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12047

Sigma-Aldrich

Calcium oxide

puriss., meets analytical specification of FCC, powder (fine)

Synonym(s):

Lime, Quicklime

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About This Item

Linear Formula:
CaO
CAS Number:
1305-78-8
Molecular Weight:
56.08
EC Number:
215-138-9
MDL number:
MFCD00010911
UNSPSC Code:
12352303
PubChem Substance ID:
329749605
NACRES:
NA.21

grade

puriss.

Quality Level

400

form

powder (fine)

quality

meets analytical specification of FCC

reaction suitability

core: calcium

impurities

≤0.5% insoluble in HCl
≤2.5% Mg and alkali salts (SO4)

loss

≤3.5% loss on ignition

pH

12.6 (20 °C)

bp

2850 °C (lit.)

density

3.3 g/mL at 25 °C (lit.)

anion traces

fluoride (F-): ≤150 mg/kg

cation traces

As: ≤3 mg/kg
Pb: ≤2 mg/kg

storage temp.

−20°C

SMILES string

O=[Ca]

InChI

1S/Ca.O

InChI key

ODINCKMPIJJUCX-UHFFFAOYSA-N

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Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H315,H318,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

does not flash

Flash Point(C)

does not flash

Certificates of Analysis (COA)

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Preparation of biodiesel catalyzed by solid super base of calcium oxide and its refining process.
Huaping ZHU, et al.
Chinese Journal of Catalysis, 27(5), 391-396 (2006)
Calcium oxide as a solid base catalyst for transesterification of soybean oil and its application to biodiesel production.
Kouzu M, et al.
Fuel: The Science and Technology of Fuel and Energy, 87(12), 2798-2806 (2008)
Marco Faustini et al.
Nanoscale, 5(3), 984-990 (2012-12-19)
We report the simple preparation of ultra-thin self-assembled nanoperforated titanium calcium oxide films and their use as reactive nanomasks for selective dry etching of silicon. This novel reactive nanomask is composed of TiO(2) in which up to 50% of Ti
E Belon et al.
The Science of the total environment, 439, 87-95 (2012-10-16)
The inputs of ten trace elements (As, Cd, Cu, Cr, Hg, Mo, Ni, Pb, Se, Zn) to French agricultural soils have been assessed. The six main sources considered were: pesticides, mineral fertilizers, animal manure, liming materials, sludge and composts and
Mohammad Mahdi Najafpour et al.
Dalton transactions (Cambridge, England : 2003), 42(14), 5085-5091 (2013-02-12)
Inspired by Nature's catalyst, a nano-size layered manganese-calcium oxide showed a low overvoltage for water oxidation in acidic solutions, which is comparable to platinum.
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