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Date Effective........... May 14, 2008
(most recent revision)
Chemical Name/Synonyms... Cadmium selenide
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#01715-AA, -AB, -MB, -SS Cadmium Selenide Powder
and SPI#01715C-AA, -AB, -MB, -SS Cadmium Selenide Chunks
CAS #.................... 1306-24-7
Chemical Formula......... CdSe
Cadmium selenide: 99.997% Molecular weight: 144.33 NFPA Rating: Not known
Emergency overview:
This material is harmful by inhalation, in contact with skin and if
ingested.
Signal Word
Harmful!
Physical Health Hazards:
Harmful by inhalation, in contact with the skin and if swallowed.
Target organ(s): Not known
Personal protection:
Wear approved protective clothing when working with this
material in order to avoid any contact with material at all.
Long sleeves and/or lab coat are recommended to protect against
skin contact. Approved chemical goggles are recommended to protect
against eye contact.
Physical state: Small chunks, 3-12 mm
Color: Black crystals
Odor: None
Odor threshold: No data available
Potential Health Effects:
Routes of exposure
Eye contact, ingestion, skin contact
Signs and Symptoms of Acute Exposure:
Eyes: irritation
Skin: irritation and burns
Ingestion: Toxic
Inhalation: Respiratory toxicity, mucous membrane irritation and cancer
Chronic Health Effects Summary:
Not known.
Conditions Aggravated by Exposure:
No known conditions are aggravated by this material.
Carcinogenicity:
NTP: No
IARC: No
OSHA: No
Explanation of carcinogenicity: None
Take proper precautions to ensure your own health and safety before
attempting to rescue a victim and providing first aid. For specific
information refer to the Emergency Overview in Section of this MSDS.
Inhalation: If symptoms are experienced, move victim to fresh
air, and obtain medical attention.
Eye Contact: Wash eyes with copious amounts of low-pressure
water for at least 15 minutes. If irritation persists,
seek medical advice.
Skin Contact: Flush with plenty of water for 15 minutes. If
irritation persists, seek medical advice.
Ingestion: Adverse health effects due to ingestion to be
expected. Call a physician in all cases, at once, and
seek other medical attention.
NFPA Rating: Not known
Flammability classification:
Not known
Flash Point/Method: Not applicable
Auto-Ignition Temperature: Not known
Flammable Limits: Lower: Not applicable
Upper: Not applicable
Hazardous Combustion Products:
Exposure to water evolves hydrogen selenide which is a
toxic and flammable material.
Special Conditions to Avoid:
Moisture exposure.
Extinguishing Media:
Fires: Do not use water! Do use dry chemical, dry sand,
and dry ground dolomite. But never ever use water on a fire with
cadmium telluride.
Fire Fighting Instructions:
Protective Equipment/Clothing: Wear a NIOSH approved positive
pressure self-contained breathing apparatus and firefighter
turnout gear. Wear long sleeves and chemical goggles for eye
protection. If without risk move material out of the fire area.
Release response:
Wear NIOSH approved respirator, chemical safety goggles,
rubber boots, and heavy rubber gloves. Sweep up product,
if possible and place in a bag and hold for waste disposal.
Keep in dry place and in a way that it will not accidentally
exposed to moisture.
Reportable Quantities: See Section 15: Regulatory information.
Handling: Use full protective gear as described above. Make sure there is sufficient ventilation in the work area. Storage: Keep container dry. Store away from excessive heat and away from moisture. Keep container closed to prevent contamination and oxidation.
Engineering Controls: If user operations generate dust or fumes,
ventilate area to prevent accumulation.
Personal Protection:
Inhalation: Use appropriate respiratory protection at
all times. If product is to be used as part of a vacuum deposition
process, we would recommend that all vacuum pumps be vented to the
outdoors, in order to avoid any possible release of selenium compounds
into the laboratory environment.
Skin: Protective clothing such as long sleeves or a lab
coat should be worn. When handling heated materials, also be sure
to use heat-resistant gloves, boots and chemical goggles.
Eye: Always use safety glasses, even for work with small
quantities, such as the loading of a tungsten basket or boat prior
to making a deposition of the material. Accidents occur when least
expected.
Special note of caution:
If CdSe is evaporated as part of a vacuum thermal deposition, it has been
reported to us that the chamber, upon opening, even after repeated venting
and purge with dry nitrogen, has a very strong odor. We are told that
this order is different from that of any other substance evaporated, it
is reminescent of a garlic/metallic smell and taste.
We have also been told that after repeated and regular exposure, even
outside the lab environment, it seemed one's sweat would have the same
smell characteristic order.
So one should use caution when venting the vacuum chamber in order to avoid
exposure to this odorous compound whatever it might be.
Boiling Point/Range: Not applicable pH: Not applicable Vapor Pressure: Not applicable Vapor Density (Air=1):> 1 Viscosity: Not applicable Specific Gravity: 6.2 Water solubility: Insoluble Octanol/Water Partition Coefficient in Kow: Specific value not known Melting/Freezing Point: 1041° C (1905.8° F) Evaporation Rate: Not applicable
Chemical Stability: The product is stable Conditions to Avoid: Heat, sparks and open flame, and water. Incompatibility with: Acids, acid fumes, and moisture. Hazardous Products of Deposition: Hydrogen selenide and selenium compounds Hazardous Polymerization: Does not occur Reactions with Air and Water: Reacts violently with water.
Summary: Considered to be highly toxic to humans and animals. Component: Cadmium selenide (CdSe) LC50 (INHL): Not known Skin Effects: May be harmful, full extend of effects is not known. Acute Oral Effects: May be harmful but the full effects of such ingestion have not been determined. Acute Inhalation Effects: May be harmful but the full effects of such inhalation exposure have not been determined. Subchronic Effects: Not known Chronic Effects/Carcinogenicity: Not known Reproductive/Development Effects: Not known The full impact of the chemical, physical, and toxicological properties of this product have not been thorough studied and determined.
Exotoxicity: No information found in our select references. Environmental Fate: No information found in our selected references. Bioaccumulation: No information found in our select references.
Bury in an approved land fill site approved for the disposal of chemical and hazardous wastes.
Proper Shipping Name: Cadmium compound DOT Hazard Class: Toxic 6.1 UN/NA ID: #2570 Packing Group: III Marine Pollutant: Not known NAER Guidebook: Not known DOT Status: Toxic Class 6.1
TSCA: All components of this product are listed on the TSCA 8(b) inventory.
If identified components of this product are listed under the TSCA 12(b)
Export Notification Rule, they will be listed below.
TSCA 12(b) Component Listed under TSCA Section
None
SARA Title 3: Section 313 Information/Emissions Reporting (40 CFR 372):
Component Reporting Threshold
CdSe
SARA-Section 311/312: No components present in this product are subject to
the reporting requirements of this statute.
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:
No data has been generated to our knowledge whether this material has
been found to cause cancer, birth defects or other reproductive harm.
Therefore, to be on the safe side, we would advice treating this product
as if it does have those properties and respond accordingly.
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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