Calcium oxide - ≥98%, used for Manufacturing of steel, aluminum, magnesium, and glass and calcium salts, building and construction materials, lubricants, laboratory reagentCalcium oxide has wide-ranging utility in industry. It is used in making porcelain,

CAS: 1305-78-8 Cat. No.: C141333 Formula: CaO Molecular Weight: 56.08 EC Number: 215-138-9
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
AKOS015903966 | Calcium Oxide Nanopowder | Calcium oxide, puriss., meets analytical specification of FCC, 96-100.5% (ex ignited substance), powder (fine) | Calcium oxide, SAJ special grade, >=98.0% | UN1910 | Caloxol CP2 | CML 31 | Tin(IV) selenide (SnSe2
Storage
Room temperature,Argon charged,Desiccated
Shipped In
Normal
★
Size
Germany (EU)
USA*
Price
Qty
500g
C141333-500g
1 In stock
3 In stock
€10.33
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged,Desiccated Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 325 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Calcium oxide (CaO) is an alkaline earth metal oxide that has many industrial applications. Calcium oxide receives great attention in catalysis because it is affordable, environmentally friendly, and characterized by a strong basic nature, abundantly available, low methanol solubility and non-toxic compound.

Calcium oxide is used:
As a catalyst during the transesterification of palm oil to produce biodiesel.
In the inactivation of Cryptosporidium spp. oocysts and Giardia spp. Cysts from WTS (water treatment sludge).
In combination with PAA (peracetic acid) to increases the biogas production potential of cow manure and maize straw.

Specifications

Synonyms
AKOS015903966 | Calcium Oxide Nanopowder | Calcium oxide, puriss., meets analytical specification of FCC, 96-100.5% (ex ignited substance), powder (fine) | Calcium oxide, SAJ special grade, >=98.0% | UN1910 | Caloxol CP2 | CML 31 | Tin(IV) selenide (SnSe2
Specifications & Purity
≥98%
Application
Manufacturing of steel, aluminum, magnesium, and glass and calcium salts, building and construction materials, lubricants, laboratory reagentCalcium oxide has wide-ranging utility in industry. It is used in making porcelain, cements, mortars and glass. It
Storage
Room temperature,Argon charged,Desiccated
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/528772495
Canonical Smiles
O=[Ca]
IUPAC Name
oxocalcium
InChIKey
ODINCKMPIJJUCX-UHFFFAOYSA-N
INCHI
1S/Ca.O
Isomeric SMILES
O=[Ca]
WGK Germany
1
RTECS
EW3100000
UN Number
1910
Packing Group
III
Molecular Weight
56.08
Reaxy-Rn
3902805
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3902805&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

<<<<<<< HEAD Download SDS → ======= Download SDS → >>>>>>> release248-p3

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassAlkaline earth metal organides
SubclassAlkaline earth metal oxides
Intermediate Tree Nodes Not available
Direct ParentAlkaline earth metal oxides
Alternative Parents Inorganic oxides  
Molecular FrameworkNot available
Substituents Alkaline earth metal oxide - Inorganic oxide
DescriptionThis compound belongs to the class of inorganic compounds known as alkaline earth metal oxides. These are inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an alkaline earth metal.
External Descriptors calcium oxides
3D Structure
Interactive Chemical Structure Model





Certificates (CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

46 results found

Lot NumberCertificate TypeDateItem
F2610345F2610345Certificate of AnalysisMay 29, 2026 C141333
F2610344F2610344Certificate of AnalysisMay 29, 2026 C141333
F2610343F2610343Certificate of AnalysisMay 29, 2026 C141333
B2624058B2624058Certificate of AnalysisJan 28, 2026 C141333
B2624059B2624059Certificate of AnalysisJan 28, 2026 C141333
B2624060B2624060Certificate of AnalysisJan 28, 2026 C141333
K2512236K2512236Certificate of AnalysisOct 31, 2025 C141333
K2512235K2512235Certificate of AnalysisOct 31, 2025 C141333
K2512220K2512220Certificate of AnalysisOct 31, 2025 C141333
F2530026F2530026Certificate of AnalysisJun 06, 2025 C141333
F2530074F2530074Certificate of AnalysisJun 06, 2025 C141333
F2530073F2530073Certificate of AnalysisJun 06, 2025 C141333
B2522041B2522041Certificate of AnalysisFeb 17, 2025 C141333
C2517024C2517024Certificate of AnalysisFeb 17, 2025 C141333
C2517025C2517025Certificate of AnalysisFeb 17, 2025 C141333
C2517026C2517026Certificate of AnalysisFeb 17, 2025 C141333
B2522071B2522071Certificate of AnalysisFeb 17, 2025 C141333
B2522075B2522075Certificate of AnalysisFeb 17, 2025 C141333
I2418275I2418275Certificate of AnalysisSep 02, 2024 C141333
I2418347I2418347Certificate of AnalysisSep 02, 2024 C141333
I2418348I2418348Certificate of AnalysisSep 02, 2024 C141333
F2427367F2427367Certificate of AnalysisJun 17, 2024 C141333
F2427368F2427368Certificate of AnalysisJun 17, 2024 C141333
F2427366F2427366Certificate of AnalysisJun 17, 2024 C141333
C2419240C2419240Certificate of AnalysisMar 11, 2024 C141333
C2419238C2419238Certificate of AnalysisMar 11, 2024 C141333
C2419237C2419237Certificate of AnalysisMar 11, 2024 C141333
C2419236C2419236Certificate of AnalysisMar 11, 2024 C141333
A2423110A2423110Certificate of AnalysisJan 15, 2024 C141333
A2423101A2423101Certificate of AnalysisJan 15, 2024 C141333
A2423113A2423113Certificate of AnalysisJan 15, 2024 C141333
J2318314J2318314Certificate of AnalysisOct 10, 2023 C141333
J2318315J2318315Certificate of AnalysisOct 10, 2023 C141333
J2318316J2318316Certificate of AnalysisOct 10, 2023 C141333
H2318236H2318236Certificate of AnalysisAug 11, 2023 C141333
H2318237H2318237Certificate of AnalysisAug 11, 2023 C141333
H2318238H2318238Certificate of AnalysisAug 11, 2023 C141333
I2301196I2301196Certificate of AnalysisAug 11, 2023 C141333
H2212053H2212053Certificate of AnalysisJul 27, 2022 C141333
H2212054H2212054Certificate of AnalysisJul 27, 2022 C141333
H2212052H2212052Certificate of AnalysisJul 27, 2022 C141333
H2212051H2212051Certificate of AnalysisJul 27, 2022 C141333
A2330479A2330479Certificate of AnalysisJul 27, 2022 C141333
C2324533C2324533Certificate of AnalysisJul 27, 2022 C141333
B2218044B2218044Certificate of AnalysisSep 02, 2021 C141333
B2218045B2218045Certificate of AnalysisSep 02, 2021 C141333
Chemical and Physical Properties
SensitivityMoisture sensitive,Air sensitive
Refractive Index1.838
Boil Point(°C)2850℃
Melt Point(°C)2572℃
Molecular Weight56.080 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass55.9575 Da
Monoisotopic Mass55.9575 Da
Topological Polar Surface Area17.100 Ų
Heavy Atom Count2
Formal Charge0
Complexity2.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
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Citations of This Product
Solution Calculators
Reviews

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