216 River Street
Suite 200
Troy, New York 12180
phone: (518) 273-6266
fax: (518) 273-6267
http://www.evidenttech.com
PbS Core EviDots
MSDS
Section 1 - Chemical Product
Product Family #: PbS Core EviDots
Substance: Core EviDots packed in Toluene
Trade Names/Synonyms: Core EviDots
Matrix: aliphatic hydrocarbon
Chemical Family: Nanocrystal: IV-VI semiconductor compound
Section 2 - Composition, Information on Ingredients
Component CAS# EC# % By Weight
Hexane 7732-18-5 203-777-6 ~ 99
Lead Sulfide (as nanocrystal
1314-87-0 215-246-6 <1
compound)
Section 3 - Hazards Identification
Hazard Description: Toxic, Dangerous to the Environment
NFPA Rating: Health = 2 Fire = 3 Reactivity = 0
Emergency Overview
Color: Brown-Black
Physical Form: Liquid
Odor: Gasoline like odor
Respiratory tract irritation, eye and skin irritation, central nervous system depression, and
Major Health Hazards: possible nervous system damage.
Physical Hazards: Flammable
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MSDS Potential Health Effects
Irritation, nausea, irregular heartbeat, vomiting, headache, drowsiness, loss of coordination,
Inhalation: nerve damage, brain damage, unconsciousness
Skin Contact: Irritation, dermatitis
Eye Contact: Irritation
Nausea, vomiting, stomach pain, headache, drowsiness, dizziness, loss of coordination,
Ingestion: heart disorders, and brain damage.
Carcinogen Status: Hexane Lead Containing Compounds
OSHA: No No
NTP: No No
IARC: No Yes
Section 4 - First Aid Measures
If inhaled, remove to fresh air. If not breathing give arti铿乧ial
Inhalation: respiration and seek medical attention.
Wash skin with soap and water for at least 15 minutes while
Skin Contact: removing contaminated personal protective equipment,
clothing and shoes. Seek medical attention if needed.
Eye Contact: Irrigate eyes for at least 15 minutes. Seek medical attention.
If ingested, do not induce vomiting, seek medical attention
Ingestion: immediately.
Section 5 - Fire Fighting Measures
Extinguishing Media: Dry chemical, carbon dioxide and foam extinguisher
Fire Fighting: Avoid Inhalation of material or combustion by-products
Flash Point: -8F (-22C) (closed cup)
Flammable Limits: 1.1% LEL -7.5% UEL
Autoignition Point: 437 F (225 C)
Flammability Class: OSHA Class IB
Section 6 - Accidental Release Measures
Absorb with spill pillow or other non-combustible material.
Small Spills: Collect spilled material in appropriate container for disposal
Section 7 - Handling and Storage
Store in a tightly closed container. Store in a cool dry place.
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MSDS Section 8 - Engineering Controls & Personal Protective Equipment
Exposure Limits
500ppm (1800 mg/m3 )OSHA TWA PEL
50ppm (180 mg/m3 )ACGIH TWA (skin)
Hexane: 50ppm (180 mg/m3 ) NIOSH TWA 10hour
180mg/m3 (50 mg/m3 ) DFG MAK
20ppm (72 mg/m3 ) UK OES TWA
0.05mg/m3 TWA PEL
0.03 mg/m3 OSHA action level 8 hours
Lead containing compounds: 0.05 mg/m3 ACGIH TWA
0.1 mg/m3 NIOSH TWA (10 hours)
0.1 mg/m3 DFG MAK
Provide local exhaust ventilation system or work in a chemi-
cal fume hood. Considerations should be made for the use
Ventiliation: of non-sparking or intrinsically safe ventilation systems and
equipment if explosive concentrations of material are pres-
ent. Ensure compliance with applicable exposure limits.
Wear safety glasses with side shields as a minimum level of
protection. If splash or splatter is possible, wear chemical/
splash resistant safety goggles and or face shield. Emer-
Eye Protection: gency eye wash station and quick drench shower should be
provided in the immediate work area as per the ANSI Z358.1
guidelines.
Clothing: Wear appropriate chemical resistant clothing.
Wear appropriate chemical resistant gloves for type of
Gloves: exposure. (nitrile or polyvinyl alcohol gloves are resistant to
n-hexane exposure)
Refer to 29CFR1910.134 for selection of appropriate
respiratory protection. Organic vapor cartridge with a 陆 or
full face mask, where n-hexane vapors do not exceed the
Respirator: assigned protection factor for the respirator. For unknown
concentrations or IDLH atmospheres wear self contained
breathing apparatus or supplied air with escape bottle.
Section 9 - Physical & Chemical Properties
Lead Sulfide Core EviDots in Hexane
Physical State: liquid
Color: Brown-Black
Odor: Gasoline like odor
Odor Threshold: ~64-244 ppm
Molecular Weight: 86.18
Boiling Point: 156 F (69 C)
Freezing Point: -139 F (-95 C)
Vapor Pressure: 124mmHg @20C
Vapor Density ( air = 1 ): 3.0
Specific Gravity ( water = 1 ): 0.6603
pH: neutral
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MSDS Section 10 - Reactivity
Stability: Stable at standard temperatures and pressure.
Conditions to avoid: Avoid heat, sparks and other sources of ignition.
Incompatible: Incompatible with oxidizing materials and halogens
Hazards Decomposition: Combustion produces toxic by-products.
Polymerization: Will not polymerize.
Section 11 - Toxicological Information
n-Hexane
Irritation Data: 10mg eyes-rabbit mild
>3367 ppm inhalation 鈥搑at LC50; >2mg/kg skin-rabbit LD50; >5gm/kg oral-rat LD50; 190
ppm/8 week(s) inhalation 鈥揾uman TCLo; 25gm/kg oral-rat LD50; 48000 ppm/4 hours Inha-
Toxicity Data: lation-rat LC50; 9100 mg/kg intraperitoneal-rat LDLo; 120 gm/m3 inhalation-mouse LCLo;
831mg/kg intravenous-mouse LDLo; 132mg/kg intravenous-rabbit LDLo; 20000 mg/kg
oral-rat TDLo;
Local Effects: Irritant; inhalation, skin, eye
Slightly Toxic: Inhalation
Relatively Non-Toxic: Ingestion
Target Organs: Nervous system
Medical conditions aggravated by
Kidney disorders. Liver disorders, respiratory disorders, skin disorders and allergies
exposure:
Lead Sulfide
1810 mg/kg intraperitoneal-rat LDLo; 10gm/kg oral-guinea pig LDLo; 250 mg/kg intratra-
Toxicity Data: cheal-rat LDLo; 16764 mg/kg/6 week(s) continuous oral-rat TDLo; 0.048 mg/m3/ 6hours-
183 days intermittent inhalation-rat TCLo.
IARC; Human inadequate Evidence, Animal Suf铿乧ient Evidence, Group 2B (lead and
inorganic Lead compounds); ACGIH: A3 鈥? Animal carcinogen (lead and inorganic lead
Carcinogen Status: compounds) Renal tumors were produced in animals by lead acetate, subacetate and
phosphate given orally, subcutaneously or intraperitoneally. No evaluation could be made
of the carcinogenicity of other lead compounds.
Absorption of large amounts of lead may cause a metallic taste, thirst, burning sensation
in the mouth and threat, salivation, abdominal pain with sever colic, vomiting, diarrhea of
black or bloody stools, constipation, fatigue, sleep disturbances, dullness, restlessness,
Acute Inhalation Exposure: irritability, memory loss, loss of concentration, delirium, oliguria often with hematuria and
albuminuria, encephalopathy with visual failure, paresthesias, muscle pain and weakness,
convulsions, and paralysis.
Prolonged or repeated exposure to low level of lead may result in an accumulation in body
tissues and exert adverse effects on the blood, nervous system, heart, endocrine and
immune systems, kidneys, and reproduction. Early stages of lead poisoning, 鈥減lumbism鈥?,
may be evidenced by anorexia, weight loss, constipation, apathy or irritability, occasional
vomiting, fatigue, headache, weakness, metallic taste in the mouth, gingival lead line in
Chronic Exposure: persons with poor dental hygiene, and anemia. Loss of recently developed motor skills is
generally observed only in children. Lead crosses the placenta and may affect the fetus
causing birth defects, mental retardation, behavioral disorders, and death during the 铿乺st
year of childhood. Animal studies indicate that reproductive effects may be additive if both
parents are exposed to lead.
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MSDS Lead Sulfide
Contact with lead powders or dust may be irritating. Lead is not absorbed through the skin,
Skin Exposure: but may be transferred to the mouth inadvertently by cigarettes, chewing tobacco, food, or
make up.
Eye Exposure: Irritating effect.
Sensitization: No sensitizing effects known.
To the best of our knowledge the acute and chronic toxicity of this substance is not fully
known. Lead Sul铿乨e, in the form of a nanocrystal may or may not present the same health
Additional toxicological information: hazards as a larger lead containing molecules. It is therefore encouraged to use caution
when handling this product as its toxicity and modes of exposure are not well characterized
or understood.
Section 12 - Ecological Information
Do not allow material to be released to the environment (ground, air or water bodies) without proper
permits. This material is toxic to 铿乻h & other aquatic organisms and may bioaccumulate.
Section 13 - Transportation Information
U.S. DOT: Class 3, packing group II, UN1208
Canadian Transportation of Dangerous Goods: UN1208 Class 3
Land Transport ADR/RID: UN1208, Class 3, Class Code F1, Pack group II
Air Transport IATA/ICAO: UN1208, Class or Division 3, pack group II
Exceptions: 49 CFR 173.4
Section 14 - Disposal
U.S. EPA 40 CFR 262: Hazardous Waste Number: D001 (Flammable)
US EPA 40 CFR 262: Regulatory level of 5mg/L (Lead). Hazardous Waste Number: D008
Dispose in accordance with all applicable local, state and federal regulations.
Section 15 - Regulatory Information
US Regulations
Lead Sul铿乨e: n-Hexane:
CERCLA: 10 Lbs RQ CERCLA: 5000 Lbs RQ
SARA Title III, Sec.302, 304: Not regulated SARA Title III, Sec.302,304: Not Regulated
SARA Title III, Sec.311/312: SARA Title III, Sec. 311/312:
Acute: Yes Acute: Yes
Chronic: Yes Chronic: Yes
Fire: No Fire: Yes
Reactive: No Reactive: No
Sudden Release: No Sudden Release: No
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MSDS Canadian Regulations
Lead Sul铿乨e: n-Hexane:
WHMIS Classi铿乧ation: Not available WHMIS Classi铿乧ation: Not available
European Regulations
Lead Sul铿乨e: n-Hexane:
EC Classi铿乧ation: EC Classi铿乧ation:
Xn-Harmful F-Highly Flammable
N-Dangerous for the Environment Xn- Harmful
Reproductive Toxin Category 1 & 3 Xi- Irritant
N- Dangerous for the Environment
Reproductive Toxin Category 3
EC Risk Phrases
Lead Sul铿乨e: n-Hexane:
R20/22, R33, R50/53, R61, R62, S45 R11, R38, R48/20, R51/53, R62, R65, R67
S53, S60, S61 S2, S9, S16, S29, S33, S36/37, S61, S62
Section 16 - Other Information
The above information is believed to be correct but does not purport to be all inclusive and shall
be used only as a guide. Evident Technologies shall not be held liable for any damage resulting
from handling or from contact with the above product. See packing slip for additional terms and
conditions of sale.
Revision Date: 12/5/2004
Creation Date: 12/5/2004
216 River Street
Suite 200
Troy, New York 12180
phone: (518) 273-6266
fax: (518) 273-6267
http://www.evidenttech.com
December 2004 - MSDS v1.0 Page: 6
漏 2005 Evident Technologies, Inc. All speci铿乧ations subject to change without notice
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