Calcium Hydroxide

CAS No.: 1305-62-0
Molecular Formula: Ca(OH)2
Molecular Weight: 74.0927

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product description

Calcium hydroxide is an inorganic base compound with the chemical formula Ca(OH)2 and a molecular weight of 74.09. It is a white powdered solid at room temperature, with a density of approximately 2.24g/cm3. It is sparingly soluble in water (1.73g/L at 20℃), insoluble in alcohol, soluble in glycerol and acids, and releases a large amount of heat when dissolved in acids. The pH of a saturated aqueous solution of calcium hydroxide is 12.4

Chemical Properties

Parameter	Value
Chinese Name	Calcium Hydroxide
English Name	Calcium Hydroxide
Alias	Slaked Lime, Calx
Chemical Formula	Ca(OH)₂
Molecular Weight	74.0927
CAS Registry Number	1305-62-0
EINECS Registry Number	215-137-3
Melting Point	580 ℃ (decomposes on heating)
Boiling Point	2850 ℃
Water Solubility	Slightly soluble (Solubility 1.65 g/L at 20℃)
Density	2.24 g/cm³ (25 ℃)
Appearance	White powdery solid
Applications	Aqueous solution can verify carbon dioxide; Construction materials
Safety Descriptions (S-phrases)	S26, S39
Hazard Symbol	R41
Risk Phrases	Corrosive substance; Irritating substance
UN Hazardous Goods Number	3262
Acidity/Alkalinity	Alkaline

Product Usage

Calcium hydroxide can be produced by reacting calcium oxide with water in a carbon dioxide-free environment, or by double decomposition reaction between calcium salts (such as calcium nitrate) and strong alkalis (such as potassium hydroxide) in a carbon dioxide-free environment, followed by filtration and drying. Calcium hydroxide can be used to manufacture cement, furnace linings, and as a binding material in the construction industry; as a flux in the metallurgical industry; in industrial manufacturing for sugar production, leather tanning, and glass manufacturing; in the food industry as an acidity regulator, and for soaking fruits and vegetables in lime water to maintain their crispness; and in the pharmaceutical industry to inhibit bacterial growth.

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Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
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FAQ

Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.

Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.

Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.

Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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