Name:
Paraldehyde 99.5% (gc)
Synonym:
2,4,6-Trimethyl-1,3,5-trioxane; Paracetaldehyd
CAS:
123-63-7
Section 1 - Chemical Product
MSDS Name:Paraldehyde 99.5% (gc)
Synonym:2,4,6-Trimethyl-1,3,5-trioxane; Paracetaldehyd
Synonym:2,4,6-Trimethyl-1,3,5-trioxane; Paracetaldehyd
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 123-63-7 | Paraldehyde, 99% | 204-639-8 |
| Hazard Symbols: F Risk Phrases: 11 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Highly flammable.
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.
Highly flammable.
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: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. 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. Remove contaminated clothing and shoes.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
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. Flammable liquid and vapor.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Flammable liquid and vapor.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire.
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.
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.
Section 7 - HANDLING and STORAGE
Handling:
Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep away from heat, sparks and flame. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Flammables-area.
Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep away from heat, sparks and flame. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Flammables-area.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits. Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels.
Exposure Limits CAS# 123-63-7: Russia: 5 mg/m3 TWA Personal Protective Equipment Eyes: Wear chemical splash goggles. Wear safety glasses and chemical goggles if splashing is possible.
Skin:
Wear appropriate protective gloves and clothing to prevent skin exposure. Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits. Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels.
Exposure Limits CAS# 123-63-7: Russia: 5 mg/m3 TWA Personal Protective Equipment Eyes: Wear chemical splash goggles. Wear safety glasses and chemical goggles if splashing is possible.
Skin:
Wear appropriate protective gloves and clothing to prevent skin exposure. Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. 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: Clear liquid
Color: clear colorless to yellow
Odor: None reported.
pH: Not available.
Vapor Pressure: 10 hPa @ 20 C
Viscosity: 1.19 cP 20 deg C
Boiling Point: 124 deg C @ 760.00mm Hg
Freezing/Melting Point: 12 deg C
Autoignition Temperature: 235 deg C ( 455.00 deg F)
Flash Point: 27 deg C ( 80.60 deg F)
Explosion Limits, lower: 1.30 vol %
Explosion Limits, upper: 1.70 vol %
Decomposition Temperature:
Solubility in water: 125 g/l water (25 c)
Specific Gravity/Density: .9920g/cm3
Molecular Formula: C6H12O3
Molecular Weight: 132.16
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, strong oxidants.
Incompatibilities with Other Materials:
Not available.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported.
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, strong oxidants.
Incompatibilities with Other Materials:
Not available.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 123-63-7: YK0525000 LD50/LC50:
CAS# 123-63-7: Draize test, rabbit, eye: 5 mg Severe; Oral, mouse: LD50 = 2750 mg/kg; Oral, rabbit: LD50 = 3304 mg/kg; Oral, rat: LD50 = 1530 mg/kg; Skin, rabbit: LD50 = 14100 uL/kg.
Carcinogenicity:
Paraldehyde, 99% - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 123-63-7: YK0525000 LD50/LC50:
CAS# 123-63-7: Draize test, rabbit, eye: 5 mg Severe; Oral, mouse: LD50 = 2750 mg/kg; Oral, rabbit: LD50 = 3304 mg/kg; Oral, rat: LD50 = 1530 mg/kg; Skin, rabbit: LD50 = 14100 uL/kg.
Carcinogenicity:
Paraldehyde, 99% - 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: PARALDEHYDE
Hazard Class: 3
UN Number: 1264
Packing Group: III
IMO
Shipping Name: PARALDEHYDE
Hazard Class: 3.3
UN Number: 1264
Packing Group: III
RID/ADR
Shipping Name: PARALDEHYDE
Hazard Class: 3
UN Number: 1264
Packing group: III
USA RQ: CAS# 123-63-7: 1000 lb final RQ; 454 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: F
Risk Phrases:
R 11 Highly flammable.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 29 Do not empty into drains.
S 33 Take precautionary measures against static
discharges.
WGK (Water Danger/Protection)
CAS# 123-63-7: No information available.
Canada
CAS# 123-63-7 is listed on Canadas DSL List.
CAS# 123-63-7 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 123-63-7 is listed on the TSCA inventory.
