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Soda lime CAS 8006-28-8 Soda lime granular Soda lime Sodium hydrox 

Payment Terms: T/T,L/C,WU 
Place of Origin: Sichuan, China (Mainland) 
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Product Detail

Model No.: CaHNaO2
Production Capacity: 5000 Ton/Year
Delivery Date: within 7 days
Molecular formula: CaHNaO2
Molecular weight: 96.07
sensibility: Air & Moisture Sensitive
Name: Soda lime
Means of Transport: Ocean,Land,Air
Packing: According to the request of...
Brand: MOSINTER
Form: pellets
Appearance: Pink cylindrical particle...
Sensibility: Air & Moisture Sensitive

Soda lime is a mixture of chemicals, used in granular form in closed breathing environments, such as general anaesthesia

Soda lime (8006-28-8)


ITEM

STANDARD

RESULT

Appearance

Pink cylindrical   particle mixtures

Conform

CO2   Absorption rate

>   25%

35.11%

CO2    Absorption

_

>   140 L

Moisture   absorption

< 7.5%

3.87

Moisture

10%—15%

11.25%

Grain hardness

>   80%

92%

Particle size

4 mesh screen overflow   < 1%

0.93%

Pass 40 mesh < 2%

0.19%


Chemical components

The main components of soda lime are

·                    Calcium hydroxide, Ca(OH)2 (about 75%)

·                    Water, H2O (about 20%)

·                    Sodium hydroxide, NaOH (about 3%)

·                    Potassium hydroxide, KOH (about 1%).


Undersea use

Exhaled gas must be passed through a "carbon dioxide scrubber" where the carbon dioxide is absorbed before the gas is made available to be breathed again. In rebreathers the scrubber is a part of the breathing loop. Color indicating dye was removed from US Navy fleet use in 1996 when it was suspected of releasing chemicals into the circuit. In larger environments, such as recompression chambers or submarines, a fan is used to maintain the flow of gas through the scrubbing canister.

Chemical reaction

The overall reaction is:

CO2 + Ca(OH)2 → CaCO3 + H2O + heat (in the presence of water)

The reaction can be considered as a strong-base-catalysed, water-facilitated reaction.

Mechanism:

1) CO2 → CO2 (aq) (CO2 dissolves in water - slow and rate-determining)

2) CO2 (aq) + NaOH → NaHCO3 (bicarbonate formation at high pH)

3) NaHCO3 + Ca(OH)2 → CaCO3 + H2O + NaOH (NaOH recycled to step 2) - hence a catalyst)

Each mole of CO2 (44 g) reacted produces one mole of water (18 g).

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Company Info

MOSINTER GROUP LIMITED [China (Mainland)]

Offline Showroom in USA

Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

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