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MSDS 
:
 Diisopropyl fluorophosphate
CAS 
:
 55-91-4
SYNONYMS 
:
 DFP; Diisopropyl phosphorofluoridate; Isofluorphate
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 55-91-4 |Diisopropyl fluorophosphate | 100.0 | 200-247-6 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T+
Risk Phrases: 26/27/28

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

EMERGENCY OVERVIEW
Very toxic by inhalation, in contact with skin and if
swallowed.Moisture sensitive.

Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. May be absorbed through the skin in harmful
amounts.
Ingestion:
May be fatal if swallowed.
Inhalation:
Harmful if inhaled. Dust is irritating to the respiratory tract.
Causes respiratory tract irritation. May cause effects similar to
those described for ingestion. Causes irritation of mucous membrane.
Chronic:
Chronic inhalation and ingestion may cause effects similar to those
of acute inhalation and ingestion.

**** 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.
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 not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid.
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.
Extinguishing Media:
For large fires, use water spray, fog, or alcohol-resistant foam.
For small fires, use water spray, dry chemical, carbon dioxide or
chemical foam. Water may be ineffective.

**** 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.

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

Handling:
Wash thoroughly after handling. Do not get in eyes, on skin, or on
clothing. Keep container tightly closed. Do not ingest or inhale. Use
only in a chemical fume hood.
Storage:
Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep
refrigerated. (Store below 4C/39F.) Do not exceed 30C (86F).

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

Engineering Controls:
Use only under a chemical fume hood.
Exposure Limits
CAS# 55-91-4:


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 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: Liquid
Color: clear, colorless
Odor: None reported.
pH: Not available.
Vapor Pressure: 0.579 mmHg @ 20
Viscosity: Not available.
Boiling Point: 62 deg C @ 9.00mmHg
Freezing/Melting Point: -82 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: 1.54 WT% (25C)
Specific Gravity/Density: 1.0550g/cm3
Molecular Formula: C6H14FO3P
Molecular Weight: 184.15

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

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, moisture, excess heat, temperatures above
30C.
Incompatibilities with Other Materials:
Strong bases - strong oxidizing agents, contact with moisture may
generate hydrogen fluoride.
Hazardous Decomposition Products:
Phosphine, carbon monoxide, oxides of phosphorus, carbon dioxide,
hydrogen fluoride gas.
Hazardous Polymerization: Has not been reported.

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

RTECS#:
CAS# 55-91-4: TE5075000
LD50/LC50:
CAS# 55-91-4: Inhalation, mouse: LC50 = 440 mg/m3/10M; Inhalation,
rat: LC50 = 360 mg/m3/10M; Oral, mouse: LD50 = 2 mg/kg; Oral, rabbit:
LD50 = 4 mg/kg; Oral, rat: LD50 = 5 mg/kg; Skin, rabbit: LD50 = >117
mg/kg.
Carcinogenicity:
Diisopropyl fluorophosphate -
Not listed by ACGIH, IARC, or NTP.
Other:
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: TOXIC LIQUID, ORGANIC, N.O.S.*
Hazard Class: 6.1
UN Number: 2810
Packing Group: I
IMO
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2810
Packing Group: I
RID/ADR
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2810
Packing group: I
USA RQ: CAS# 55-91-4: 100 lb final RQ; 45.4 kg final RQ

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

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+
Risk Phrases:
R 26/27/28 Very toxic by inhalation, in contact with
skin and if swallowed.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 55-91-4: No information available.
Canada
CAS# 55-91-4 is listed on Canada's DSL List.
CAS# 55-91-4 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 55-91-4 is listed on the TSCA inventory.

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

MSDS Creation Date: 9/02/1997 Revision #2 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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