Calcium Oxide

short description:

Quick lime generally contains overheated lime, overheated lime maintenance is slow, if the stone ash paste hardening again, it will cause expansion cracking due to aging expansion. In order to eliminate this harm of lime burning, the lime should also be “aged” for about 2 weeks after maintenance. The shape is white (or gray, brown, white), amorphous, absorbing water and carbon dioxide from the air. Calcium oxide reacts with water to form calcium hydroxide and gives off heat. Soluble in acidic water, insoluble in alcohol. Inorganic alkaline corrosive articles, national hazard code :95006. Lime reacts chemically with water and is immediately heated to temperatures above 100°C.

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Product Details

Specifications provided

White powder (content ≥ 95%/99%)

Massive (content ≥ 80%/85%)

(Scope of application reference ‘product usage’)

The bulk/granular/powdered physical and chemical properties of quicklime are the same .

After the lime is filtered out of the kiln, the best product is generally made into instant lime blocks.

The remaining low ash content of the sieve can be used as low lime block or low lime powder, the price will be lower than the good ash, and the specification can be selected according to the use scenario.

EVERBRIGHT® ‘ll also provide customized ：content/whiteness/particlesize/PHvalue/color/packagingstyle/ packaging specifications and other specific products that are more suitable for your use conditions , and provide free samples.

Product Parameter

CAS Rn

1305-78-8

EINECS Rn

215-138-9

FORMULA wt

56.077

Product Usage

Building material

Metallurgical flux, cement accelerator, phosphor flux.

Filler

Can be used as a filler, for example: used as a filler for epoxy adhesives, It can prepare agricultural machinery No. 1, No. 2 adhesive and underwater epoxy adhesive, and also used as a reaction agent for pre-reaction with 2402 resin.

Acid sewage treatment

Many industrial wastewater adding aluminum series agglutination agent (polyaluminum chloride, industrial aluminum sulfate, etc.) or iron series agglutination agent (polyferric chloride, polyferric sulfate) produced small and dispersed condensation clusters. Sedimentation tank is not easy to sink, adding calcium oxide can increase the specific gravity of flocculant and accelerate the sinking of flocculant.

Boiler deactivate protectant

The moisture absorption ability of lime is used to keep the metal surface of boiler water vapor system dry and prevent corrosion, which is suitable for long-term deactivation protection of low pressure, medium pressure and small capacity drum boilers.

Production of materials

Used as raw materials, can manufacture calcium carbide, soda ash, bleaching powder, etc., also used in leather, wastewater purification, calcium hydroxide and various calcium compounds; Calcium hydroxide can be prepared by reaction with water, reaction equation: CaO+ h2o =Ca(OH)2, belongs to the combination reaction.