China China Gold Supplier for Flavone-8-Acetic Acid - Benzyl chloride – Debon factory and manufacturers

China Gold Supplier for Flavone-8-Acetic Acid - Benzyl chloride – Debon

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China Gold Supplier for Flavone-8-Acetic Acid - Benzyl chloride – Debon Detail:

Physicochemical properties and dangerous characteristics of hydration

Chemical name

Hydrazine hydrate (36% water)

Chemical common name

Hydrated hydrazine

English name of the chemical

hydrazine hydrate

Common name English name

diamide hydrate

Dangerous goods number

82020

2030

CAS.NO

10217-52-4

Main ingredient

Pure

Physical and chemical properties

Appearance and shape

Colorless fuming liquid with a slight ammonia odor.

Melting point °C

-40

Boiling point °C

119

Relative density

1.03

Relative vapor density

No data

Molecular formula

N₂H₄.H₂O

Molecular weight

50.06

Saturation vapor pressure（kPa）

0.67（25℃）

Heat of combustion (Kj/mol)

No data

Critical temperature °C

No data

Critical pressure MPa

No data

Flash point℃

72.8℃

Flash point °C

No data

Fire hazard characteristics

Minimum ignition energy (mJ）

Explosion limit % (V/V）

4.7-100

Solubility

Miscible with water, insoluble in chloroform, ether, miscible in ethanol.

Other physical and chemical properties

Risk overview

Risk category

Class 8.2 Alkaline Corrosives

Route of invasion

inhalation

√

skin

√

ingestion

√

Acute toxicity

LD₅₀

Rat oral: 129 mg/kg

LC₅₀

No data

Occupational hazard classification

Health hazard

Inhale the vapor of this product to stimulate the nose and upper respiratory tract. In addition, dizziness, nausea, vomiting, and central nervous system symptoms can occur. Liquid or vapor can cause irritation to the eye and can cause permanent damage to the eye. Irritating to the skin, can cause severe burns. It can cause poisoning through skin absorption. Can cause dermatitis. Oral causes dizziness, nausea, and later temporary central respiratory depression, heart rhythm disorders, and central nervous system symptoms such as lethargy, dyskinesia, ataxia, numbness, etc. Liver function can be abnormal. Chronic effects: Long-term exposure can lead to neurasthenia syndrome, liver enlargement and abnormal liver function.

Environmental hazard

It is harmful to the environment and can cause pollution to water bodies.

Explosion hazard

This product is flammable, highly toxic, highly corrosive and irritating, and can cause burns to the human body.

Stability and reactivity

stability

Stable

polymerization hazard

no polymerization

decomposition products,

nitrogen oxides

Incompatible

Strong oxidants, strong acids, copper, zinc, etc.

Conditions to avoid contact

first-aid

skin contact

Immediately remove contaminated clothing and rinse with plenty of running water for at least 15 minutes. Seek medical attention.

eye contact

Immediately lift the eyelids and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention.

Inhalation

Quickly leave the scene to the fresh air. Keep the airway open. If breathing is difficult, give oxygen. If breathing stops, perform artificial respiration immediately. Seek medical attention.

Ingestion

Drink plenty of warm water and induce vomiting. Wash the stomach. Seek medical attention.

Fire-fighting measures

Dangerous characteristics

In case of fire, high heat is flammable. Has strong reducibility. Strong reaction with oxidants, causing burning or explosion. In case of oxidized mercury, sodium metal, stannous chloride, 2,4-dinitrochlorobenzene, violent reaction.

Hazardous combustion products

Nitric oxide.

Fire fighting methods

In case of fire, firefighters must operate in a protective shelter. The liquid is escaping with water to dilute it into a non-combustible mixture, and the firefighters are protected by misty water. Extinguishing media: water spray, anti-solvent foam, carbon dioxide, dry powder.

Leakage emergency treatment

Emergency treatment

Quickly evacuate personnel from the contaminated area to a safe area, and conduct isolation to strictly restrict access. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and wear acid and alkali protective overalls. Do not touch the spill directly. Cut off the source of the leak as much as possible. Prevent entry into restricted spaces such as sewers and flood drains. Small amount of leakage: Adsorption or absorption with sand or other non-combustible materials. It can also be rinsed with a large amount of water, diluted in water and placed in the wastewater system. A large number of leaks: building a dike or digging a pit. Transfer to a tank truck or special collector with a pump, recycle or transport to a waste disposal site for disposal.

Handling and storage

Operational precautions

Closed operation, local exhaust. Operators must be specially trained to strictly follow the operating procedures. Operators are advised to wear self-priming filter gas masks (full face masks), rubber-resistant acid-base suits and rubber gloves. Keep away from fire, heat, and smoking in the workplace. Use explosion-proof ventilation systems and equipment. Prevent vapors from leaking into the workplace air. Avoid contact with oxidants, acids, and metal powders. Lightly load and unload during handling to prevent damage to packaging and containers. Equipped with the corresponding variety and quantity of fire-fighting equipment and leakage emergency treatment equipment. Empty containers may be harmful residues.

Storage considerations

Store in a cool, ventilated warehouse. Keep away from fire and heat. The temperature of the reservoir does not exceed 30 ° C, and the relative humidity does not exceed 80%. Keep the container sealed. It should be stored separately from oxidants, acids, metal powders, and food chemicals. Avoid mixing. Equipped with the appropriate variety and quantity of fire equipment. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials. The “five pairs” management system for extremely toxic substances should be strictly implemented.

Contact control / personal protection

Exposure limit

MAC (mg/m3): 0.13 (skin)

Monitoring method

Dimethylaminobenzaldehyde spectrophotometry; solvent desorption-gas chromatography

engineering control

Closed operation, local exhaust. Safety showers and eyewash equipment are provided.

Respiratory protection

Self-priming filter respirators (full face masks) must be worn when exposed to vapors. Self-contained breathing apparatus is recommended for emergency rescue or evacuation.

Eye protection

Protection has been provided in respiratory protection.

Body protection

Wear rubber acid and alkali resistant clothing.

Hand protection

Wear rubber gloves.

Other protection

Smoking is strictly prohibited at the job site. After work, take a shower. Store clothes contaminated with poisons separately and wash them for later use. Pay attention to personal hygiene.

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