CAS reference

Calcium oxide

氧化钙

Not classified as DG for sea transport (UN 1910 is for some specific applications). Reacts violently with water releasing heat. Ships in 25 to 50 kg bags, 1 t big bags, or bulk vessel. China is one of the largest producers; Yunnan, Hunan, Hebei have major capacity.

CAS 1305-78-8 ·CaO ·MW 56.077 g/mol ·HS 282510

Identifiers

Synonyms
Quicklime, Burnt lime, CaO
Formula
CaO
Molecular weight
56.077 g/mol
SMILES
O=[Ca]
InChIKey
ODINCKMPIJJUCX-UHFFFAOYSA-N
HS code (6-digit)
282510

Transport and hazard profile

Transport classification, UN number UN1910, IMDG Class .

GHS hazard statements, Danger. H-codes, H315, H318, H335. Refer to the substance SDS Section 2 for the full classification.

Regulatory profile across 5 jurisdictions

Verified against ECHA, US EPA TSCA Inventory, MEE China IECSC, NIER K-REACH, and AICIS AIIC. Last verification 2026-04-30. Confirm with the regulator portal before any shipping decision.

EU REACH
Listed
US TSCA
Listed
China IECSC
Listed
Korea K-REACH
Listed
Australia AICIS
Listed

Look up other substances at the REACH / TSCA cross-jurisdiction checker.

Common applications

  • · Steel production (slag former)
  • · Construction (mortar, cement)
  • · Sugar refining
  • · Wastewater treatment
  • · Soil stabilisation

Typical Chinese supplier geography

Major Chinese capacity sits in Yunnan, Hunan, Hebei. Coastal producers (Shandong, Jiangsu, Zhejiang) typically dominate export volume because of port access; inland producers (Inner Mongolia, Xinjiang, Shaanxi) compete on raw-material cost but add inland-rail or trucking cost to reach the coast.

Sourcing documentation chain

Every shipment of Calcium oxide from China should include a per-batch COA, a current SDS per GB/T 17519 on the China side and the destination jurisdiction's standard on the import side, a packing list, a bill of lading, and a certificate of origin plus an MSA China DG packing certificate. For Incoterms reference see FOB, CIF, and CFR.

Sourcing Calcium oxide?

Send us the spec.

Our Shanghai team handles the documentation chain for Calcium oxide exports out of China. Factory selection, COA verification, DG declaration if applicable, and the duty stack quantified before you commit a deposit.

Request a Quote

Read next

Where this substance shows up across Sourzi

Referenced in

11 pages across the Sourzi moat

This term shows up in 5 regulatory pages, 6 chemical parks. Sample backlinks per content type below.

Regulatory (5)

Plus 2 more regulatory pages.

Park (6)

Plus 3 more chemical parks.

Free download

Free PDF: the MSDS verification template Sourzi runs against the supplier sheet for every CAS number we book out of China.