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466271

Sigma-Aldrich

Calcium peroxide

75%, −200 mesh

Synonym(s):

Calcium dioxide

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About This Item

Empirical Formula (Hill Notation):
CaO2
CAS Number:
78403-22-2
Molecular Weight:
72.08
EC Number:
215-139-4
MDL number:
MFCD00015988
UNSPSC Code:
12352303
PubChem Substance ID:
24870335
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

100

Assay

75%

form

powder

reaction suitability

reagent type: oxidant

particle size

−200 mesh

mp

>365 °C

SMILES string

[Ca++].[O-][O-]

InChI

1S/Ca.O2/c;1-2/q+2;-2

InChI key

LHJQIRIGXXHNLA-UHFFFAOYSA-N

General description

Calcium peroxide (CP) is a peroxide compound that releases oxygen and hydrogen peroxide. It is a safe inorganic peroxy compound in a solid form of oxygen. It can be used in the remediation of contaminated sites. It has the ability to construct a permeable reactive barrier system by acting as oxygen releasing material (OSM).[1][2][3]

Application

CP can be used as an amendment that facilitates the supplying of oxygen for agriculture, horticulture and biotechnology applications.[3]

Other Notes

Remainder calcium hydroxide

Signal Word

Danger

Hazard Statements

H272,H315,H318,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX4003
MKCW0648
MKCT8805
MKCQ8725
MKCN9697

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Rijuta Ganesh Saratale et al.
Bioresource technology, 258, 26-32 (2018-03-09)
This study focuses on development of calcium peroxide (CaO2) pretreatment that removes major part of lignin but retaining most of sugar components of kenaf core powder (KCP) biomass. In chemical pretreatment, usually higher loss of biomass occurs which was less
Venu Shanmugavel et al.
Food chemistry, 311, 125964-125964 (2019-12-23)
Potassium bromate, is an oxidizing agent and one of the best and cheapest dough improvers in the baking industry. Due to its positive effects it plays a major role in the bread-making industry. Potassium bromate has significant effect on food
Seonhee Kim et al.
The Science of the total environment, 762, 143124-143124 (2020-11-01)
Arsenic (As) is uptaken more readily by rice over wheat and barley. The exposure of As to humans being in the rice-consuming regions is a serious issue. Thus, an effective practice to reduce the translocation of As from soil to
Tian-Jiao Zhou et al.
Journal of controlled release : official journal of the Controlled Release Society, 309, 82-93 (2019-07-26)
Hypoxia is a potent tumor microenvironmental (TME) factor promoting immunosuppression and metastatic progression. For current anticancer therapeutic strategies, the combination of hypoxia alleviation and photodynamic therapy (PDT) might be a useful approach to further improve anticancer efficacy. In this study
Oxygen release kinetics from solid phase oxygen in Arctic Alaska
Schmidtke T, et al.
Journal of Hazardous Materials, 64(2), 157-165 (1999)
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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