Alkalis
The opposotite of an acid an acid
and an alkali neutralize each other
and react to from water and a salt
(base) (αλκάλιο).
Acid
A water- soluble, sour chemical
compound that produces positive
ions in solutions.
Basic and intermediate chemicals
Are called commodity chemicals and
are produced mainly by large
companies and as byproducts of
petroleum reefing, using common
manufacturing processes.
Agricultural chemical
A substance (chemical) that is used
in agriculture, e.g. pesticide,
insecticide, herbicide.
Plastics and fibres
Man –made polymers, made by the
chemical industry, using raw
materials obtained from crude oil.
Benzene
A colourless liquid, flammable,
aromatic hydrocarbon that boils at
80.10 c and feezed at 5.4-5.50 c. it is
used as a solvent and in making
other chemicals, e.g. dyes and
drugs.
Aromatics
Compound with a benzene–like ring.
(Αρωματικές ενώσεις)
Carbonates
A compound which contains carbon
and oxygen. E.g. calcium carbonate
(limestone).
Chlorides
A compound containing chlorine and
another element
Ethylene
The simplest olefin, a sweet smelling
gas used to make plastics.
Fluorides
A compound which occurs naturally
in both ground water and surface
water
Industrial gas
Used in an industrial process, e.g.
the production of steel, plastics
chemicals pulp and paper
microchips, auto parts, rubber,
textile, glass.
Methanol
Colourless, toxic, flammable alcohol
with the formula CH3OH, mixes with
water, either alcohol.
Nitrates
A compound containing NO3 and
including nitrogen and oxygen with
more oxygen than a nitrate. (νιτρικό
άλας )
Olefins
Chemically active hydrocarbons,
used to make plastics.
Oxides
A compound of oxygen and another
element. (οξείδιο)
Polyethylene
(Πολυαιθυλένιο) a polymer made
from ethylene: it is a tough, study
plastic film having very good, low
temperature characteristics.
Polypropylene
A derivative of propylene: it is used
to make plastics and fibres with a
wide range of applications, e.g.
(kitchen tools).
Fungicide
A chemical that kills or destroys
fungi
Herbicide
A substance that destroys unwanted
plants e.g. weeds.
Insecticide
A substance that kills or destroys
insects.
Pesticide
A substance that kills or destroys
small animals.
Pest management
The reduction of pest problems.
Nutrient management
The use of a combination of
fertilization techniques to ensure
healthy growth of crops.
Soil management
Can improve soils in terms of their
fertility.
Sustainable production systems
A sustainable production system
benefits society, the manufacturer
and the customer.
Easy flow
Describes a liquid that runs easily.
Flame resistant
Describes a substance that can
prevent burning.
Flame retardant
Describes a substance that can
reduce, or delay burning.
Heat resistant
Relating to the ability of a material
the prevent heat from flowing
through it.
Stiff
Describes a material that does not
bend easily.
Tough
A material that is hard: difficult to
break.