Calcium oxide, reagent grade

Name: Calcium oxide, reagent grade
Brand: Vaqora Chemicals
SKU: VQ-000043

About Calcium oxide, reagent grade

Listed under CAS 1305-78-8, Calcium oxide is an analytical reagent available from Vaqora Chemicals (Reagent grade). Formula CaO, molecular weight 56.08 g/mol. The IUPAC name is oxocalcium. Common synonyms include Lime and Quicklime.

The material typically appears as a white to off-white powder. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for water treatment and laboratory analysis. Buyers come mainly from academic and industrial research and water treatment.

Standard pack sizes are 500 g, 2.5 kg and 4 x 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Water treatment
Laboratory analysis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Calcium oxide, reagent grade
Catalogue No.	VQ-000043
CAS Number	1305-78-8
IUPAC name	oxocalcium
Molecular formula	CaO
Molecular weight	56.08 g/mol
Exact mass	55.9575
Grade	Reagent
HSN code	28259090
InChIKey	ODINCKMPIJJUCX-UHFFFAOYSA-N
SMILES	O=[Ca]
PubChem CID	14778

Physical properties
Physical form	Powder
Appearance	White to off-white powder
H-bond donors / acceptors	0 / 1
TPSA	17.1 Å²
Synonyms	Lime, Quicklime, Calxyl, Gebrannter kalk, Unslaked lime, Calcium monoxide, Calx usta, Chaux vive, Quick lime, Rhenosorb C, Rhenosorb F, Calcium oxide (CaO)

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation

Precautionary statements: P260, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P319, P321, P330, P332 + P317, P362 + P364, P363, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 1305-78-8

Extra Pure

Calcium oxide powder, 90%

CAS: 1305-78-8
Formula: CaO
MW: 56.08 g/mol

VQ-000038

Food Grade

Calcium oxide powder, food grade (FCC) 95.0%

CAS: 1305-78-8
Formula: CaO
MW: 56.08 g/mol

VQ-046971

Calcium oxide, 99.95%

CAS: 1305-78-8
Formula: CaO
MW: 56.08 g/mol

VQ-000039

Calcium oxide, 99.995%

CAS: 1305-78-8
Formula: CaO
MW: 56.08 g/mol

VQ-000040

Calcium oxide, 99.998%

CAS: 1305-78-8
Formula: CaO
MW: 56.08 g/mol

VQ-000041

AR

Calcium oxide, GR 98%+

CAS: 1305-78-8
Formula: CaO
MW: 56.08 g/mol

VQ-000042

Calcium oxide, nanopowder, APS 100-300 nm, 99.5%

CAS: 1305-78-8
Formula: CaO
MW: 56.08 g/mol

VQ-017447

Frequently asked questions

What is the CAS number of Calcium oxide, reagent grade?

The CAS Registry Number of Calcium oxide, reagent grade is 1305-78-8. It is also known as Lime, Quicklime, Calxyl.

What is the molecular formula and molecular weight of Calcium oxide, reagent grade?

Calcium oxide, reagent grade has the molecular formula CaO and a molecular weight of 56.08 g/mol. Its IUPAC name is oxocalcium.

Which grade and pack sizes of Calcium oxide, reagent grade can I order?

We supply Calcium oxide, reagent grade in Reagent grade, in 500 g, 2.5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Calcium oxide, reagent grade?

Yes. Every lot of Calcium oxide, reagent grade is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Calcium oxide, reagent grade be shipped internationally?

Yes. Calcium oxide, reagent grade is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.