Military Submarine Grade Soda Lime

Military Submarine Grade Soda Lime

Military Submarine Application of Akrosorb Soda Lime

Akrosorb Soda Lime finds application in Military and Commercial Rebreather sets to take away exhaled CO2.

Submarines have a complex air filtration system, essential for maintaining the atmosphere within the submarine suitable for breathing whilst submerged. The carbon dioxide scrubbing system removes the CO2, generated via respiration, by constant circulation through a scrubber system filled with Akrosorb Soda Lime. For many years, navies worldwide have depended on Akrosorb Soda Lime for the control of exhaled CO2 on board of their submarines. By balancing the chemical and physical properties of the Akrosorb Soda Lime granules, we have been able to optimize the neutralization process confirming to national and international standards.


Akron Healthcare manufactures Akrosorb Soda Lime as per NATO STANAG 1411 ADivP-03. Akron Healthcare has the necessary licenses including Schedule-M, GMP (Good Manufacturing Practices), ISO 9001:2008 and approvals that include I.P. (Indian Pharmacopoeia), B.P. (British Pharmacopoeia) & U.S.P. (United States Pharmacopoeia) to manufacture Soda Lime. Akron Healthcare also manufactures Soda Lime as per IS 5321:1969.

Akrosorb Soda Lime is the preferred brand amongst various navies across the world.

Akron Healthcare supplies Soda Lime for Submarines in Canisters that are compatible with the Oxygen/Breathing Chambers in Submarines.


  • Akrosorb Soda Lime is used in navies, for use in submarines and by divers.
  • Akrosorb Soda Lime absorbs carbon dioxide in helium-oxygen breathing systems, hyperbaric chambers and scuba apparatus.
  • In diving applications, Akrosorb Soda Lime is used to maintain Carbon Dioxide below harmful levels in both closed-circuit rebreathers and in saturation dive systems for commercial deep sea diving.
  • Akrosorb Soda Lime is a chemical technology for removal of Carbon Dioxide from manned enclosed atmospheres, such as submarine, and closed circuit breathing apparatus, such as rebreathers.
  • The major applications of Akrosorb Soda Lime are in breathable gas applications where carbon dioxide levels need to be controlled, for example in commercial and leisure diving rebreathers, or in submarines. In these applications, the breathable air is recirculated for re-use and therefore any exhaled carbon dioxide needs to be removed in order to prevent a build-up of carbon dioxide to toxic levels.
  • Akrosorb Soda Lime finds application in naval and tourist vessels, submarines etc.

Color Indicator:

Akrosorb Soda Lime is available in 2 types:

With Indicator:

As the Soda Lime becomes less effective during use, the granules change their color.

Color Indicator is available in 2 types:

Pink to White Indicator on absorption of CO2.

White to violet Indicator on absorption of CO2.

This color change should not be used to determine when to replace your absorbent, but simply as an indication of recent use.

Without Indicator:

Akron Healthcare also manufactures Soda Lime (without indicator) i.e. white color granules that do not change in color on CO2 Absorption.

Particle Shape and Size:


Akrosorb Soda Lime granules are available in various shapes that include irregular pebble shaped granules, uniform shaped granules, cylindrical shaped granules, d-shaped granules and pellet shaped granules depending on the intended application and customer specification.

The water content can also be varied depending on the application.

The point to be ensured is that the shape of the granules should maximize CO2 absorption and minimize dust formation.


Akrosorb Soda Lime is manufactured in different granule size range to suit various applications and user’s specific requirements that include:

  • 1.4-2.0 mm
  • 2.0-2.8 mm
  • 2.0 – 4.0 mm
  • 2.0-8.0 mm
  • 2.5-5.0 mm
  • 2.8-4.75 mm
  • 2.8-5.5 mm
  • 4.0-8.0 mm

We can modify the granule size depending on the intended application and/or as per customer specification.

Akrosorb Soda Lime is available in 4-8 mesh size and 8-12 mesh size as well.


We follow strict control, and batch acceptance criteria.  Our Soda Lime test methods also conform to Pharmacopoeia Standards like I.P., B.P., U.S.P. or IS 5321:1969.  Akrosorb Soda Lime is manufactured under rigorous Statistical Process operations and is governed by Standard Operating Procedures, which form the basis of our quality system.

Quality Management Certificates Available:


GMP (Good Manufacturing Practices)

ISO 9001:2008;

ISO 14001:2004;

OHSAS 18001:2007;

ISO 13485:2012;

Drug Approvals Available:

I.P. (Indian Pharmacopoeia)

B.P. (British Pharmacopoeia)

U.S.P. (United States Pharmacopoeia)

Complied Standards:

IS 5321:1969;

I.P. Indian Pharmacopoeia;

B.P. British Pharmacopoeia;

U.S.P. United States Pharmacopoeia;

NATO  STANAG 1411 ADivP-03.


In-house as well as Govt. Approved Independent Laboratory COA of every batch available.