[Chemical Knowledge]：Specification for storage and transportation of zinc chloride

Zinc chloride in the field of chemical production of raw materials in the safety of storage and transport specifications

1. Introduction

Zinc chloride as a common chemical production of raw materials, widely used in various industrial fields. However, due to its corrosive and toxic properties, strict compliance with relevant safety regulations is required during storage and transportation. This article will introduce in detail the physical data, toxicity/health hazards, first aid measures, fire control measures, leakage emergency treatment, operation disposal and storage, contact control/individual protection, transportation information and regulatory information of zinc chloride, so as to ensure the safe storage and transportation of zinc chloride in the field of chemical production raw materials.

2. physical property data

zinc chloride as a colorless or white crystalline powder with extremely strong hygroscopicity. Its melting point is 290 ℃, boiling point is 732 ℃, relative density is 2.907. Zinc chloride is soluble in water, methanol, ethanol, insoluble in ether, acetone, benzene and other organic solvents.

3. Toxicity/Health Hazard

Zinc Chloride is an eye, skin and respiratory irritation. Inhalation of zinc chloride dust may cause respiratory irritation, bronchitis and pneumonia; skin contact may cause dermatitis and eczema; ingestion may cause gastrointestinal irritation, nausea, vomiting and diarrhea. Long-term exposure to zinc chloride may cause liver and kidney damage.

4. first aid measures

in case of eye contact with zinc chloride, rinse immediately with plenty of water for at least 15 minutes and seek medical advice. In case of skin contact, remove contaminated clothing, rinse the skin with plenty of water, and seek medical attention. If ingestion of zinc chloride, should immediately gargle, drink milk or egg white, and seek medical attention.

5. fire-fighting measures

zinc chloride does not burn, but may release toxic gases in case of water. In a fire, dry powder, carbon dioxide or foam fire extinguishers should be used to extinguish the fire, and water or foam fire extinguishers should be avoided.
Emergency Treatment of
6. Leakage

In case of zinc chloride leakage, measures shall be taken immediately to prevent the leakage from spreading, collect the leakage and mix it with sand or other non-combustible adsorbents for absorption, and then transport it to the waste treatment site for disposal. In case of a large amount of leakage, embankments or pits shall be built and transferred to the tank car or special collector by pump.

7. operation, disposal and storage

shall be tightly sealed during operation to provide adequate local exhaust and full ventilation. Operators must be specially trained and strictly abide by the operating procedures. Operators are advised to wear self-priming filter dust masks, chemical safety goggles, anti-poison penetration overalls and rubber gloves. Keep away from fire and heat sources. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Avoid creating dust. Avoid contact with oxidizing agents. Handle lightly to prevent damage to packaging and containers. Equipped with corresponding types and quantities of fire fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances.

stored in a cool, ventilated warehouse. Keep away from fire and heat source. Should be stored separately from the oxidant, do not mix storage. The storage area shall be provided with suitable materials to contain spills. The occupational exposure limits for zinc chloride
the

8. Exposure Control/Personal Protection
are as follows: 2 mg/m ³ for PC-TWA (time weighted average allowable concentration) and 3 mg/m ³ for PC-STEL (short exposure allowable concentration). The monitoring method is solvent desorption-atomic absorption spectrometry or spectrophotometry.
In terms of
engineering control, it should be tightly sealed to provide sufficient local exhaust and comprehensive ventilation. In terms of respiratory system protection, when the concentration in the air exceeds the standard, you must wear a self-priming filter dust mask. Emergency rescue or evacuation, should wear air respirator. For eye protection, wear chemical safety goggles. Body protection, wear anti-poison penetration overalls. For hand protection, wear rubber gloves. For other protection, smoking, eating and drinking are prohibited at the work site. After work, shower and change clothes. Maintain good hygiene habits.

9. Transport Information and Regulatory Information

The UN number of zinc chloride is UN No.1759, and transportation should be carried out in accordance with the rules for the carriage of dangerous goods. During transportation, prevent high temperature, humidity and direct sunlight, keep the container sealed well, and avoid mixing with oxidants and other substances.