Wash area with soap and water. Clean up
spills immediately, observing precautions in the Protective Equipment
section. Sweep up or absorb material, then place into a suitable
clean, dry, closed container for disposal. Provide ventilation. Do
not get water on spilled substances or inside containers.

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

Handling:
Wash thoroughly after handling. Wash hands before eating. Do not
allow water to get into the container because of violent reaction. Do
not get in eyes, on skin, or on clothing. Keep container tightly
closed. Do not ingest or inhale. Do not store near combustible
materials.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible
substances. Keep away from water. Keep away from metals. Corrosives
area. Keep containers tightly closed. Keep away from strong bases.

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

Engineering Controls:
Use process enclosure, local exhaust ventilation, or other
engineering controls to control airborne levels below recommended
exposure limits. Facilities storing or utilizing this material should
be equipped with an eyewash facility and a safety shower.
Exposure Limits
CAS# 1314-56-3:
United Kingdom, WEL - STEL: 2 mg/m3 STEL

Belgium - TWA: 1 mg/m3 VLE
France - VME: 1 mg/m3 VME
Germany: 1 mg/m3 TWA (inhalable fraction)
Netherlands: 1 mg/m3 MAC
Russia: 1 mg/m3 TWA
Spain: 1 mg/m3 VLA-ED
Spain: 2 mg/m3 VLA-EC

Personal Protective Equipment

Eyes:
Wear chemical goggles and a face shield if splashing
is possible. 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 butyl rubber gloves, apron, and/or clothing.
Wear appropriate gloves to prevent skin exposure.
Clothing:
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. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.

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

Physical State: Solid
Color: white
Odor: odorless
pH: 1
Vapor Pressure: .975 mm Hg @384
Viscosity: Not available.
Boiling Point: 360 deg C
Freezing/Melting Point: 340.00-360.00C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Reacts with water.
Specific Gravity/Density: 2.3900
Molecular Formula: P2O5
Molecular Weight: 141.9446

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

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, moisture.
Incompatibilities with Other Materials:
Incompatible with sodium, aluminum, potassium, ammonia, peroxides,
and magnesium. Upon contact with water, diphosphorus pentoxide
reacts violently producing heat and an acidic solution. Diphosphorus
pentoxide reacts violently with barium sulfide, hydrogen fluoride,
and iodides. Forms an explosive mixture with methyl hydroperoxide.
Contact with 3-propynol causes ignition to occur.
Hazardous Decomposition Products:
Oxides of phosphorus, phosphorous fumes.
Hazardous Polymerization: Has not been reported.

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

RTECS#:
CAS# 1314-56-3: TH3945000
LD50/LC50:
CAS# 1314-56-3: Inhalation, mouse: LC50 = 271 mg/m3/1H; Inhalation,
rabbit: LC50 = 1689 mg/m3/1H; Inhalation, rat: LC50 = 1217 mg/m3/1H.
Carcinogenicity:
Diphosphorus pentoxide -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

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



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

Products which are considered hazardous for supply are classified as Special
Waste and the disposal of such chemicals is covered by regulations which may
vary according to location. Contact a specialist disposal company or the local
waste regulator for advice. Empty containers must be decontaminated before
returning for recycling.

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

IATA
Shipping Name: PHOSPHORUS PENTOXIDE
Hazard Class: 8
UN Number: 1807
Packing Group: II
IMO
Shipping Name: PHOSPHORUS PENTOXIDE
Hazard Class: 8
UN Number: 1807
Packing Group: II
RID/ADR
Shipping Name: PHOSPHORUS PENTOXIDE
Hazard Class: 8
UN Number: 1807
Packing group: II

**** 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 22 Do not breathe dust.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
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# 1314-56-3: 1
Canada
CAS# 1314-56-3 is listed on Canada's DSL List.
CAS# 1314-56-3 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1314-56-3 is listed on the TSCA inventory.

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

MSDS Creation Date: 2/25/1999 Revision #3 Date: 3/18/2003

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