5.0N Hydrogen chloride

Recommended and restricted uses: making dyes, spices, drugs, various chlorides and corrosion inhibitors.

Hazard overview:

GHS hazard category: according to the chemical classification, warning label and warning description specification series standards: the product belongs to pressurized gas - compressed gas; Metal corrosion, category 1; Skin corrosion / irritation, category 1A; Severe eye injury / eye irritation, category 1; Acute toxicity - inhalation, category 3; Respiratory or skin allergy - respiratory sensitization, category 1A; Hazard to water environment, category 1

Label elements:

Pictogram:

Warning words: danger

Hazard information: including gas under pressure, which can explode if heated; Corrosive metal; Cause serious skin burns and eye damage; Cause serious eye damage; Inhalation can cause poisoning; Inhalation may cause allergic or asthmatic symptoms or dyspnea; Very toxic to aquatic organisms.

Precautions:

Keep away from heat source and open fire

Store in a cool, ventilated and dry place

Avoid contact with alkali and active metal powder

Sealed packaging, do not be affected by moisture

Wear protective gloves, glasses and masks

Avoid contact during pregnancy and lactation

No eating, drinking or smoking is allowed in the workplace

Clean the contact parts of the body thoroughly after operation, and the contaminated work clothes shall not be taken out of the workplace

No discharge into the environment

Accident response:

Skin contact: take off contaminated clothes immediately and rinse with plenty of flowing water for at least 15 minutes. See a doctor.

Eye contact: lift the eyelids immediately and rinse thoroughly with a large amount of flowing water or normal saline for at least 15 minutes. See a doctor.

Inhalation: quickly leave the site to a place with fresh air and keep the respiratory tract unobstructed. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. See a doctor.

Safe storage:

Store in a cool, dry and well ventilated warehouse

The storage temperature shall not exceed 30 ℃, and the relative humidity shall not exceed 85%

Keep away from fire and heat source and prevent direct sunlight

It should be stored separately from halogen and alkali

There should be fire and explosion-proof technical measures.

Equipped with corresponding varieties and quantities of fire-fighting equipment

It is forbidden to use mechanical equipment and tools that are easy to produce sparks

The storage area shall be equipped with leakage emergency treatment equipment.

Waste disposal:

Dispose according to national and local regulations, neutralize and dilute and then discharge into the wastewater system, or contact the manufacturer to determine the disposal method

Physical and chemical hazard: anhydrous hydrogen chloride, non corrosive. However, it is highly corrosive in case of water and can react with some active metal powders to release hydrogen. In case of cyanide, it can release highly toxic hydrogen cyanide gas.

Health hazard: This product has strong irritating effect on eyes and respiratory mucosa. Acute poisoning: headache, dizziness, nausea, eye pain, cough, blood in sputum, hoarseness, dyspnea, chest tightness, chest pain, etc. Severe cases have pneumonia, pulmonary edema and atelectasis. Ulceration or opacity can be seen in the cornea. Direct skin contact can produce a large number of millet like red small papules and show flushing, pain and heat.

Chronic effects: long term exposure to high concentrations can cause chronic bronchitis, gastrointestinal dysfunction and dental etching.

Environmental hazard: it is harmful to the environment and can pollute the water body.

Composition / composition information

Substance

content

Hazardous components

Concentration

Hydrogen chloride

99.999%

First aid measures

Skin contact: take off contaminated clothes immediately and rinse with plenty of flowing water for at least 15 minutes. See a doctor.

Eye contact: lift the eyelids immediately and rinse thoroughly with a large amount of flowing water or normal saline for at least 15 minutes. See a doctor.

Inhalation: quickly leave the site to a place with fresh air. Keep the respiratory tract unobstructed. If breathing is difficult, give oxygen. If breathing stops, perform artificial respiration immediately. See a doctor.

Ingestion: not exposed through this route

Fire fighting measures:

Special hazard: anhydrous hydrogen chloride is non corrosive, but it is highly corrosive in case of water. It can react with some active metal powders to release hydrogen. In case of cyanide, it can produce highly toxic hydrogen cyanide gas.

Fire extinguishing method and extinguishing agent: This product is non combustible. However, in case of fire caused by contact with other articles, appropriate extinguishing agent can be selected,

Precautions and measures for fire fighting: Firefighters must wear full body protective clothing, close the valve of steel cylinder in the fire site, reduce the fire, and spray water to protect the personnel who close the valve. If the air source cannot be cut off immediately, it is not allowed to extinguish the burning gas, spray water to cool the container, and move the container from the fire site to an open place if possible.

Emergency treatment of leakage:

Quickly evacuate the personnel in the leakage contaminated area to the windward and isolate them immediately. In case of small leakage, isolate them for 150m and in case of large leakage, isolate them for 300m, and strictly restrict access. It is recommended that emergency treatment personnel wear self-contained positive pressure respirator and chemical protective clothing. Enter the site from the upwind. Cut off the source of leakage as much as possible. Reasonable ventilation to accelerate diffusion.

Environmental protection measures: prevent leakage from entering water body, sewer and confined space

Storage and removal methods of leaked chemicals and disposal materials used

Spray ammonia or other dilute lye for neutralization. Build embankments or dig pits to receive a large amount of wastewater. If possible, send the residual gas or leakage gas to the water washing tower or the fume hood connected to the tower by exhaust fan. The leaking container shall be properly handled and reused after repair and inspection.

Handling and storage:

Operators must receive special training and strictly abide by the operating procedures. It is recommended that operators wear filter gas masks (half masks), chemical safety glasses, chemical protective clothing and rubber gloves. Avoid smoke. Prevent gas leakage into the air of the workplace. Avoid contact with alkali and active metal powder. Pay particular attention to avoid contact with water. Load and unload gently during handling to prevent damage to steel cylinders and accessories. Equipped with leakage emergency treatment equipment.

Storage precautions:

Store in a cool, dry and well ventilated warehouse

The storage temperature shall not exceed 30 ℃, and the relative humidity shall not exceed 85%

Keep away from fire and heat source and prevent direct sunlight

It shall be stored separately from alkali and active metal powder

There should be fire and explosion-proof technical measures.

Equipped with corresponding varieties and quantities of fire-fighting equipment

It is forbidden to use mechanical equipment and tools that are easy to produce sparks

The storage area shall be equipped with leakage emergency treatment equipment.

Personal protection for controlled exposure:

Unlimited biological data

Monitoring method: mercuric thiocyanate colorimetry

Engineering control: strictly sealed to provide sufficient local exhaust and comprehensive ventilation.

Respiratory protection: when the concentration in the air exceeds the standard, wear filter gas mask (half mask). In case of emergency rescue or evacuation, it is recommended to wear air respirator.

Eye protection: wear chemical safety glasses when necessary.

Skin and body protection: wear chemical protective clothing.

Hand protection: wear rubber gloves.

Other protection: shower and change clothes after work. Keep good hygiene habits.

Physical and chemical properties: appearance and properties: colorless gas with pungent smell.

PH value: no data available; melting point / freezing point (℃): - 114.2

Boiling point, initial boiling point and boiling range (℃): - 85.0 density: 1190 g / L (- 85 ℃) (liquid)

Relative vapor density (air = 1): 1.27; relative density (water = 1): 1.19

Heat of combustion (kJ / mol): not applicable; saturated vapor pressure (kPa): 4225.66 (20 ℃)

Critical pressure (MPA): 8.26; critical temperature (℃): 51.4

Flash point (℃): meaningless octanol / water partition coefficient: no data

Decomposition temperature: not applicable; ignition temperature (℃): incombustible material

Upper explosive limit% (V / V): noncombustible substance; lower explosive limit% (V / V): noncombustible substance

Flammability: non combustible

Solubility: soluble in water

Stability and reactivity:

Prohibited substances: alkali and active metal powder

Conditions to avoid contact: high heat and moisture

Dangerous reaction: it can react with some active metal powder and release hydrogen. In case of cyanide, it can produce highly toxic hydrogen cyanide gas.

Hazardous decomposition products: meaningless

Toxicological information:

Skin irritation or corrosion: corrosive to the skin

Eye irritation or corrosion: burns to eyes

Respiratory or skin allergy: dyspnea, chest tightness, chest pain; Direct skin contact can produce a large number of millet like red small papules and show flushing, pain and heat

Germ cell mutagenicity: no data

Carcinogenicity: non-human carcinogen

Reproductive toxicity: no data

Specific target organ systemic toxicity: no data

Inhalation hazard: irritant to upper respiratory tract mucosa

Ecological information:

Persistence and degradability: no data available

Potential bioaccumulation: there is no cumulative effect on symptomatic treatment after separation

Transportation information:

United Nations dangerous goods number (UN): 1050

UN Shipping Name: anhydrous hydrogen chloride

United Nations hazard classification: class 2.2 toxic gas secondary hazard class 8 corrosive substances

Packing category: II

Package mark: toxic gas, corrosive substance

Packing method: steel cylinder

Marine pollutants (yes / no): Yes

Precautions for transportation: during railway transportation, the dangerous goods shall be loaded in strict accordance with the dangerous goods loading table in the dangerous goods transportation rules of the Ministry of railways. The safety helmet on the steel cylinder must be worn when the steel cylinder is used for transportation. The steel cylinder is generally placed horizontally, and the bottle mouth should be in the same direction without crossing; The height shall not exceed the protective fence of the vehicle, and shall be firmly clamped with triangular wood cushion to prevent rolling. It is strictly prohibited to mix with alkali, active metal powder, edible chemicals, etc. In summer, it shall be transported in the morning and evening to prevent sunlight exposure. During highway transportation, it is necessary to drive according to the specified route, and it is forbidden to stay in residential areas and densely populated areas. It is forbidden to slip away during railway transportation.