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MSDS 
:
 Guaiacol, 99+%
CAS 
:
 90-05-1
SYNONYMS 
:
 Guaicol; o-Hydroxyanisole; 1-Hydroxy-2-methoxybenzene;     o-Methoxyphenol; Pyroguaiac acid; 2-Methoxyphenol; Methylcatechol;     Pyrocatechol monomethyl ether.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 90-05-1 |Guaiacol | > 99 | 201-964-7 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XN
Risk Phrases: 22 36/38

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

EMERGENCY OVERVIEW
Harmful if swallowed. Irritating to eyes and skin.Light
sensitive.Air sensitive.

Potential Health Effects
Eye:
Causes severe eye irritation.
Skin:
Causes skin irritation. Prolonged skin contact may cause injury
especially if the skin is abraded. Substance is readily absorbed
through the skin.
Ingestion:
Causes gastrointestinal irritation with nausea, vomiting and
diarrhea. May be harmful if swallowed.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation.
Chronic:
Not available.

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

Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, immediately flush skin with plenty of water.
Remove contaminated clothing and shoes. Get medical aid. Wash
clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by
medical personnel. Never give anything by mouth to an unconscious
person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

**** 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. Dusts at sufficient concentrations can form
explosive mixtures with air. 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. Combustible
liquid and vapor. Vapors are heavier than air and may travel to a
source of ignition and flash back. Vapors can spread along the
ground and collect in low or confined areas.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or
alcohol-resistant foam.

**** 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. Scoop up
with a nonsparking tool, then place into a suitable container for
disposal. Remove all sources of ignition. Provide ventilation.

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

Handling:
Wash thoroughly after handling. Wash hands before eating. Remove
contaminated clothing and wash before reuse. Ground and bond
containers when transferring material. Avoid contact with eyes,
skin, and clothing. Empty containers retain product residue, (liquid
and/or vapor), and can be dangerous. Keep container tightly closed.
Avoid ingestion and inhalation. Use only in a chemical fume hood. Do
not pressurize, cut, weld, braze, solder, drill, grind, or expose
empty containers to heat, sparks or open flames. Use only with
adequate ventilation. Keep away from heat and flame.
Storage:
Keep away from sources of ignition. Do not store in direct sunlight.
Store in a cool, dry, well-ventilated area away from incompatible
substances. Storage under a nitrogen blanket has been recommended.
Store protected from light and air.

**** 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.
Exposure Limits
CAS# 90-05-1:


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:
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 or liquid
Color: clear slightly yellow
Odor: Characteristic odor.
pH: Not available.
Vapor Pressure: 0.11 mm Hg @ 25 deg C
Viscosity: Not available.
Boiling Point: 205 deg C
Freezing/Melting Point: 27-29 deg C
Autoignition Temperature: 385 deg C ( 725.00 deg F)
Flash Point: 82 deg C ( 179.60 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Slightly soluble in water.
Specific Gravity/Density: 1.12 @ 21/4C
Molecular Formula: C7H8O2
Molecular Weight: 124.14

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

Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions. Darkens on exposure to light and air.
Conditions to Avoid:
High temperatures, light, ignition sources, exposure to air, exposure
to flame.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong acids, strong bases, acid chlorides,
acid anhydrides.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported.

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

RTECS#:
CAS# 90-05-1: SL7525000
LD50/LC50:
CAS# 90-05-1: Draize test, rabbit, eye: 5 mg Mild; Draize test,
rabbit, skin: 500 mg/24H Severe; Inhalation, mouse: LC50 = 7570
mg/m3; Inhalation, mouse: LC50 = 7570 mg/m3/2H; Oral, mouse: LD50 =
621 mg/kg; Oral, rat: LD50 = 520 mg/kg; Skin, rabbit: LD50 = 4600
mg/kg.
Oral LDLo (human): 43 mg/kg.
Carcinogenicity:
Guaiacol -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

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

Ecotoxicity:
Daphnia: Daphnia: 63 mg/l; 24 hr; EC50

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

Dispose of in a manner consistent with federal, state, and local regulations.

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

IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

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

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 22 Harmful if swallowed.
R 36/38 Irritating to eyes and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
WGK (Water Danger/Protection)
CAS# 90-05-1: 1
Canada
CAS# 90-05-1 is listed on Canada's DSL List.
CAS# 90-05-1 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 90-05-1 is listed on the TSCA inventory.

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

MSDS Creation Date: 7/23/1998 Revision #3 Date: 3/04/2004

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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