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MSDS 
:
 Diethyl phosphite, 98%
CAS 
:
 64-17-5
SYNONYMS 
:
 Diethyl hydrogen phosphonate; Diethyl hydrogen phosphite; DEHP; DEPI.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 64-17-5 |Ethyl alcohol | 1 | 200-578-6 |
|----------------|--------------------------------------|----------|-----------|
| 78-40-0 |Triethyl phosphate | 1 | 201-114-5 |
|----------------|--------------------------------------|----------|-----------|
| 762-04-9 |Diethyl phosphite | 98 | 212-091-6 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: XN
Risk Phrases: 20/21 38

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

EMERGENCY OVERVIEW
Harmful by inhalation and in contact with skin. Irritating to
skin.Moisture sensitive.

Potential Health Effects
The toxicological properties of this material have not been
investigated. Use appropriate procedures to prevent opportunities
for direct contact with the skin or eyes and to prevent inhalation.

**** 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.
Skin:
Flush skin with plenty of water for at least 15 minutes while
removing contaminated clothing and shoes.
Ingestion:
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.
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.
Extinguishing Media:
Alcohol foam, water fog, carbon dioxide, dry chemical.

**** 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. Clean up spills immediately,
observing precautions in the Protective Equipment section. Remove all
sources of ignition. Provide ventilation. Use only non-sparking tools
and equipment.

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

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Ground and bond containers when transferring
material. Avoid contact with eyes, skin, and clothing. Avoid
ingestion and inhalation. Keep away from heat and flame.
Storage:
Keep container closed when not in use. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep away
from oxidizing agents.

**** 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 general or
local exhaust ventilation to keep airborne concentrations below the
permissible exposure limits.
Exposure Limits
CAS# 64-17-5:
United Kingdom, WEL - TWA: 1000 ppm TWA; 1920 mg/m3 TWA
United Kingdom, WEL - STEL: 3000 ppm STEL; 5760 mg/m3 STEL
United States OSHA: 1000 ppm TWA; 1900 mg/m3 TWA
Belgium - TWA: 1000 ppm VLE; 1907 mg/m3 VLE
France - VME: 1000 ppm VME; 1900 mg/m3 VME
France - VLE: 5000 ppm VLE; 9500 mg/m3 VLE
Germany: 500 ppm TWA; 960 mg/m3 TWA
Malaysia: 1000 ppm TWA; 1880 mg/m3 TWA
Netherlands: 500 ppm MAC; 1000 mg/m3 MAC
Russia: 1000 mg/m3 TWA
Spain: 1000 ppm VLA-ED; 1910 mg/m3 VLA-ED
CAS# 78-40-0:

CAS# 762-04-9:


Personal Protective Equipment

Eyes:
Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Wear a NIOSH/MSHA or European Standard EN 149
approved full-facepiece airline respirator in the
positive pressure mode with emergency escape
provisions.

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

Physical State: Liquid
Color: clear, colorless
Odor: characteristic odor
pH: Not available.
Vapor Pressure: 2 mm Hg @ 20 deg C
Viscosity: 103 cst 37.00 deg C
Boiling Point: 60-66 deg C @ 6 mm Hg
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: 74 deg C ( 165.20 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Soluble.
Specific Gravity/Density: 1.079 @ 20C
Molecular Formula: C4H11O3P
Molecular Weight: 138.10

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

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, water.
Hazardous Decomposition Products:
Carbon monoxide, oxides of phosphorus, carbon dioxide.
Hazardous Polymerization: Will not occur.

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

RTECS#:
CAS# 64-17-5: KQ6300000
CAS# 78-40-0: TC7900000
CAS# 762-04-9: TG7875000
LD50/LC50:
CAS# 64-17-5: Draize test, rabbit, eye: 500 mg Severe; Draize test,
rabbit, eye: 500 mg/24H Mild; Draize test, rabbit, skin: 20 mg/24H
Moderate; Inhalation, mouse: LC50 = 39 gm/m3/4H; Inhalation, rat:
LC50 = 20000 ppm/10H; Oral, mouse: LD50 = 3450 mg/kg; Oral, rabbit:
LD50 = 6300 mg/kg; Oral, rat: LD50 = 7060 mg/kg; Oral, rat: LD50 =
9000 mg/kg.
CAS# 78-40-0: Dermal, guinea pig: LD50 = >20 mL/kg; Draize test,
rabbit, eye: 100 mg Moderate; Oral, mouse: LD50 = 1180 mg/kg; Oral,
rat: LD50 = 1165 mg/kg.
CAS# 762-04-9: Oral, rat: LD50 = 3900 mg/kg; Skin, rabbit: LD50 =
2020 uL/kg.
Carcinogenicity:
Ethyl alcohol -
Not listed by ACGIH, IARC, or NTP.
Triethyl phosphate -
Not listed by ACGIH, IARC, or NTP.
Diethyl phosphite -
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
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

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

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 20/21 Harmful by inhalation and in contact with
skin.
R 38 Irritating to skin.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 24 Avoid contact with skin.
S 38 In case of insufficient ventilation, wear
suitable respiratory equipment.
WGK (Water Danger/Protection)
CAS# 64-17-5: 0
CAS# 78-40-0: 1
CAS# 762-04-9: 1
Canada
CAS# 64-17-5 is listed on Canada's DSL List.
CAS# 78-40-0 is listed on Canada's DSL List.
CAS# 762-04-9 is listed on Canada's DSL List.
CAS# 64-17-5 is listed on Canada's Ingredient Disclosure List.
CAS# 78-40-0 is not listed on Canada's Ingredient Disclosure List.
CAS# 762-04-9 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 64-17-5 is listed on the TSCA inventory.
CAS# 78-40-0 is listed on the TSCA inventory.
CAS# 762-04-9 is listed on the TSCA inventory.

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

Text for R-phrases from Section 2
R 11 Highly flammable.
MSDS Creation Date: 9/02/1997 Revision #3 Date: 2/05/2004

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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