[Chemical Knowledge]：Specification for storage and transport of sodium perborate

Sodium perborate (chemical formula: NaBH4O6, also known as sodium hydrogen perborate) is an inorganic salt that is commonly used as an oxidant and bleach in the production of chemicals. Due to its potential hazards, strict compliance with relevant safety regulations is required during storage and transportation. This article will elaborate on the physical and chemical properties of sodium perborate, risk overview, first aid measures, fire protection measures, leakage emergency treatment, handling and storage, contact control/personal protection, physical and chemical characteristics, stability and reactivity, toxicological data, ecological data, waste disposal, transportation information and regulatory information.

1. physicochemical properties

sodium perborate is a white crystalline powder, with strong oxidation. It is readily soluble in water and releases reactive oxygen species in solution. In addition, it also has good thermal stability.

2. Hazard Overview

Sodium perborate is harmful to humans and may cause irritation to the eyes and skin. Ingestion or inhalation of sodium perborate may cause inflammation of the respiratory tract, digestive tract and skin. In addition, sodium perborate may cause combustion or explosion when exposed to an open flame, high heat, or contact with a reducing agent.

3. first aid

If skin comes into contact with sodium perborate, immediately remove contaminated clothing and rinse with plenty of flowing water for at least 15 minutes. If the eyes come into contact with sodium perborate, immediately lift the eyelids and flush with running water or saline for at least 15 minutes before seeking medical attention. If you ingest sodium perborate by mistake, rinse your mouth immediately, drink plenty of warm water, and seek medical attention immediately after vomiting.

4. fire protection measures

sodium perborate may produce harmful toxic gases when burned. Therefore, when putting out a fire, firefighters should wear self-contained breathing apparatus and full-body fire protection clothing to put out the fire in the upper wind direction. The extinguishing agent shall be dry sand or carbon dioxide.

5. leakage emergency treatment

in case of sodium perborate leakage, personnel in the leakage contaminated area shall be quickly evacuated to the safety zone, isolated and strictly restricted. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and protective clothing. Do not touch the leak directly. Cut off leakage sources as much as possible to prevent them from flowing into restricted spaces such as sewers and flood discharge ditches. Small amount of leakage: adsorption or absorption with sand or other non-combustible materials. Large leakage: build embankment or dig pit for storage; transfer to tank truck or special collector by pump, recycle or transport to waste treatment site for disposal.

6. handling Disposal and storage

handling of sodium perborate shall be sealed to provide adequate local ventilation. It is recommended that operators receive special training and strictly follow the operating procedures. Operators are advised to wear self-priming filter dust masks, chemical safety goggles, anti-poison penetration overalls and rubber gloves. Keep away from fire and heat sources. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Avoid creating dust. Avoid contact with reducing agents. Handle lightly to prevent damage to packaging and containers. Equipped with corresponding types and quantities of fire fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances.
When storing sodium perborate
, it should be stored in a cool and ventilated warehouse. Keep away from fire and heat source. The warehouse temperature should not exceed 30 ℃. Should be stored separately from the reducing agent, do not mix storage. The storage area shall be provided with suitable materials to contain spills.

7. contact control/personal protection

engineering control: closed operation, local exhaust. Safety shower and eyewash equipment provided.
Respiratory system protection: when the concentration in the air exceeds the standard, you must wear a self-priming filter dust mask. Emergency rescue or evacuation, should wear air respirator.
eye protection: wear chemical safety goggles.
body protection: wear anti-poison penetration overalls.
hand protection: wear rubber gloves.
Other protection: Smoking, eating and drinking are prohibited at the work site. After work, shower and change clothes. Maintain good hygiene habits. Pre-employment and regular medical examinations are carried out.

8. physical and chemical properties

appearance and properties: white crystalline powder, no smell. pH:9.5-10.5(1% aqueous solution). Melting point (°C):105 (decomposition). Boiling point (℃): No data available. Relative density (water = 1):1.65. Relative vapor density (air = 1): no data available. Saturated vapor pressure (kPa): No data available. Heat of combustion (kJ/mol): not meaningful. Critical temperature (℃): meaningless. Critical pressure (MPa): meaningless. Diagrams of octanol/water partition coefficients: No data available. Flash point (℃): meaningless. Ignition temperature (℃): meaningless. Upper explosion limit%(V/V): meaningless. Lower explosive limit%(V/V): meaningless. Solubility: Soluble in water, insoluble in ethanol. Main use: used as oxidant, bleach. Other physical and chemical properties: loss of crystal water at 150 ℃.

9. stability and reactive

stability: stable polymerization hazard: non-polymerization to avoid contact conditions: friction and vibration contraindications: strong reducing agent, water, acids, alkali metal, amine decomposition products: nitrogen oxide gas health hazard: this product dust has irritating effect on eyes and respiratory tract environmental hazard: harmful to environment explosion hazard: this product aids combustion, has irritating fire hazard: this product is flammable, has irritating hazard characteristics: inorganic oxidants. with