Health and Safety - ANSAC

By: Ansac  06-Dec-2011
Keywords: Soda Ash

ANSAC is committed to ensuring the safety of people and the environment and consistently aims to maintain the highest standards of safety and quality in all that we do worldwide. We strive to ensure full compliance with local, national, international and industry requirements, regulations and certifications.


Soda ash is not classified as being flammable, explosive, or toxic and it is categorized as a GRAS (Generally Recognized As Safe) substance for use in foods, by the U.S. Food and Drug Administration (FDA).

Personnel Protection

Although relatively harmless, there are a number of precautions that should be taken by personnel working with soda ash:

  • Eye googles and respiratory masks
    Although classified as non-toxic the dust can be moderately irritating to the mucous membranes of the eyes, throat and nose.
  • Skin protection (Long sleeved shirts, pants and gloves)
    Soda ash is mildly alkaline and will dissolve in human perspiration. This could lead to mild skin irritation in individuals with sensitive skin, particularly in hot and humid conditions.
  • Safety belts and lifelines
    Soda ash piles can cake to give the appearance of a hard crust. This can yield and engulf a worker. Personnel entering bins or silos containing soda ash must wear safety belts properly roped to rescue facilities and be physically observed by someone not on the soda ash pile.

Handling Methods

Soda ash is friable, so it tends to break into small dusty particles when under pressure or by abrasion. Dust is commercially undesirable since particle dimension is critically important, particularly in glass manufacture. To limit dust formation, soda ash needs to be moved using handling equipment that minimize grinding during transportation. Ideal handling equipment include:

  • grabs
  • conveyor belts
  • front-end loaders
  • belt elevators
  • drag chains

Less desirable are pneumatic systems or screw conveyors.

Materials of Handling

Soda ash is not corrosive to steels, but it will readily attack iron and rust. Painted surfaces other than epoxy resins are undesirable. Refractory surfaces such as concrete and brick should be smooth and sound and designed so that handling equipment is unlikely to break off small pieces that can contaminate the soda ash.

Storage Characteristics

Soda ash is mildly hygroscopic. It will absorb atmospheric moisture to form an undesirable crust up to five centimeters thick. To prevent this soda ash should be stored in weather tight warehouses. Such warehouses should not be ventilated or subject to gross changes in the atmosphere.

Silos with a bottom cone of greater than 40 degrees are acceptable, as are flat warehouses.

Keywords: Soda Ash

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About Soda Ash - ANSAC

These have the same chemical properties and only differ in physical characteristics, such as bulk density and particle size and shape (which affect flow characteristics and angle of repose). The Federal Reserve Board incorporates monthly soda ash production data into monthly economic indicators used to monitor the condition of the U.S. economy.


Dense Soda Ash - ANSAC

Manufacturers of quality flat glass, glass containers and detergents rely on the purity of ANSAC dense soda ash in making the world-class products their customers demand. ANSAC dense soda ash is a premium quality product that combines a consistently high sodium carbonate content with very low impurity levels of chlorides and iron.


Medium Dense Soda Ash - ANSAC

It offers a competitive alternative to synthetic light soda ash by absorbing high levels of liquid while precluding the dusting and segregation problems often associated with lighter synthetic soda ash. Quality detergent manufacturers look to ANSAC medium dense soda ash as an attractive alternative to ANSAC dense soda ash or synthetic light soda ash.


Quality & ISO 9001 - ANSAC

The primary responsibility for guaranteeing compliance with product specifications lies with the producers, but periodic sampling is conducted by ANSAC as follows. When laboratory analysis is required ANSAC contracts the work out to independent labs or utilizes member company laboratories. All soda ash sold by ANSAC, and produced by our three U.S. suppliers, is manufactured in ISO 9001 certified plants.