Material Safety Data Sheet
Lead chromate

ACC# 12580
Section 1 - Chemical Product and Company Identification

MSDS Name: Lead chromate
Catalog Numbers: AC612381000, L63-100, L65-100
Synonyms:
Chromic acid, lead(2+) salt; Chrome green; Chrome yellow.
Company Identification:

              Fisher Scientific
              1 Reagent Lane
              Fair Lawn, NJ 07410
For information, call:
201-796-7100
Emergency Number:
201-796-7100
For CHEMTREC assistance, call:
800-424-9300
For International CHEMTREC assistance, call:
703-527-3887

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
7758-97-6 Lead chromate 100 231-846-0

Section 3 - Hazards Identification

EMERGENCY OVERVIEW

Appearance: yellow to yellow-orange crystals.
Danger! Strong oxidizer. Contact with other material may cause a fire. May cause harm to the unborn child. Causes eye, skin, and respiratory tract irritation. Cancer hazard. Possible risk of impaired fertility. May cause kidney damage. May cause central nervous system effects. Dangerous for the environment.
Target Organs: Kidneys, central nervous system, lungs, blood forming organs, reproductive system, nerves.


Potential Health Effects
Eye: Causes eye irritation.
Skin: Causes skin irritation.
Ingestion: May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Many lead compounds can cause toxic effects in the blood-forming organs, kidneys and central nervous
Inhalation: Causes respiratory tract irritation. May cause effects similar to those described for ingestion.
Chronic: May cause cancer in humans. Repeated exposure may cause sensitization dermatitis. Chronic exposure to lead may result in plumbism which is characterized by lead line in gum, headache, muscle weakness, mental changes. Laboratory experiments have resulted in mutagenic effects. Lead salts have been reported to cross the placenta and induce embryo- and feto- mortality.

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.
Skin: Get medical aid. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion: Do not induce vomiting. 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.
Inhalation: Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician: Persons with asthma, allergies, and known sensitization to chromic acid or chromates may be at increased risk from exposure to this product. Treat symptomatically and supportively.
Antidote: The use of d-Penicillamine as a chelating agent should be determined by qualified medical personnel. The use of Calcium disodium EDTA as a chelating agent should be determined by qualified medical personnel. The use of Dimercaprol or BAL (British Anti-Lewisite) as a chelating agent should be determined by qualified medical personnel.

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. Combustion generates toxic fumes. Oxidizer. Greatly increases the burning rate of combustible materials. May accelerate burning if involved in a fire.
Extinguishing Media: Use water only! Cool containers with flooding quantities of water until well after fire is out. For large fires, flood fire area with water from a distance. Do NOT use dry chemicals, CO2, Halon or foams.
Flash Point: Not applicable.
Autoignition Temperature: Not applicable.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating: (estimated) Health: 2; Flammability: 3; Instability: 0; Special Hazard: OX

Section 6 - Accidental Release Measures


General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks: Avoid generating dusty conditions. Provide ventilation. With a clean shovel, carefully pick up the material and place it into a clean dry container and cover for disposal. Keep combustibles (wood, paper, oil, etc.,) away from spilled material.

Section 7 - Handling and Storage


Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation. 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. Keep from contact with clothing and other combustible materials. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage: Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

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
Chemical Name ACGIH NIOSH OSHA - Final PELs
Lead chromate 0.012 mg/m3 TWA (as Cr); 0.05 mg/m3 TWA (as Pb) 0.050 mg/m3 TWA (as Pb) (listed under Lead compounds).0.001 mg/m3 TWA (as Cr) (listed under Chromates).15 mg/m3 IDLH (as Cr(VI)) (listed under Chromates). 50 ęg/m3 TWA (as Pb) (listed under Lead, inorganic compounds).5 ęg/m3 TWA (listed under Chromium (VI) compounds).1 mg/m3 TWA (as Cr) (listed under Chromium insoluble salts).0.1 mg/m3 Ceiling (as Cr O3, applies to any operations or sectors for which the H exavalent Chromium standard [29 CFR 1910.1026] is stayed or is otherwise not in effect) (listed under Chromates).50 ęg/m3 TWA (as Pb); 30 ęg/m3 Action Level (as Pb. Poison - see 29 CFR 1910.10 25) (listed under Lead, inorganic compounds).

OSHA Vacated PELs: Lead chromate: No OSHA Vacated PELs are listed for this chemical.
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: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - Physical and Chemical Properties


Physical State: Crystals
Appearance: yellow to yellow-orange
Odor: none reported
pH: Not available.
Vapor Pressure: Not applicable.
Vapor Density: Not available.
Evaporation Rate:Not applicable.
Viscosity: Not applicable.
Boiling Point: decomposition
Freezing/Melting Point:844 deg C
Decomposition Temperature:Not available.
Solubility: Insoluble.
Specific Gravity/Density:6.123
Molecular Formula:PbCrO4
Molecular Weight:323.1936

Section 10 - Stability and Reactivity


Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Dust generation, excess heat.
Incompatibilities with Other Materials: Azodye stuffs (e.g. dinitroaniline orange and chlorinated para red), sulfur tantalum, iron (III) hexacyanoferrate (4-), hydrazine, hydrogen peroxide, active metals, sodium, potassium, reducing agents.
Hazardous Decomposition Products: Irritating and toxic fumes and gases, lead/lead oxides.
Hazardous Polymerization: Has not been reported.

Section 11 - Toxicological Information


RTECS#:      
CAS# 7758-97-6: GB2975000
LD50/LC50:
CAS# 7758-97-6:
     Oral, mouse: LD50 = >12 gm/kg;
.

Carcinogenicity:
CAS# 7758-97-6:


Epidemiology: Subcutaneous, rat: TDLo = 135 mg/kg (Tumorigenic - neoplastic by RTECS criteria - tumors at site of application).; Intramuscular,rat: TDLo = 324 mg/kg/39W-I (Tumorigenic - neoplastic by RTECS criteria - Kidney, Ureter, Bladder - Kidney tumors and tumors at site of application).
Teratogenicity: No information found
Reproductive Effects: No information found
Mutagenicity: Morphological Transformation: Human, Fibroblast = 500 nmol/L.; Mutation Test Systems - not otherwise specified: Human Cells - not otherwise specified = 500 mg/L.; Cytogenetic Analysis: Human, Lymphocyte = 13 umol/L.; Cytogenetic Analysis: Human Cells - not otherwise specified = 500 mg/L.; Sister Chromatid Exchange: Human, Lymphocyte = 20 umol/L.
Neurotoxicity: Repeated exposure to lead has caused neurological changes.
Other Studies:

Section 12 - Ecological Information


Ecotoxicity: No data available. Chromium in soil can be transported to the atmosphere by way of aerosol formation. Chromium is also transported from soil through runoff and leaching of water. Runoff could remove both chromium ions and bulk precipitates of chromium, with final deposition on either a different land area or a water body. Leaching of lead can be relatively rapid from some soils, especially at highly contaminated sites or landfills.
Environmental: Chromium is removed from air through wet and dry depositions. . Terrestrial Fate: Lead in soil is relatively immobile and can persist for long periods of time, whether added to the soil as halides, hydroxides, oxides, carbonates or sulfates.
Physical: No information available.
Other: No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

US DOT Canada TDG
Shipping Name: OXIDIZING SOLID, N.O.S. CORROSIVE SOLID NOS (LEAD CHROMATE)
Hazard Class: 5.1 8
UN Number: UN1479 UN1759
Packing Group: II II

Section 15 - Regulatory Information

US FEDERAL

TSCA
     CAS# 7758-97-6 is listed on the TSCA inventory.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     CAS# 7758-97-6: Section 5
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
     None of the chemicals in this product have a TPQ.
SARA Codes
     CAS # 7758-97-6: immediate, delayed.
Section 313
     This material contains Lead chromate (listed as Lead, inorganic compounds), 100%, (CAS# 7758-97-6) which is subject to the reporting requirements of Section 313 of SARA Title III and 40 CFR Part 373.
Clean Air Act:
     CAS# 7758-97-6 (listed as Lead compounds) is listed as a hazardous air      pollutant (HAP).
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
     None of the chemicals in this product are listed as Hazardous Substances under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA. CAS# 7758-97-6 is listed as a Toxic Pollutant under the Clean Water Act.
OSHA:
     None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
     CAS# 7758-97-6 can be found on the following state right to know lists: California, New Jersey, Pennsylvania, Minnesota, Massachusetts.

California Prop 65
The following statement(s) is(are) made in order to comply with the California Safe Drinking Water Act:
WARNING: This product contains Lead chromate, listed as `Chromium (VI) compounds', a chemical known to the state of California to cause cancer. WARNING: This product contains Lead chromate, listed as `Lead, inorganic compounds', a chemical known to the state of California to cause developmental reproductive toxicity.
California No Significant Risk Level: None of the chemicals in this product are listed.

European/International Regulations

European Labeling in Accordance with EC Directives
Hazard Symbols:
     T N
Risk Phrases:

     R 33 Danger of cumulative effects.
     R 40 Limited evidence of a carcinogenic effect.
     R 61 May cause harm to the unborn child.
     R 62 Possible risk of impaired fertility.
     R 50/53 Very toxic to aquatic organisms, may cause long-term
     adverse effects in the aquatic environment.

Safety Phrases:

     S 45 In case of accident or if you feel unwell, seek medical advice
     immediately (show the label where possible).
     S 53 Avoid exposure - obtain special instructions before use.
     S 60 This material and its container must be disposed of as hazardou
     s waste.
     S 61 Avoid release to the environment. Refer to special instructions
     /safety data sheets.

WGK (Water Danger/Protection)

     CAS# 7758-97-6: No information available.
Canada - DSL/NDSL
     CAS# 7758-97-6 is listed on Canada's DSL List.
Canada - WHMIS
     This product has a WHMIS classification of D2A, E.
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of the information required by those regulations.
Canadian Ingredient Disclosure List
     CAS# 7758-97-6 is listed on the Canadian Ingredient Disclosure List.

Section 16 - Additional Information

MSDS Creation Date: 6/28/1999
Revision #5 Date: 3/16/2007

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 event shall Fisher 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 Fisher has been advised of the possibility of such damages.