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Date Effective........... March 30, 2006
(most recent revision)
Chemical Name/Synonyms... Cadmium Sulfide
Chemical Family.......... II-VI Compounds
Emergencies
Contacting CHEMTREC:
24 Hour Emergency Use Only #'s......
Worldwide phone: 1-(703)-527-3887
Worldwide FAX: 1-(703)-741-6090
Toll-free phone: 1-(800)-424-9300 USA only
Product or Trade Name.... SPI#01718-AA, -AB, -MB, -SS Cadmium Sulfide Powder
and SPI#01718C-AA, -AB, -MB, -SS Cadmium Sulfide Chunks
CAS #.................... 1306-23-6
Chemical Formula......... CdS
Component Name CAS # 1306-23-6
Concentration by
Wt/Mol%
99.999
NFPA Rating: Not known
Emergency overview:
Long term or repeated exposure to the powder could have harmful
effects resulting in both kidney impairment and bone weakness.
The material is carcinogenic to humans. It is also a mutagen and
irritant. Material should be handled only with gloves in an approved
hood.
Signal Word
CAUTION!
Physical Health Hazards:
Dust from powder can cause health problems as described above.
Physical state: Solid crystals in particulate or chunk form,
particles having a size of approximately 150 µm
and in chunk form, individual pieces 3-12 mm in
size (along with some "fines").
Color: Light yellow to orange crystal chunks or yellow to
brown powder
Odor: None
Odor threshold: No data available
Potential Health Effects:
Routes of exposure
Eye contact, ingestion, skin contact
Signs and Symptoms of Acute Exposure:
Long term or repeated exposure can affect the lungs. The
material also can have effects on the kidneys and bone tissue,
resulting in kidney impairment and bone weakness. The
substance is carcinogenic to humans.
Skin contact:
Not known, but skin contact should be avoided.
Inhalation:
Evaporation at 20° C/ 68° F is negligible. A harmful
concentration of airborne particulates can be reached quickly
when particles are dispersed.
Eye contact:
Mechanical irritation is possible, other effects not known.
Ingestion:
Ingestion is unlikely but should it occur, acute symptoms are
diarrhea and nausea. Do not eat, drink, or smoke during working
with this material. Wash hands thoroughly after working before
eating or smoking. Residues of this material, if transferred to
a cigarette (or cigar) paper, will give off toxic and irritating
fumes when burned.
Chronic Health Effects Summary:
Lungs may be effected by repeated or prolonged exposure to
this material. There can be effects on the kidneys by way of
impairment and on bone tissue by way of bone weakness. Material
is carcinogenic to humans.
Conditions Aggravated by Exposure:
No known conditions are aggravated by this material.
Take proper precautions to ensure your own health and safety before
attempting to rescue and providing first aid.
Inhalation: If symptoms are experienced, move victim to fresh
air, and obtain medical attention.
Eye Contact: Wash eyes with clean low-pressure water, removing
contact lenses if possible. Then seek medical advice from
a qualified physician.
Skin Contact: Remove contaminated clothing, then rinse skin thorough
with soap and water to remove all traces of the substance.
Ingestion: Rinse mouth, give plenty of water to drink and then
seek qualified medical attention.
NFPA Rating: Not known
Flammability classification:
Not classified. However material is combustible and will give off
toxic fumes if burned in a fire.
Flash Point/Method: Not applicable
Auto-Ignition Temperature: Not known
Flammable Limits: Lower: Not applicable
Upper: Not applicable
Hazardous Combustion Products:
Toxic and irritating fumes are given off of unknown composition if
burned. If the substance is heated, it will decompose producing
toxic and irritating fumes, including sulfur oxides. It will react
with strong oxidants and reacts with acids forming toxic gas
(hydrogen sulfide).
Special Conditions to Avoid:
Any open flames when working with the material. Prevent dispersion
of the dust or powder. If possible, work with product in chunk form
instead of in powder form. Avoid unprotected hands, that is, always
use gloves when working with the material.
Extinguishing Media:
Water spray, dry powders
Fire Fighting Instructions:
Protective Equipment/Clothing: Wear a NIOSH approved positive
pressure self-contained breathing apparatus and firefighter
turnout gear.
Instructions: Use flooding quantities of water until well after
fire is out.
Release response:
Sweep spilled substance into containers and if appropriate,
moisten first to minimize or prevent dusting and the generation
of airborne particulates. Then move to a safe place. Do
not let this chemical enter the environment.
Reportable Quantities: Contact local regulatory authorities
Handling: Remove all ignition sources from material handling, transfer, and processing areas where dust may be present. Local exhaust ventilation should be provided in work areas. Ensure that airborne dust concentrations are controlled within acceptable OSHA dust standards. If material is used in spray or fluidized bed operations, see Section 5 of this MSDS for additional information. Storage: Keep container dry. Store away from excessive heat and away from strong oxidizing agents, strong acids, food and feedstuffs. Keep container closed to prevent contamination.
Engineering Controls: If user operations generate dust or fumes,
ventilate area to prevent accumulation.
Personal Protection:
Inhalation: Use appropriate respiratory protection where atmosphere
exceeds recommended limits. Occupational exposure limits (OEL's): TLV
(as Cd): ppm; 0.01 mg/m3 A2 (ACGIH 1996).
MAK: Class III A2 (1996).
Skin: Protective clothing such as long sleeves or a lab coat
should always be worn when working with this material. Open shoes should
not be worn either. When handling heated materials, also be sure to use
heat-resistant gloves, boots and face protection.
Eye: Always use safety glasses, even for work with small
quantities, such as the loading of small chunks into a tungsten basket
for vacuum evaporation.
Boiling Point/Range: Not applicable, material sublimes at 980° C
(1796° F)
pH: Not applicable
Vapor Pressure: Negligible at room temperature
Viscosity: Not applicable
Relative density (water = 1): 4.8
Water solubility: Insoluble
Octanol/Water Partition Coefficient in Kow: Specific value not known
Melting/Freezing Point: Not known
Evaporation Rate: Material sublimes at 980° C (1796° F)
Chemical Stability: The product is stable Conditions to Avoid: Avoid contact with strong oxidizers, acids, excessive heat, sparks or open flame or dust accumulation. Incompatibility with: Strong oxidizing agents, acids, and heat. Hazardous Products of Deposition: Sulfur oxides and hydrogen sulfide. Reactions with Air and Water: Does not react with air, water or other common materials.
Summary: Material considered carcinogenic to humans. Inhalation of
dust of the material can have harmful effects on the kidneys
(impairment) and bone (bone weakness).
Component:
LC50 (INHL): Mouse Not known
Skin Effects: Specific effects are not known however it is generally
thought that skin contact should be avoided at all times through the use of
protective clothing, gloves, and eye protection.
Acute Oral Effects: Diarrhea and nausea
Acute Inhalation Effects: Cough
Subchronic Effects: Not known however material is carcinogenic to
humans and is believe to be a mutagen as well.
Chronic Effects/Carcinogenicity:
Carcinogenic to humans
Reproductive/Development Effects:
Mutagenic
Exotoxicity: In the food chain important to humans, bioaccumulation takes place, specifically in crustacea and plants. It is strongly advised not to let the chemical enter into the environment because it persists in the environment for a very long time. Environmental Fate: No information found in our selected references. Bioaccumulation: Does occur.
Consult local regulatory authorities.
Proper Shipping Name: Cadmium Compound DOT Hazard Class: Toxic UN/NA ID: UN2570 Packing Group: III Labels: 0 Marine Pollutant: Not known NAER Guidebook: Not known DOT Status: Toxic Class 6.1
TSCA: This product is listed on the TSCA 8(b) inventory. California Prop. 65: Proposition 65 requires manufacturers or distributors of consumer products into the State of California to provide a warning statement if the product contains ingredients for which the State has found to cause cancer, birth defects or other reproductive harm. If this product contains an ingredient listed by the State of California to cause cancer or reproductive toxicity, it will be listed below: This material is thought to be carcinogenic to humans and a mutagen as well.
Disclaimer of Liability: Caution! Do not use SPI Supplies products or materials in applications involving implantation within the body; direct or indirect contact with the blood pathway; contact with bone, tissue, tissue fluid, or blood; or prolonged contact with mucous membranes. Products offered by SPI Supplies are not designed or manufactured for use in implantation in the human body or in contact with internal body fluids or tissues. SPI Supplies will not provide to customers making devices for such applications any notice, certification, or information necessary for such medical device use required by US FDA (Food and Drug Administration) regulation or any other statute. SPI Supplies and Structure Probe, Inc. make no representation, promise, express warranty or implied warranty concerning the suitability of these materials for use in implantation in the human body or in contact with internal body tissues of fluids.
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