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What is MSDS?
Material Safety Data Sheet (MSDS) is a table about data regarding the properties of a particular substance, which may concern instructions for the safe use and potential hazards associated with a particular material or product. Therefore, MSDS is important and necessary for chemicals users.
The sheet aims to offer workers and emergency personnel with procedures for handling or working in a safe way, and includes information such as physical data (melting point, boiling point, flash point, hardness, ultimate tensile strength, density, etc.), toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and spill handling procedures. The exact format for MSDS can vary from countries to countries by respective national requirement.
For example, below is part of the MSDS of tungsten heavy alloy:
MATERIAL SAFETY DATA SHEET
SECTION 1. CHEMICAL IDENTIFICATION
Name: |
Tungsten Heavy Alloy |
Synonyms: |
High Density Tungsten Alloy; Tungsten Alloy containing Nickel and
Iron; Tungsten Alloy containing Copper; Tungsten Alloy containing
Nickel and Cobalt; Tungsten Alloy containing Nickel, Iron and
Cobalt |
CAS #: |
7440-33-7(Tungsten), 7440-02-0 (Nickel), 7440-50-8 (Copper),
7439-89-6(Iron), 7440-48-4 (Cobalt) |
SECTION 2. COMPOSITION/INFORMATION ON INGREDIENTS
Chemical Family: Refractory Metal Alloy
Chemical Formula: W+Ni+Fe, W+Cu, W+Ni+Cu, W+Ni+Co, W+Ni+Fe+Co
Material |
% |
OSHA TWA |
ACGIH TWA |
ACGIH STEL |
Tungsten |
70 to 99 5 |
5 (insoluble)
1 (soluble) |
5 (insoluble)
1 (soluble) |
10 (insoluble)
3 (soluble) |
Nickel |
0 to 21 |
1 (soluble. &
insoluble.) |
1.0 (insoluble)
0.1 (soluble) |
|
Iron |
0 to 9 |
N/A |
N/A |
N/A |
Copper |
0 to 25 |
0.1 (fume),
1 (dusts & mists) |
0.2 (fume)
1 (dust & mists) |
N/A |
Cobalt |
0 to 4 |
0.1 |
0.05 |
0.02 |
(All exposure limits in mg/m3)
SECTION 3. HAZARDS IDENTIFICATION
The terms "hazardous" and "hazardous materials" as used within this MSDS should be interpreted as by, and in accordance with, the OSHA Hazard Communication
Standard (29CFR1910.1200) including cited appendices, lists, references, etc.
Primary routes
of entry: |
Inhalation, ingestion, skin or eye contact (for dusts, mists, powder
and fume) |
Effects of
overexposure: |
No specific data, testing or information has been found for the chemical compounds that comprise this product. However, general comments are made below for the individual elements. |
Carcinogenic
assessment: |
Cobalt - IARC 2B; Nickel - IARC 2B, NTP 2; |
Note: IARC 2B - The agent is possibly carcinogenic to humans. This category is generally used for agents for which there is limited evidence in humans in the absence of sufficient evidence in experimental animals. It may also be used when there is inadequate evidence of carcinogenicity in experimental animals.
NTP 2 - Substances or groups of substances which may reasonably be anticipated to be carcinogens. "Reasonably anticipated to be carcinogens" defines carcinogens for which there is limited evidence of carcinogenicity in humans and/or sufficient evidence of carcinogenicity in experimental animals.
You could get full information about MSDS of tungsten heavy alloy here.
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