Sodium hydroxide flake

Many friends do not know that flake alkali and sodium hydroxide are actually the same substance. Flake alkali (sodium hydroxide) is white and transparent, and it exists in solid form. Alkali flakes (sodium hydroxide) plays a vital role in light textile industries such as papermaking and rayon, as well as chemical industries such as pesticides and rubber. Of course, alkali flakes (sodium hydroxide) are also indispensable in the petroleum industry, metallurgical industry and medical industry.

shape

The properties of flake alkali are white translucent flaky solid. According to the national standard (GB209-2006), industrial-grade flake alkali is allowed to have a slight color, which is the color of impurities in the flake alkali.

National Standards

Part of the national standard for flake alkali (GB209-2006) regarding solid sodium hydroxide (including flake, block, and granular):

Quality Standards of Alkali Flakes

99 Alkali Tablets (IS-IT-Ⅰ) Sodium hydroxide ≥ Sodium carbonate ≤ Sodium chloride ≤ Ferrous oxide ≤

Superior product 99.0 0.5 0.03 0.005

First-class product 98.5 0.8 0.05 0.008

Qualified products 98.0 1.0 0.08 0.01

96 Alkali Tablets (IS-DT-Ⅰ) Sodium hydroxide ≥ Sodium carbonate ≤ Sodium chloride ≤ Ferrous oxide ≤

Superior product 96.0 1.2 2.5 0.008

First-class product 96.0 1.3 2.7 0.01

Qualified products 95.0 1.6 3.0 0.02

Note IS: Solid Sodium Hydroxide

IT: Usually refers to sodium hydroxide produced by the ion exchange membrane process, but is not limited to this process.

DT: Usually refers to sodium hydroxide produced by the diaphragm process, but is not limited to this process.

Emergency measures

Flake alkali is widely used as a neutralizer in the water treatment industry, and in the chemical industry for the manufacture of various sodium salts, soap, papermaking, cotton fabrics, silk, viscose fibers, regeneration of rubber products, metal cleaning, electroplating, bleaching, etc. Flake alkali is highly corrosive and has special requirements for its safety protection.

Workers who operate alkali flakes are the group most vulnerable to the hazards of alkali flakes. These employees are required to wear protective clothing, gloves and goggles or masks before taking up their posts, and the company is required to provide safe showers and eyewash equipment. Flake alkali is easy to leak during the production process, and emergency treatment should be adopted for flake alkali leakage. Isolate the leakage contaminated area and restrict entry and exit. It is recommended that emergency response personnel wear dust masks and acid-proof and alkali-proof clothing. Do not touch broken containers and leaking materials before putting on appropriate protective clothing. Cut off the source of the leak if possible. Cover the spill with plastic sheeting to reduce dispersion. Do not allow water to enter the packaging container. Use a clean shovel to collect the leaked material, place it in a clean, dry container with a loose lid, and move the container away from the leak area.