According to the Identification of Major Hazard Sources of Hazardous Chemicals , the critical amoun

First of all, according to the "Identification of Major Hazard Sources of Hazardous Chemicals".

The critical amount of ethylene is 50 tons, and the standard is GB18218-2009 Identification of Major Hazard Sources of Hazardous Chemicals; Secondly, what do you mean by 30 "l"? The critical quantities are all measured in "tons".

<> ethylene is the simplest olefin.

Molecular formula C H. A small amount is present in plants and is a metabolite of plants that slows down plant growth and promotes leaf drop and fruit ripening. Colorless flammable gas. Melting point 169, boiling point . Almost insoluble in water and insoluble in ethanol.

Soluble in ether and acetone.

Ethylene is made up of two carbon atoms and four hydrogen atoms.

composition of compounds. The two carbon atoms are connected by a double bond with each other. Ethylene is found in some tissues and organs of plants and is made of methionine.

It is transformed under the condition of sufficient oxygen supply.

Ethylene is a synthetic fiber, synthetic rubber, synthetic plastic (polyethylene and polyvinyl chloride.

It is also used in the manufacture of vinyl chloride, styrene, ethylene oxide, and acetic acid.

Acetaldehyde, ethanol and explosives, etc., can also be used as ripening agents for fruits and vegetables, and is a proven plant hormone.

Ethylene is one of the largest chemical products in the world, the ethylene industry is the core of the petrochemical industry, and ethylene products account for more than 75% of petrochemical products in the national economy.

occupies an important position. The world has taken ethylene production as one of the important indicators to measure the development level of a country's petrochemical industry.

The physiological functions are: triple reaction, promoting fruit ripening, promoting leaf senescence, inducing adventitious roots and root hair genesis, breaking the dormancy of plant seeds and buds, inhibiting the flowering of many plants (but can induce and promote the flowering of pineapple and its congeners), and changing the direction of flower sex differentiation in the early stage of flower development in dioecious plants.

The critical amount of ethylene is 50 tons.

The 30 "l" you describe refers to "liters"? The critical quantities are all measured in "tons".

According to the provisions of the "Identification of Hazardous Chemicals Heavy Sales and Major Hazard Sources", the critical amount of ethylene is 30 tons. （）

a.Positive reputation.

b.Mistake. Correct Qing Dou imitation answer: b

1. The critical amount of ethylene is 50 tons.

2. The standard is GB18218-2009 for the identification of major hazard sources of hazardous chemicals.

Ethylene is a compound made up of two carbon atoms and four hydrogen atoms. The two carbon atoms are connected by a double bond to each other. Ethylene exists in some tissues and organs of plants, and is converted from methionine under the condition of sufficient oxygen supply.

Ethylene is the basic chemical raw material of synthetic fibers, synthetic slippery rubber, synthetic plastics (polyethylene and polyvinyl chloride), synthetic ethanol (alcohol), and is also used in the manufacture of vinyl chloride, styrene, ethylene oxide, acetic acid, acetaldehyde, ethanol and explosives, etc., and can also be used as a ripening agent for fruits and vegetables, and is a proven plant hormone.

When the car is a major source of danger, the critical amount of ethylene is 40 tons. （）

a.That's right. b.Mistake.

Correct Closed Answer: B

For the specified quantity of a certain or class of hazardous chemicals, if the quantity of hazardous chemicals in the prudential unit is equal to or exceeds the quantity, the unit is designated as a major hazard source. A major hazard is a unit in which hazardous substances are produced, processed, handled, used or stored on a permanent or temporary basis, and the quantity of hazardous substances is equal to or exceeds a critical amount (including facilities and premises).

The critical amount of ethylene is 50 tons.

The 30 "l" you describe refers to "liters"? The critical quantities are all measured in "tons".

The critical amount of ethylene is 50 tons, and the standard is GB18218-2009 Identification of Major Hazard Sources of Hazardous Chemicals;

If a hazardous chemical has multiple hazards, it shall be determined according to the critical amount of () in the rapid judgment of its mu of dispersion.

Highest. Lowest (correct answer).

Average. Relatively.

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