Hazard Overview

Health hazards: This product has strong corrosiveness. Dust irritates the eyes and respiratory tract, corrodes the nasal septum; Direct contact between skin and eyes can cause burns; Accidental ingestion can cause gastrointestinal burns, mucosal erosion, bleeding, and shock.

Environmental hazards: May cause pollution to water bodies.

Explosive hazard: This product is non flammable, highly corrosive and irritating, and can cause burns to the human body.

Emergency measures

Skin contact: Immediately remove contaminated clothing and rinse with plenty of flowing water for at least 15 minutes. Seek medical attention.

Eye contact: Immediately lift the eyelids and thoroughly rinse with plenty of flowing water or saline solution for at least 15 minutes. Seek medical attention.

Inhalation: Quickly leave the scene and move to a place with fresh air. Keep the respiratory tract unobstructed. If breathing is difficult, administer oxygen. If breathing stops, immediately perform artificial respiration. Seek medical attention.

Ingestion: Rinse mouth with water and drink milk or egg whites. Seek medical attention.

Fire protection measures

Hazardous characteristics: Neutralizes with acid and releases heat. This product will not burn and will release a large amount of heat when in contact with water and water vapor, forming a corrosive solution. Has strong corrosiveness.

Harmful combustion products: May produce harmful toxic smoke.

Fire extinguishing method: Use water and sand to extinguish the fire, but it is necessary to prevent objects from splashing when encountering water, which may cause burns.

Emergency response to leakage

Isolate the contaminated area and restrict access. It is recommended that emergency personnel wear dust masks (full face shields) and acid and alkali resistant work clothes. Do not come into direct contact with the leaked material. Minor leakage: Collect with a clean shovel in a dry, clean, covered container. You can also rinse with a large amount of water, dilute the washing water, and put it into the wastewater system. Massive leakage: Collect and recycle or transport to waste disposal sites for disposal.

Handling and Storage

Precautions for operation: Closed operation. Operators must undergo specialized training and strictly adhere to operating procedures. It is recommended that operators wear a hood type electric air supply filter dust respirator, rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Keep away from flammable and combustible materials. Avoid generating dust. Avoid contact with acids. Handle with care during transportation to prevent damage to packaging and containers. Equip with emergency response equipment for leaks. Empty containers may contain residual harmful substances. When diluting or preparing a solution, alkali should be added to water to avoid boiling and splashing.

Storage precautions: Store in a cool, dry, and well ventilated warehouse. Stay away from sources of fire and heat. The humidity inside the warehouse should ideally not exceed 85%. The packaging must be sealed to prevent moisture. It should be stored separately from flammable materials, acids, etc., and avoid mixing storage. The storage area should be equipped with suitable materials to contain leaked materials.

Contact control and individual protection

China MAC (mg/m3): Former Soviet Union MAC (mg/m3): 0.5 without established standards

TLVTN: No standard established TLVWN： ACGIH   2mg/m3

Engineering control: Closed operation. Provide safety shower and eye wash equipment.

Respiratory protection: When there is a possibility of exposure to dust, it is necessary to wear a hood type electric air supply filter dust respirator. If necessary, wear an air respirator.

Eye protection: Respiratory protection has been implemented. Body protection: Wear rubber acid and alkali resistant clothing. Hand protection: Wear rubber acid and alkali resistant gloves.

Other protections: Smoking, eating, and drinking are prohibited in the workplace, and hands should be washed before meals. After work, take a shower and change clothes. Pay attention to personal hygiene and cleanliness.

Physical and chemical properties

Main ingredients: Content: Industrial grade 1 ≥ 90.0%; Level 2 ≥ 88.0%. Appearance and characteristics: White crystals, easily deliquescent.

Melting point (℃): 360.4 Boiling point (℃): 1320 Relative density (water=1): 2.04 Relative vapor density (air=1): No data available

Saturated vapor pressure (kPa): 0.13 (719 ℃) Combustion heat (kJ/mol): meaningless Critical temperature (℃): meaningless Critical pressure (MPa): meaningless

Logarithmic value of octanol/water partition coefficient: no data available Flash point (℃): meaningless Ignition temperature (℃): meaningless Explosion upper limit% (V/V): meaningless

Lower explosive limit% (V/V): meaningless solubility: soluble in water and ethanol, slightly soluble in ether.

Main uses: Used as raw materials for chemical production, as well as for industries such as pharmaceuticals, dyes, and light industry.

Prohibited substances: strong acids, flammable or combustible materials, carbon dioxide, acid anhydrides, acyl chlorides. Prohibited conditions: humid air.

Toxicological data

LD50: 273 mg/kg (rat oral) LC50: No data available

Transportation information

Dangerous goods number: 82002 UN number: 1813 Packaging category: O52

Packaging method: Solid can be tightly sealed in 0.5mm thick steel drums, with a net weight of no more than 100 kilograms per drum; Plastic bags or double-layer kraft paper bags with full or medium opening steel drums on the outside; Screw mouth glass bottles, iron cap pressed mouth glass bottles, plastic bottles, or ordinary wooden boxes outside metal drums (cans); Threaded mouth glass bottles, plastic bottles, or tin plated steel drums (cans) are filled with bottom plate grid boxes, fiberboard boxes, or plywood boxes; Tin plated steel drum (can), metal drum (can), plastic bottle or metal hose outer corrugated cardboard box.

Transportation precautions: During railway transportation, steel drum packaging can be transported by open top cars. When shipping, the packaging should be intact and the loading should be secure. During transportation, it is necessary to ensure that the container does not leak, collapse, fall, or be damaged. It is strictly prohibited to mix and transport with flammable or combustible materials, acids, edible chemicals, etc. Transport vehicles should be equipped with leak emergency response equipment during transportation.