Chemicals are widely used for scientific and laboratory activities. They are used in various manufacturing industries, government research organizations, school laboratories, agricultural and pharmaceutical industries, etc.Chemicals and laboratory reagents must be handled and stored with care, because they could react adversely in unfavorable environments. Hence, if you need chemicals for your home science projects, then you would do better by purchasing those chemicals that are available in the form of household items.Some common household items which contain chemicals:
Nail polish remover
Controlled chemicals:The laboratory chemicals are broadly classified into 2 groups: List 1 and List 2. The sales of chemicals that fall into these two lists are highly controlled. You would only be able to purchase them, if you are fully able to satisfy the seller that you would not be misusing these chemicals. Usually the consumer is required to state the specific details, including how he intends to use the chemical.The sellers typically have to obtain permits for the legal sale of these products.Chemicals are available in different grades according to their purity levels:
The reagent grade, which is the highest quality chemical, is suitable for all purposes and is used for carrying out scientific experiments on living organisms.
The laboratory grade chemicals can be used for all non-biological activities. However, it is unfit to be packed and sold for consumption purposes.
The third is the technical grade, which is mainly used for industrial and manufacturing purposes. Also useful in laboratories, when high levels of accuracy are required.
Sometimes, there is not much difference between the reagent and technical grade, other than the fact that the former has been tested for purity while the latter hasn’t.Providing proper packaging:Chemicals are sold using different techniques. Some chemicals which are dry at STP are sold in a powdered form. These are wrapped or sealed in zipped bags. Other chemicals, which are in a liquid state, are sold in:
Plastics, if they are non-corrosive.
Glass, if they are acidic and act as solvent for the plastic.
Any chemical that you purchase should come with the following labeling:
The scientific name
The level of concentration and purity
Safety precautions and First Aid instructions
The method of disposal
Date of purchase
Date of expiry
The level of solubility
Quality matters:While purchasing chemicals, keep a check on quality. It is better to purchase a more expensive chemical that is safe to use, rather than a cheaper variety, which could prove potentially hazardous.Chemicals are available in large quantities, leading to a number of difficulties such as wastage of resources, loss of money, and it is pretty difficult to handle and store them. Therefore, you should find a seller who provides laboratory use products in small amounts, as per your requirement.