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Calcium Oxide 1

Name: Calcium Oxide 1
Brand: DIDEU
SKU: pr2508051442
Price: 38 USD
Availability: InStock

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CAS No.:

1305-78-8

Grade:

Industrial Grade

Content:

99%

Port:

shanghai

Brand:

DIDEU

Packaging:

25KG/BAG

Price valid (until):

2025-09-05

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Shaanxi Dideu Medichem Co. Ltd

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst

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Product Description
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Inquiry History

Description

Product Detail

Calcium oxide is an inorganic compound with the chemical formula CaO and is commonly known as quicklime. The physical property is a white powder on the surface. Impure ones are grayish white, and when containing impurities, they appear light yellow or gray. It has hygroscopicity. Calcium oxide is an alkaline oxide and is sensitive to moisture. It readily absorbs carbon dioxide and moisture from the air. It reacts with water to form calcium hydroxide (Ca (OH) 2) and generates a large amount of heat, and is corrosive.

Calcium oxide is also an inorganic dehydrating agent. It reacts with water to produce calcium hydroxide and can also absorb carbon dioxide. Calcium oxide powder can be added to some special sealant, water-curable adhesive and other systems. Calcium oxide can be used as an analytical reagent, as a carbon dioxide absorbent in gas analysis, as a spectral analysis reagent, and as a high-purity reagent in the epitaxial and diffusion processes of semiconductor production, for drying ammonia gas in laboratories and dehydrating alcohols, etc. Quicklime is generally obtained by calcining limestone. Due to its excellent water absorption performance, quicklime has long been used to make desiccants. The main component of quicklime desiccants is calcium oxide, and the drying principle is that calcium oxide reacts with water absorption to form calcium hydroxide. Because of its low cost and high cost performance, it is widely used in various industries such as food and clothing. For the identification test, take 1g of the sample, shake it together with 20ml of water, and add acetic acid solution (TS-1) until the sample dissolves. The calcium test (IT-10) of this solution was positive. For content analysis, take approximately 1g of the sample, burn it to a constant weight (precise weighing), and dissolve it in 20ml of dilute hydrochloric acid solution (TS-117). After cooling, dilute with water to 500.0ml and mix well. Take 50.0ml of this solution into an appropriate container and add 50ml of water. Under stirring (preferably with a magnetic stirrer), add approximately 30ml of 0.05mol/L disodium EDTA through a 50ml burette, then add 15ml of sodium hydroxide solution (TS-224) and 300mg of hydroxynaphthol blue indicator, and continue titrating until the blue endpoint. Each ml of 0.05mol/L EDTA is equivalent to 2.804mg of calcium oxide.

ECHEMI Editorial Reference

White or gray, odorless lumps or granular powder.

Basic Info

Product Name:

Calcium oxide

Other Name:

Calcium oxide (CaO);Calcium oxide;Calx;Calcium monoxide;Caloxol W 3;Calcia;Calxyl;Rhenosorb C;Rhenosorb F;Desical P;Caloxol CP 2;Burnt lime;Calcia (CaO);Airlock;Quicklime (CaO);CML 31;Bell CML(E);CML 21;CML 35;Vesta PP;QC-X;Bell CML(P);Caloxal CPA;CSQ;CML 35S;E 529;FCA 8A;F Raimu 1300D;F Raimu 900K;Nanotek CaO;Mikuronraimu;NanoActive CaO;NanoActive CaO Plus;Calciogreen;Caltrac;KSX;Rhenogran CaO 80;Bell CML 41;Chelan;Power-Ca;Moisutoppu 10;Borumikku;Vesta 20;NanoActive Calcium Oxide;Shell Lime HTO;Fishcal;CAC 20209A;Rhenofit F;Moisutoppu 20;Rhenofit C;Stomilex;Vesta QCX;CA 602;OM 1;OM 1 (pigment);Polycal OFT 15;DryPaste S 1;Hyper Expan M;Nekafin 2;Polycal O 5325;Polycal OS 325;Caloxol CP 2HU;CaO;CL 90Q90;CaO WFK Super 40;CaO 80;UPC-B 01;JYQ-S 02;F Raimu 1300K;Calcium oxide (CaO);TK 107;Rapidquell Quicklime CL 90Q;Vesta 18;WKF 40;HAL-G;Seisekkai J 1P;Kezadol PCI;HAL-J;12610-14-9;60873-85-0;104624-96-6;245321-52-2;2641773-61-5

CAS No.:

1305-78-8

Molecular Formula:

CaO

InChIKeys:

InChIKey=ODINCKMPIJJUCX-UHFFFAOYSA-N

Molecular Weight:

56.07740

Exact Mass:

55.95750

EC Number:

215-138-9

ICSC Number:

0409

UN Number:

1910

DSSTox ID:

DTXSID5029631

Color/Form:

Grey-white, cubic crystals|Colorless, cubic, white crystals|Crystals, white or grayish white lumps, or granular powder|Greyish-yellow, hydroscopic lumps

HScode:

2825909000

Categories:

Oxides and Peroxides

Characteristics

PSA:

17.07000

XLogP3:

-0.11880

Appearance:

Calcium oxide appears as an odorless, white or gray-white solid in the form of hard lumps. A strong irritant to skin, eyes and mucous membranes. Used in insecticides and fertilizers.

Density:

3.3-3.4 g/cm³

Melting Point:

2572 °C

Boiling Point:

2850 °C

Flash Point:

2850ºC

Refractive Index:

1.83

Water Solubility:

Reacts

Storage Conditions:

Store at RT.

Vapor Pressure:

0 mmHg (approx)

Flammability characteristics:

Noncombustible Solid, but will support combustion by liberation of oxygen.

Explosive limit:

No explosive propertiy

Odor:

Odorless

PH:

SATURATED SOLN IN WATER IS ABOUT 12.8

Experimental Properties:

Crumbles on exposure to moist air|Commercial grade is usually yellowish or brownish tint, due to iron|Readily absorbs CO2 and H2O from air, becoming air-slaked.|A powerful caustic to living tissue. The powdered oxide may react explosively with water.

Air and Water Reactions:

Crumbles on exposure to moist air. Reacts with water to form corrosive calcium hydroxide, with evolution of much heat. Temperatures as high as 800° C have been reached with addition of water (moisture in air or soil). The heat of this reaction has caused ignition of neighboring quantities of sulfur, gunpowder, wood, and straw [Mellor 3: 673 1946-47].

Reactive Group:

Bases, Strong

Reactivity Alerts:

Water-Reactive

Reactivity Profile:

A base and an oxidizing agent. Neutralizes acids with generation of heat. Nonflammable, but will support combustion by liberation of oxygen, especially in the presence of organic materials. Reacts very violently with liquid hydrofluoric acid [Mellor 2, Supp. 1:129 1956]. Reacts extremely violently with phosphorus pentaoxide when reaction is initiated by local heating [Mellor 8 Supp.3:406 1971].

Autoignition Temperature:

Not flammable (USCG, 1999)

Flammable Limits:

Noncombustible Solid, but will support combustion by liberation of oxygen.

Corrosivity:

Corrosive

See More Calcium oxide Properties 

Hazard Identification

Classification of the substance or mixture

Skin irritation, Category 2

Serious eye damage, Category 1

Specific target organ toxicity â single exposure, Category 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H315 Causes skin irritation H318 Causes serious eye damage H335 May cause respiratory irritation
Prevention	P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area.
Response	P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Separated from strong acids, organic chemicals, water and food and feedstuffs. Dry.Keep tightly closed and dry.

See More Calcium oxide Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst

Location:
https://www.dideu.com/en/

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
7

Total Annual Revenue:
Above $100 million

Total Employees:
Above 1000

Year of Establishment:
2016

Certifications:
ISO Certificate,REACH

Company Profile
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Inquiry History

45 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	Calcium Oxide	5000 KG	Jun 17, 2024
Czech	Calcium oxide	250 KG	Sep 24, 2025
Czech	Calcium oxide	250 KG	Mar 19, 2024
Malaysia	Calcium oxide	6 MT	Apr 7, 2026
Singapore	Calcium oxide	1000 MT	Mar 4, 2026
Malaysia	calcium oxide 99%	500 MT	Feb 3, 2026
Canada	Calcium Oxide	1 KG	Nov 21, 2025
Pakistan	Calcium Oxide	2.00 20' Fcl	Aug 23, 2025
United States	Calcium Oxide	8800	Aug 5, 2025
Germany	CALCIUM OXIDE	2000 TON	Aug 5, 2025
Burkina-faso	Calcium oxide	2000 TON	Apr 1, 2025
South Korea	CALCIUM OXIDE	60 MT	Mar 11, 2025
Uzbekistan	Calcium Oxide	40 TON	Mar 6, 2025
South Korea	Calcium Oxide	10 TON	Nov 29, 2024
Kampuchea (Cambodia )	Quick Lime	36 TON	Nov 19, 2024
Bangladesh	CaO	300 MT	Jul 15, 2024
Malaysia	Calcium oxide	5000 MT	Jun 24, 2024
Ghana	Calcium oxide	10000 KG	May 27, 2024
Vietnam	Calcium oxide	58 MT	Feb 21, 2024
Vietnam	Calcium Oxide	400.00 KG	Jan 10, 2024

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Calcium Oxide 1

Product Description

Seller Information