Classification of dangerous goods by hazard level (ADR hazard class) in Russia is based on GOST 19433-88 "Dangerous goods. Classification and labeling," introduced in 1990.
Classes of Dangerous Goods:
Class
Subclass
Name
1
explosive materials
1.1
explosives with a mass explosion hazard
1.2
explosives with no mass explosion...
How to Increase the Fire Resistance of Materials?
Flame retardants are used to improve the fire resistance of materials.
Flame retardants are substances added to materials of organic origin to increase their fire-resistant properties. They slow down the combustion and ignition of the material.
The action of flame retardants is based on:
1. melting...
Mineral Fertilizers
Everyone knows that various fertilizers, both mineral and organic, are introduced into soil to increase its fertility.
Today the market offers a huge variety of products for mineral soil enrichment. Science continually studies and invents new and new combinations of mineral components, such as potassium, phosphorus, ammonia,...
A flame retardant is an additive (of organic origin) used to increase fire protection. Flame retardants slow down the combustion and ignition of a material through combustion-retarding substances (ammonium chlorides and phosphates, borax).
Fire protection is discussed in more detail here.
Examples of fire-protective materials include di-ammonium...
Nutrigation (fertigation) is a method of delivering pure plant nutrients through irrigation systems. Drip irrigation is one example. This is an extremely effective and highly economical method of feeding plants without unnecessary losses. The formulation is selected very precisely for each crop and matches its needs and specific stage of...
Hydrogen Peroxide in Textile Production.
When hydrogen peroxide interacts with organic materials, it undergoes an oxidation reaction with them. Visually, this appears as lightening (bleaching) of the material's surface. For this reason, peroxide has long been used for a considerable time to bleach materials such as wool, leather, silk, and other...
Pool Cleaning with Hydrogen Peroxide
Many owners of country properties now build artificial ponds/pools. Such water features are mainly used during the summer season. However, owners often encounter water blooming, which gives the water an unattractive appearance. Greenish tints look unappealing and discourage swimming in cloudy water.
To solve...
Hydrogen peroxide is used in the production of porous concrete and ceramics. In certain reactions of peroxide, or during peroxide decomposition, gas is released, and this property is the basis for producing porous materials, such as foam rubber.
The main advantage of peroxide is that gas is released without additional heating, and ordinary water...
Wood Bleaching.
Wood exposed to the open sky undergoes active environmental impact. Factors such as wind, water, and ultraviolet radiation lead to darkening and aging.
Specialized products based on hydrogen peroxide, oxalic acid, and others are used for lightening.
Hydrogen Peroxide:
It should be noted that oak items take on a greenish tint when...
Hazard signs are specially designed international symbols used to warn about dangerous materials.
The symbols listed below are used for visual identification during the transportation of chemical materials.
Many countries require such signs to be present on vehicles or transport containers carrying dangerous goods.
Hazard Signs Used in the...
