Specification for ethyl ester
Ethyl ester is also a commonly used agent in the chemical industry. Its quality is clear and fragrant, it is an essential material for organic synthesis, and it is also widely used in paints and fragrances. The specifications are as follows:

First, properties
In terms of view, ethyl ester is clear and transparent, like the light of the mirror, its gas is fragrant, volatile, and it is liquid at room temperature and pressure.

Second, quality index
1. ** Purity **: The purity of ethyl ester is very important. For high-quality products, the purity should not be less than [X]%, and the content of impurities must be extremely small. If there are many impurities, it will affect its use, in chemical reactions, or cause side reactions, and also hinder the quality of the product.
2. ** Moisture **: The amount of moisture should be strictly controlled. Generally speaking, it should not exceed [X]%. Water is stored in it, or ethyl ester is hydrolyzed, causing quality deterioration, and it can also disturb its process in specific reactions.
3. ** Acidity **: Based on acetic acid, the acidity should be below [X]. Excessive acidity will corrode the appliance, and in some reactions, it will interfere with the balance of the reaction and affect the quality and quantity of the product.

III. Packaging and Storage
1. ** Packaging **: Ethyl ester packaging, mostly in special barrels. The barrel must be of good quality, resistant to corrosion, and tightly sealed to prevent leakage. When the product name, specification, batch and other important items are marked outside the barrel for identification and management.
2. ** Storage **: Store in a cool and ventilated place, away from fire and heat sources. The storage temperature should be controlled below [X] ° C, protected from direct sunlight. With oxidants, acids and alkalis, etc., it should be stored and transported separately. It must not be mixed to prevent dangerous reactions.

IV. Transportation Requirements
When transporting, ensure that the container does not leak, collapse, fall, or damage. Transportation vehicles should be equipped with corresponding fire equipment and leakage emergency treatment equipment. During driving, prevent exposure to the sun, rain, and high temperature. Highway transportation, drive according to the specified route, and do not stop in residential areas and densely populated areas.