Hydrobromic acid in acetic acid

Recommended and restricted uses: mainly used in pharmaceutical, pesticide and other intermediate industries. In medicine, it is used to synthesize sedatives and anesthetics, such as hydrocortisone, and can be used in petroleum industry and synthetic dyes and spices.

Hazard overview:

GHS hazard category: according to the chemical classification, warning label and warning description specification series standards: the product belongs to metal corrosion, category 1;

Skin corrosion / irritation, category 1A;

Severe eye injury / eye irritation, category 1;

Specific target organ systemic toxicity, repeated exposure, category 2

Label elements:

Pictogram:

Warning words: danger

Hazard information: corrosive metal; Cause serious eye damage; Inhalation may cause allergic or asthmatic symptoms or dyspnea; Swallowing and entering the respiratory tract may cause death; Cause serious skin burns and eye damage; Harmful to aquatic organisms;

Precautions:

The production process is closed and fully ventilated, and safety shower and eye washing equipment are provided

Wear filter gas mask

Wear safety glasses

Wear anti-static work clothes

Wear latex gloves

Smoking is strictly prohibited at the work site and good hygiene habits should be developed

Keep away from heat sources, sparks, open flames and hot surfaces, and operate with tools that are not easy to corrode

Use explosion-proof electrical appliances, ventilation, lighting and other equipment

Avoid contact during pregnancy and lactation

Avoid breathing volatile gases

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 to keep the respiratory tract unobstructed. If breathing is difficult, give oxygen,

If breathing stops, perform artificial respiration immediately. Do not use mouth-to-mouth artificial respiration. Use unidirectional small respirator or other appropriate medical respirator for medical treatment.

Ingestion: rinse your mouth with water and drink milk or egg white. See a doctor.

Collect leakage

Safe storage:

Store in a cool and ventilated warehouse, away from fire and heat source, with the warehouse temperature not exceeding 30 ℃ and the relative humidity not exceeding 85%; Keep the container sealed and store it separately from inflammables, alkalis and active metal powder. Do not store it together. The storage area shall be equipped with leakage emergency treatment equipment and appropriate receiving materials

Specially assigned person for safekeeping

Waste disposal:

After neutralization and dilution, it enters the sewage system for subsequent treatment.

Physical and chemical hazards: strong corrosivity; Immediately burn in case of H foaming agent; In case of cyanide, it can produce highly toxic hydrogen cyanide gas. In case of alkali metal, it can react violently and corrode most metals to form extremely flammable hydrogen.

Health hazard: the minimum toxic concentration inhaled by people is 5ppm. Liquid hydrogen bromide can cause irritation or burns to skin and mucous membrane; Long term low concentration exposure can cause respiratory tract irritation and digestive dysfunction.

Environmental hazards: no data

Composition / composition information

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 are particularly dangerous: No, most metals are highly corrosive. It can react with ordinary metals and release hydrogen to form an explosive mixture with air. In case of H foaming agent, it will burn immediately. In case of cyanide, it can produce highly toxic hydrogen cyanide gas.

Fire extinguishing method and extinguishing agent: neutralize with alkaline substances such as sodium bicarbonate, sodium carbonate, hydrated lime, etc. Small fires can be smothered with dry sand.

Precautions and measures for fire fighting: Firefighters must wear oxygen respirators and full body protective clothing.

Emergency treatment of leakage:

Protective measures, protective equipment and emergency disposal procedures for operators:

Quickly evacuate the personnel in the leakage contaminated area to the safe area, isolate them and strictly restrict their access. It is recommended that emergency treatment personnel wear self-contained positive pressure respirator and acid-base proof work clothes. Do not touch the leakage directly. Cut off the source of leakage as much as possible.

Storage and removal methods of leaked chemicals and disposal materials used

Small leakage: mix with sand, dry lime or soda ash. It can also be washed with a large amount of water and diluted into the wastewater system. Massive leakage: build a dike or dig a pit for reception. Transfer to tank car or special collector by pump, recycle or transport to waste treatment site for disposal.

Handling and storage:

Precautions for operation: close operation and pay attention to ventilation. The operation shall be mechanized and automatic as far as possible. Operators must receive special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter gas masks (full face masks), rubber acid and alkali resistant clothes and rubber acid and alkali resistant gloves. Keep away from inflammables and combustibles. Prevent steam from leaking into the air of the workplace. Avoid contact with alkali and active metal powder. Handle with care to prevent damage to packaging and containers. Equipped with leakage emergency treatment equipment. Empty containers may leave harmful substances.

Storage precautions: store in a cool and ventilated warehouse. Keep away from kindling and heat sources. The storage temperature shall not exceed 30 ℃, and the relative humidity shall not exceed 85%. Keep the container sealed. It shall be stored separately from inflammables, alkalis, active metal powders, etc., and mixed storage shall not be allowed. The storage area shall be equipped with leakage emergency treatment equipment and appropriate receiving materials.

Personal protection for controlled exposure:

Occupational exposure limit: MAC (mg / M) ³） No standard is formulated; TWA（mg/m ³） There is no standard ， STEL (mg / M) ³） No standard is established

Biological limit: no data

Monitoring method: mercuric thiocyanate colorimetry

Engineering control: closed operation, pay attention to ventilation. Mechanization and automation as much as possible. Provide safety shower and eye wash

Equipment.

Respiratory protection: wear self-priming filter gas mask (full face mask) or air respirator when you may be exposed to its smoke. In case of emergency rescue or evacuation, it is recommended to wear oxygen respirator.

Eye protection: respiratory protection has been provided.

Physical protection: wear rubber acid and alkali resistant clothing.

Hand protection: wear rubber acid and alkali resistant gloves.

Other protection: smoking, eating and drinking are prohibited at the work site. Shower and change clothes after work. Store clothes contaminated by poisons separately and use them for standby after washing. Keep good hygiene habits.

Physical and chemical properties:

Appearance and properties: colorless or light yellow liquid, slightly smoky, with pungent sour taste.

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

Boiling point, initial boiling point and boiling range (℃): no data; density (g / L): 1385 (4 ℃) (33%)

Relative vapor density (air = 1): the relative density (water = 1) of the liquid that is difficult to volatilize is 1.49 (47%)

Heat of combustion (kJ / mol): not applicable; saturated vapor pressure (kPa): no data available)

Critical pressure (MPA): no data; critical temperature (℃): no data

Flash point (℃): incombustible matter 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: miscible with water

Stability and reactivity:

Stability: extremely unstable, easy to volatilize hydrogen bromide and acetic acid gas

Prohibited substances: alkali, ammonia, active metal powder, flammable or combustible substances

Conditions to avoid contact: high heat and strong light

Hazardous reaction: highly corrosive to most metals. It can react with ordinary metals and release hydrogen to form an explosive mixture with air. In case of H foaming agent, it will burn immediately. In case of cyanide, it can produce highly toxic hydrogen cyanide gas.

Hazardous decomposition products: meaningless

Waste disposal:

Waste disposal method:

Products: 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

Unclean packaging: it is recommended to contact the manufacturer and return the empty container to the manufacturer

Precautions for waste disposal: the disposal personnel shall wear protective clothing; Pay attention to environmental protection.

Transportation information:

United Nations dangerous goods number (UN): no information

United Nations Shipping Name: hydroacetic acid bromide solution

United Nations hazard classification: category 8.1 acidic corrosive products

Packing category: II

Package mark: corrosive

Packing method: ordinary wooden case or semi lattice wooden case outside glass bottle or plastic barrel (can), ordinary wooden case outside frosted glass bottle or threaded glass bottle, ordinary wooden case outside ampoule bottle, threaded glass bottle, iron cap crimped glass bottle, plastic bottle or ordinary wooden case outside metal barrel (can)

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 package shall be complete and the loading shall be stable at the time of shipment. During transportation, ensure that the container does not leak, collapse, fall or damage. It is strictly prohibited to mix with combustibles or combustibles, alkalis, active metal powder, edible chemicals, etc. During transportation, the transport vehicle shall be equipped with leakage emergency treatment equipment. During transportation, it shall be protected from sun exposure, rain and high temperature. During highway transportation, drive according to the specified route, and do not stay in residential areas and densely populated areas.