What is Sodium Percarbonate (SPC) CAS 15630-89-4?

Sodium percarbonate, abbreviated SPC, is a solid adduct of sodium carbonate and hydrogen peroxide, commonly written as 2Na2CO3.3H2O2. It is also called sodium carbonate peroxyhydrate, sodium carbonate peroxide or peroxy sodium carbonate, with EC number 239-707-6 and molecular weight about 314.02 g/mol.

What is active oxygen in Sodium Percarbonate, and why does it matter?

Active oxygen is the oxygen released when SPC dissolves and decomposes to sodium carbonate and hydrogen peroxide in water. It is the key performance value for bleaching and oxidation. Commercial grades commonly express it as about 13-14% active oxygen, equivalent to roughly 30% hydrogen peroxide on an available-oxygen basis, but the exact test method should be agreed.

What are the main industrial uses of Sodium Percarbonate?

SPC is used in heavy-duty powder detergents, household and industrial cleaning products, fabric bleaching, textile pretreatment, and controlled oxygen-bleach systems. It is also used as an oxidant or biocide in some water-treatment applications and in selected personal-care products such as tooth-whitening or effervescent preparations where a dry, free-flowing oxygen source is needed.

What is the difference between coated and uncoated Sodium Percarbonate?

Coated grades carry a protective surface treatment that improves moisture resistance and storage stability in detergent matrices, while uncoated grades tend to dissolve and release active oxygen more readily. The choice depends on formulation compatibility, storage time, granule-size distribution and bulk-density requirements rather than the CAS number, which is the same for both forms.

Which physical and chemical properties should be confirmed for Sodium Percarbonate?

For a specific lot, confirm the physical form, white free-flowing appearance, active-oxygen content, moisture, bulk density, particle-size distribution, iron or heavy-metal limits, and pH of the aqueous solution. Typical coated grades may have active oxygen around 13.0% minimum, moisture about 2.0% maximum, bulk density around 800-1050 g/L and pH around 10-11 in dilute solution.

How should Sodium Percarbonate be stored and handled?

Keep SPC in tightly closed, moisture-protective packaging in a cool, dry, well-ventilated area away from water, heat, acids, combustible materials and reducing agents. It is a solid oxidizer, so prevent dust accumulation, avoid incompatible storage, and use suitable dust control and personal protective equipment during handling.

Sodium Percarbonate (SPC) CAS 15630-89-4

Sodium Percarbonate, CAS 15630-89-4, for powder detergents, cleaning formulations and controlled oxygen-bleach systems. Before requesting a quotation, confirm active oxygen, coated or uncoated form, bulk density, granule size, moisture, stability, packaging and intended formulation, and request current TDS, COA and SDS.

CAS: 15630-89-4
Synonyms: Sodium percarbonate; Sodium carbonate peroxyhydrate; Sodium peroxycarbonate; SPC
Einecs: 239-707-6
Molecular Formula: 2Na₂CO₃·3H₂O₂
Grade: Confirm on the offered specification and lot COA: active oxygen, coated or uncoated form, bulk density, granule size, moisture, stability, packaging and intended formulation.
Package: Moisture-protected packaging; confirm configuration for physical form, quantity, transport route and destination

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Product Description

Sodium percarbonate (SPC), CAS 15630-89-4, is the 2:3 addition compound of sodium carbonate and hydrogen peroxide. It releases active oxygen in water and is used in powder detergents and controlled non-chlorine bleaching systems; suitability depends on the commercial form and specification.

Product name: Sodium Percarbonate (SPC)

CAS Number: 15630-89-4; EC Number: 239-707-6

Adduct formula: 2Na₂CO₃·3H₂O₂ (C₂H₆Na₄O₁₂).

Molar mass: 314.02 g/mol for the 2:3 adduct.

Appearance: commonly supplied as white granules; confirm coating, particle size and bulk density on the offered specification.

pH: depends on test concentration and method; confirm the reporting basis on the current specification.

Commercial selection: compare active oxygen, coated or uncoated form, stability, moisture, granule-size distribution and bulk density. Do not infer a fixed 99% grade or package from the chemical identity.

FAQ - Technical & Supply Chain

Q:
What is Sodium Percarbonate (SPC) CAS 15630-89-4?

A: Sodium percarbonate, abbreviated SPC, is a solid adduct of sodium carbonate and hydrogen peroxide, commonly written as 2Na2CO3.3H2O2. It is also called sodium carbonate peroxyhydrate, sodium carbonate peroxide or peroxy sodium carbonate, with EC number 239-707-6 and molecular weight about 314.02 g/mol.
Q:
What is active oxygen in Sodium Percarbonate, and why does it matter?

A: Active oxygen is the oxygen released when SPC dissolves and decomposes to sodium carbonate and hydrogen peroxide in water. It is the key performance value for bleaching and oxidation. Commercial grades commonly express it as about 13-14% active oxygen, equivalent to roughly 30% hydrogen peroxide on an available-oxygen basis, but the exact test method should be agreed.
Q:
What are the main industrial uses of Sodium Percarbonate?

A: SPC is used in heavy-duty powder detergents, household and industrial cleaning products, fabric bleaching, textile pretreatment, and controlled oxygen-bleach systems. It is also used as an oxidant or biocide in some water-treatment applications and in selected personal-care products such as tooth-whitening or effervescent preparations where a dry, free-flowing oxygen source is needed.
Q:
What is the difference between coated and uncoated Sodium Percarbonate?

A: Coated grades carry a protective surface treatment that improves moisture resistance and storage stability in detergent matrices, while uncoated grades tend to dissolve and release active oxygen more readily. The choice depends on formulation compatibility, storage time, granule-size distribution and bulk-density requirements rather than the CAS number, which is the same for both forms.
Q:
Which physical and chemical properties should be confirmed for Sodium Percarbonate?

A: For a specific lot, confirm the physical form, white free-flowing appearance, active-oxygen content, moisture, bulk density, particle-size distribution, iron or heavy-metal limits, and pH of the aqueous solution. Typical coated grades may have active oxygen around 13.0% minimum, moisture about 2.0% maximum, bulk density around 800-1050 g/L and pH around 10-11 in dilute solution.
Q:
How should Sodium Percarbonate be stored and handled?

A: Keep SPC in tightly closed, moisture-protective packaging in a cool, dry, well-ventilated area away from water, heat, acids, combustible materials and reducing agents. It is a solid oxidizer, so prevent dust accumulation, avoid incompatible storage, and use suitable dust control and personal protective equipment during handling.

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