lseee101a 9119a chemicals. chemicals everything is a chemical. all matter whether solid, liquid,...

LSEEE101A9119A

Chemicals

ChemicalsChemicalsEverything is a chemical.

All matter whether solid, liquid, gas, pure or as a mixture is therefore a chemical.

Chemistry is the study of matter and its interactions

Generally the term ‘”Chemical” refers to a substance that appears homogeneous.

(the same throughout its structure)

Natural Chemicalsare all safe!

• Cyanide• Arsenic• Strychnine

Are all natural chemicals

CyanideCyanideFound in apple, mango, peach, and bitter almond seeds.

Used in the mining of gold and silver and in the electroplating industry

Nazis used hydrogen in the gas chambers during the Holocaust as well as some states of the USA for execution of murderers

Forage sorghums can kill cattle

ArsenicArsenic• Found as an ore.• Used to kill insects, bacteria, and fungi• Wood treatment• Semiconductor industry• Lazar diodes• As an alloying agent in bullets• USA used it as a chemical warfare agent after the

first would war and defoliant in the Vietnam war

http://safeworkaustralia.gov.au/

Death Cap Mushroom

Strychnine

Hemlock

How Can Chemicals Affect You?

Poisonous or toxic Corrosive Irritant a Sensitiser Explosive or flammable Asphyxiate

The chemical can be;

How Can Chemicals Enter You?

Eating or drinking

Inhaling

Skin Adsorption

Gas or dust

Or mucus membranes

How Can Chemicals Enter You?

Skin Adsorption1 in 4 chemicals can enter you via the skin

Three affects the chemical can have on the skin

1. Primary irritation

2. Penetrate and react with the skin tissue

3. Penetrate through the skin

Dermatitis

Skin sensitization

Affect internal organs

ChemicalsCan affect you in multiple ways

Petrol• If swallowed poison you• Concentrated Vapours can make you pass out• If catches on fire can burn you

Paracetamol• In small doses reduces pain• In large doses poisons you by destroying your liver

Lead• In solid state may damage your foot• In powered / gas state heavy metal poisoning

Multiple effects

Dosage

State

Chemicals

Can affect you immediately

Have long term slow effects

Swallowing cyanide

Asbestos or Lead Poisoning

Acute Effect

Chronic Effect

Chemical Classification CAS Number

UN Number

NA Number

Chemical Abstracts ServiceA subsidiary of the American Chemical Society

Assigned by the United Nations Committee of experts on the Transport of Dangerous GoodsUN0001 to about UN3500A chemical in its solid state may receive a different UN number than the liquid phase if their hazardous properties differ significantly

North America, also known as DOT numbers are issued by the United States Department of Transportation and are identical to UN numbers

Chemicals

Are regarded as“Hazardous Substances”

And as such are covered under COP

CONTROL OF WORKPLACE HAZARDOUS SUBSTANCES

STORAGE AND HANDLING OF DANGEROUS GOODS

Dangerous GoodsClassified into 9 classes

1. Explosives2. Gases3. Flammable Liquids4. Flammable Solids5. Oxidizing Substances6. Toxic and Infectious Substances7. Radioactive Substances8. Corrosives9. Miscellaneous Dangerous Substances



FlammableNon-flammable, non-toxicToxicOxidizing gas

FlammableNon-flammable, non-toxicToxicOxidizing gas

1. Flammable2. Non-flammable, non-toxic3. Toxic4. Oxidizing gas



1. Flammable2. Spontaneously combustible3. Emits flammable gases when wet



1. Oxidizing agent2. Organic peroxide


1. Explosives2. Gases3. Flammable Liquids4. Flammable Solids5. Oxidizing Substances6. Toxic and Infectious Substances7. Radioactive Substances8. Corrosives9. Miscellaneous Dangerous Substances1. Toxic

2. Infectious



(Category depends on level of radioactivity)

MSDSMSDSMaterials Safety Data Sheet

• Clear identification• recommended uses• chemical and physical properties• ingredients (with some provisions for confidentiality)• health hazard information• precautions for safe use and handling• name, address and telephone number of importer or

manufacturer in Australia (including an emergency number)• date of review, or if not yet reviewed, its date of

preparation.

Must have on it for each chemical;

HAZCHEMWarning Plate

LSEEE101A9119A

Heights

LSEEE101A9119A

Confined Spaces

Confined Space Is Defined as

• is at atmospheric pressure during occupancy• is not intended or designed primarily as a place of

work• may have restricted means for entry and exit.• and may;

An enclosed or partially enclosed space which:

i. Have an atmosphere which contains potentially harmful levels of contaminant

ii. Not have a safe oxygen level

Confined Spaces Include storage tanks, tank cars, process vessels, boilers,

pressure vessels, silos and other tank-like compartments

open-topped spaces such as pits or degreasers

pipes, sewers, shafts, ducts and similar structures

any shipboard spaces entered through a small hatchway or access point, wet cargo tanks.

What are the Hazards

Oxygen deficiency Oxygen excess The presence of contaminants Operation of moving equipment Uncontrolled introduction of steam,

water, gas, liquid, or solids Electrocution. Explosion or fire.

Additional Factors

• Noise • Temperature• Radiation within a confined space eg

welders

Work in confined spaces may increase the risk of injury from hazards, such as;

Test Required

• Oxygen content• Airborne concentration of flammable

contaminants• Airborne harmful contaminants, unless

PPE including air supplied respiratory protective equipment is worn

Entry Permit

No one is allowed to enter a confined space without one.

Should state the period of its validity Displayed in a prominent place Name of each person entering Name each person required for

stand-by purposes List tests and isolation points for

entry

lseee101a 9119a chemicals. chemicals everything is a chemical. all matter whether solid, liquid,...

Documents

term chemical

un3500a chemical

chemical warfare agent

gas chambers

liverleadin solid state

skin tissuepenetrate

hazardous properties

alloying agent