**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 123-31-9 |Hydroquinone | >98.0 | 204-617-8 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XN N
Risk Phrases: 22 40 41 43 50 68
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Harmful if swallowed. Limited evidence of a carcinogenic effect.
Risk of serious damage to eyes. May cause sensitization by skin
contact. Very toxic to aquatic organisms.Possible risk of
irreversible effects.Light sensitive.Air sensitive.
Potential Health Effects
Eye:
May cause eye irritation. Repeated exposure may cause corneal
abnormalities including structural changes and brownish
discoloration which can lead to decreased visual acuity and
blindness.
Skin:
Causes severe skin irritation. May cause skin sensitization, an
allergic reaction, which becomes evident upon re-exposure to this
material. May cause dermatitis. Repeated exposure may cause
hyperpigmentation of fair skin and depigmentation of dark skin.
Ingestion:
May cause severe irritation of the digestive tract. May be harmful
if swallowed. May cause dizziness, nausea, sense of suffocation,
increased respiratory rate, vomiting, pallor, muscle twitching,
cyanosis (bluish discoloration of skin due to deficient oxygenation
of the blood), delirium, collapse. May cause green or brownish green
urine which continues to darken upon standing.
Inhalation:
May cause respiratory tract irritation. Causes narcotic effects
including headache, dizziness, weakness, unconsciousness, and
possible death. Vapors may cause dizziness or suffocation.
Inhalation of dust may cause respiratory tract irritation. Exposure
to high concentration of vapor may caues irritation, photophobia,
tearing, and corneal ulceration.
Chronic:
Prolonged or repeated skin contact may cause sensitization
dermatitis and possible destruction and/or ulceration.
**** 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. Do NOT allow victim to rub eyes or keep eyes closed.
Skin:
Get medical aid. Immediately flush skin with plenty of water for at
least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
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. Dusts at sufficient concentrations can form
explosive mixtures with air.
Extinguishing Media:
Use foam, dry chemical, or carbon dioxide.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Sweep up or absorb material, then place into a suitable clean, dry,
closed container for disposal. Avoid generating dusty conditions.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Use only in a well-ventilated area.
Minimize dust generation and accumulation. Avoid contact with eyes,
skin, and clothing. Avoid ingestion and inhalation.
Storage:
Store in a cool, dry place. Do not store in direct sunlight.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne
concentrations below the permissible exposure limits.
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. Always use
a NIOSH or European Standard EN 149 approved
respirator when necessary.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Crystals
Color: colorless, light tan, or light gray
Odor: None reported.
pH: Not available.
Vapor Pressure: 1 mm Hg @ 132C
Viscosity: Not available.
Boiling Point: 285 deg C @ 760.00mm Hg
Freezing/Melting Point: 172.00 - 175.00 deg C
Autoignition Temperature: 516 deg C ( 960.80 deg F)
Flash Point: 165 deg C ( 329.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: 70 G/L WATER (20C)
Specific Gravity/Density: 1.3280g/cm3
Molecular Formula: C6H6O2
Molecular Weight: 110.11
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures. Substance undergoes
color change upon exposure to light and air.
Conditions to Avoid:
Light, dust generation, moisture.
Incompatibilities with Other Materials:
Strong oxidizers, alkalies. Undergoes violent reaction with sodium
hydroxide.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, quinone.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 123-31-9: MX3500000
LD50/LC50:
CAS# 123-31-9: Oral, mouse: LD50 = 245 mg/kg; Oral, mouse: LD50 =
350 mg/kg; Oral, rabbit: LD50 = 200 mg/kg; Oral, rat: LD50 = 302
mg/kg; Oral, rat: LD50 = 320 mg/kg.
Carcinogenicity:
Hydroquinone -
ACGIH: A3 - Confirmed animal carcinogen with unknown relevance to
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Fish: Rainbow trout: LC50 = 0.097 mg/L; 96 Hr.; UnspecifiedFish:
Fathead Minnow: LC50 = 0.1-0.18 mg/L; 96 Hr.; UnspecifiedBacteria:
Phytobacterium phosphoreum: EC50 =0.77-3.97 mg/L; 5,15,30 minutes;
Microtox test
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: HYDROQUINONE
Hazard Class: 6.1
UN Number: 2662
Packing Group: III
IMO
Shipping Name: HYDROQUINONE, SOLID
Hazard Class: 6.1
UN Number: 2662
Packing Group: III
RID/ADR
Shipping Name: HYDROQUINONE
Hazard Class: 6.1
UN Number: 2662
Packing group: III
USA RQ:CAS# 123-31-9: 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: XN N
Risk Phrases:
R 22 Harmful if swallowed.
R 40 Limited evidence of a carcinogenic effect.
R 41 Risk of serious damage to eyes.
R 43 May cause sensitization by skin contact.
R 50 Very toxic to aquatic organisms.
R 68 Possible risk of irreversible effects.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 123-31-9: 2
United Kingdom Occupational Exposure Limits
CAS# 123-31-9: OES-United Kingdom, TWA 2 mg/m3 TWA
CAS# 123-31-9: OES-United Kingdom, STEL 4 mg/m3 STEL
United Kingdom Maximum Exposure Limits
CAS# 123-31-9: MEL-United Kingdom, TWA 0.5 mg/m3 TWA
Canada
CAS# 123-31-9 is listed on Canada's DSL List.
CAS# 123-31-9 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 123-31-9: OEL-AUSTRALIA:TWA 2 mg/m3
OEL-BELGIUM:TWA 2 mg/m3
OEL-DENMARK:STEL 2 mg/m3
OEL-FINLAND:TWA 2 mg/m3;STEL 4 mg/m3;Skin
OEL-FRANCE:TWA 2 mg/m3
OEL-GERMANY:TWA 2 mg/m3
OEL-THE NETHERLANDS:TWA 2 mg/m3
OEL-THE PHILIPPINES:TWA 2 mg/m3
OEL-POLAND:TWA 2 mg/m3
OEL-SWEDEN:TWA 0.5 mg/m3;STEL 1.5 mg/m3
OEL-SWITZERLAND:TWA 2 mg/m3;STEL 4 mg/m3
OEL-TURKEY:TWA 2 mg/m3
OEL-UNITED KINGDOM:TWA 2 mg/m3;STEL 4 mg/m3
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 123-31-9 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 6/16/1999 Revision #3 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.
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
|
|
|