Paint flutters into the office building employees wear gas masks

The day before yesterday, Kunming Hongcheng Plaza was filled with pungent odors. Office workers had to wear masks and gas masks to work. The culprit was the paint used in the construction of the three-dimensional intelligent garage of the Hongcheng Plaza separated by a wall. At present, the Garage Construction Party has been ordered to stop the construction of the Hongcheng Plaza Management Office and make corrections to the above issues.

Fans are still smelling

Yesterday, the 10th floor with the worst smell of Hongcheng Square, the air was much better than the previous days. The staff in the building said: “Since yesterday afternoon, the situation has been much better. Today, most of my colleagues did not wear masks. Only some individuals with weak constitutions are still wearing it.” Because of the slower air circulation, the 10th floor The company's two fans are still running to disperse the odor as soon as possible.

Around 1 midday, a person in charge of the garage construction party came to check the distribution of the odor. According to him, the workers had previously overhauled and maintained the steel framework in the parking garage of Hongcheng Plaza and used anti-rust paint. The odor generated by the paint was scattered through the vents into the office building. At present, the construction site has been suspended. The construction party has blocked the gap between the garage and the office building, blocking the odor as much as possible into the office building.

Cai Hong, the manager of the property management department of Hongcheng Plaza Management Office of Kunming Hongfeng Property Management Co., Ltd., said that the contractor has been ordered to stop work for rectification. At present, there are no reports that employees are unable to attend due to inhaling pungent odors.

Paint smell can cause respiratory damage

According to the introduction of Tian Yingchun, deputy chief physician of the Department of Respiratory Medicine of Honghui Hospital, the benzene, formaldehyde, and aromatic hydrocarbons contained in the paint will cause respiratory and lung damage to the body, causing cough, chest tightness, wheezing, and accompanied by dizziness and fever. It may even induce asthmatic diseases.

If inhaled for a long time, it will affect the human blood and circulatory system, affect the bone marrow hematopoietic function and human immunity, cause respiratory and nervous system lesions, and even induce lung cancer.

Tian Yingchun introduced that once such a situation occurs in a confined space, indoor ventilation should be improved as quickly as possible, or outside the contaminated environment should be taken outside to breathe fresh air. Through proper exercise, blood circulation and respiratory capacity should be strengthened, and metabolism should be inhaled as much as possible. The harmful gases are discharged. If the situation is more serious, you should seek medical advice according to the symptoms.

Tips

Office family has a particular emphasis on breathing

1 As for the air pollution in the office building, most people can improve their physical condition through diet and increase their resistance;

2 By eating more wolfberry, pear, lily, etc. to regulate respiratory health, and drink more green tea;

3 Place green plants such as green radish and spider plants in the office to resist radiation from computers;

4 Offices that can open windows will open windows to dilute harmful gases. White-collar workers need to take a break to go for a walk;

5 Dust removal equipment should be installed in rooms with many copy machines and heavy workload to reduce dust.

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Cobalt Compounds:

1. Cobalt oxide: usually cobalt oxalate or cobalt carbonate as raw materials calcined at 500-600 ℃ cobalt oxide, the main reaction is as follows:

CoC2O4 == CoO + CO + CO2; CoCO3 == CoO + CO2

2. Cobalt hydroxide: It can usually be neutralized with sodium hydroxide solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:

Co2 ++ 2OH - == Co (OH) 2 Co (OH) 2 + O2 + 2H2O == 4Co (OH) 3

3. Cobalt chloride: usually available cobalt powder with dilute hydrochloric acid into cobalt chloride solution, and then crystallized by evaporation of cobalt chloride crystals, the main reaction is as follows: Co + HCl --- COCl2; Co + H2SO4 --- COSO4

4. Cobalt sulfate: usually cobalt oxide as raw material, dissolved in sulfuric acid after evaporation crystallization of pink cobalt sulfate crystals, the main reaction is as follows: CoO + H2SO4 == CoSO4 + H2O

5. Cobalt carbonate: It can usually be obtained by precipitation with sodium carbonate solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:

CoCl2 + Na2CO3 == CoCO3 + 2NaCl

6. Cobalt oxalate: It can usually be precipitated with ammonium oxalate solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:

(NH4) 2C2O4 + CoCl2 == CoC2O4 + 2NH4Cl

7. Oxidation of high cobalt: cobalt carbonate or cobalt oxalate can usually be heated in oxygen, further oxidation obtained, the main reaction is as follows:

3CoCO3 + O2 ==== Co2O3 ++ CO2; CoC2O4 + O2 ==== Co2O3 + CO2 + CO

8. Cobalt Hydroxide: 4Co (OH) 2 + O2 + 2H2O === 4Co (OH) 3; 2Co (OH) 2 + NaClO + H2O == 2Co (OH) 3 +

2Co (OH) 3 + 6HCl == 2CoCl2 + Cl2 + 6H2O

Cobalt Compounds

Cobalt Compounds,Spinel Compounds,Multi-Functional Electrolytic Copper,High-Volume Electrolytic Copper

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