Skip to Content
Merck
CN

1.02109

Calcium oxide from marble

small lumps ~3-20 mm

Synonym(s):

Calcium oxide from marble, Lime, caustic, Quicklime

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
CaO
CAS Number:
Molecular Weight:
56.08
UNSPSC Code:
12352303
EC Index Number:
215-138-9
NACRES:
NB.21
MDL number:
Assay:
≥95.0% (complexometric)
Form:
solid
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


Quality Segment

assay

≥95.0% (complexometric)

form

solid

impurities

≤0.1% Substances insoluble in hydrochloric acid

pH

12.6 (20 °C in H2O, saturated solution)

bp

2850 °C/100 mbar

mp

2580 °C

density

3.37 g/cm3 at 20 °C

bulk density

800‑1200 kg/m3

anion traces

chloride (Cl-): ≤500 ppm, sulfate (SO42-): ≤5000 ppm

cation traces

heavy metals (as Pb): ≤50 ppm

storage temp.

no temp limit

SMILES string

[Ca]=O

InChI

1S/Ca.O

InChI key

ODINCKMPIJJUCX-UHFFFAOYSA-N

Analysis Note

Assay (complexometric): ≥ 95.0 %
Substances insoluble in hydrochloric acid: ≤ 0.1 %
Chloride (Cl): ≤ 500 ppm
Sulfate (SO₄): ≤ 5000 ppm
Heavy metals (as Pb): ≤ 50 ppm


pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library