問題一覧
1
It is achieved by undertaking all activities involving chemicals in such a way to ensure the safety of human health and environment.
Chemical Safety
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Chemical safety has many scientific and technical components. Among these are **********, *************, and the process of chemical recess easement which requires a detailed knowledge of exposure and biological effects.
Toxicology
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The physical hazard of a chemical include its
flammability and reactivity
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it is the tendency of a chemical to burn.
flammability
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the flashpoint auto ignition temperature and flammable limits of the material may be found in the
safety data sheets
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is the potential of the material to explode or react violently with air, water or other substances upon contact
reactivity
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the SDS furnishes this information in the
stability and reactivity data section
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What are the possible Routes of Entry?
skin and eye contact, inhalation, ingestion, and injection
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It is the ability of a chemical substance to cause harm
toxicity
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it is the likelihood that a material will cause harm under the conditions of use
hazard
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Involve the area of the body in contact with the chemical.
Local injuries
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This involves tissues or organs other than the contact site where toxins have been transported through the bloodstream
systemic injuries
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Results from a single, short exposure. Effects usually appear quickly and are usually reversible.
acute
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Results from repeated exposure over a long period of time. Effects are usually delayed and gradual and may be irreversible.
chronic
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Many chemicals have been evaluated for their ability to cause cancer. The risk of developing cancer from exposure to a chemical increases with the length of exposure and with the exposure concentration.
Carcinogen
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This term is used when there is clear evidence of the ability to cause cancer in humans.
Human Carcinogen
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This refers to chemical that have been shown to cause cancer in two or more animal species and are, therefore suspected in humans.
Suspected Human Carcinogen
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This maybe lethal to the fertilized egg, embryo or fetus, may be teratogenic, may retard growth, or may cause post-natal functional deficits.
Embryotoxins
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A chemicals which affect the reproductive system including mutagens.
Reproductive Toxins
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What is GHS?
Global Harmonized System
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It defines and classifies the hazards of chemical products and communicate health and safety information on labels and safety data sheets.
GHS
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What does GHS stand for in the context of chemical labeling
Global Harmonized System
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What is the primary goal of GHS labeling?
To harmonize and standardize chemical labeling globally
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What does the Flame pictogram indicate in GHS
Flammable
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What does the skull and crossbones pictogram represent in GHS?
Toxic
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Which signal word is used for a more severe hazard in GHS?
Danger
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What does the acronym SDS stand for in the context of GHS?
Safety Data Sheet
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In GHS, what does a red diamond-shaped pictogram with a black exclamation mark represent?
Irritant
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Which GHS hazard class does a biohazard symbol represent?
Health Hazards
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What information is typically found in the GHS signal word section on a label?
Indication of severity
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What is the definition of energy?
The ability to do work or transfer heat
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What is the study of energy transformation called?
Thermodynamics
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What is the SI unit of energy
Joules
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Define Thermal Energy
Energy associated with the motion of atoms and molecules.
35
What is Radiant Energy
Solar Energy from the sun
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What does Chemical Enegy refer to?
Energy stored within the structural unit of chemical substances
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What is the internal energy of a system?
The sum of kinetic and potential energies of all components
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How is the calorie defined?
The amount of energy required to raise the temperature of one gram of water by degree celsius
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What is the primary source of Radiant Energy for Earth?
Solar energy from the sun
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Is temperature a measurement of Thermal Energy?
No
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What is Kinetic Energy?
Energy related to an object's motion
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How is Kinetic Energy (EK) calculated?
EK = ½mv²
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What is Potential Energy?
Energy related to an object's position in a force field
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What does Electrostatic Potential Energy (EPEgrav) calculated?
EPEgrav=mgh
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What does Electrostatic Potential Energy refer to in molecules?
Energy related to charges and their separation
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What are the charges involved in Electrostatic Potential Energy?
Q1 and Q2
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What is the proportionality constant in the Electrostatic Potential Energy equation?
8.99×10⁹ Jm/C²
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Why is Electrostatic Potential Energy higher for like molecules closer to each other?
Due two electrical force of repulsion
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What is Thermodynamic system?
The part focused on, including the molecules of interest