Substance profile
Sodium Perchlorate
Sodium Perchlorate is white orthorhombic crystals.
01 · Identification
What Sodium Perchlorate is
Sodium Perchlorate is white orthorhombic crystals. Its molecular formula is ClNaO4 and its molecular weight is 122.44 g/mol. It melts at 480 °C.
Under the GHS it carries the signal word Danger. It is classed as reactive agents - 1st degree.
02 · Identifiers
Sodium Perchlorate identifiers and molecular data
Sodium Perchlorate CAS number and EC number
Sodium Perchlorate molecular formula and molecular weight
03 · GHS classification
Sodium Perchlorate hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Sodium Perchlorate pictograms and signal word
Sodium Perchlorate hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Oxidising liquids or Oxidising solids | Category 1 | H271 | GHS03 |
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Sodium Perchlorate hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H271 | May cause fire or explosion; strong oxidiser. |
| H302 | Harmful if swallowed. |
This page lists only the codes assigned to Sodium Perchlorate. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Sodium Perchlorate
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Sodium Perchlorate issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Sodium Perchlorate precautionary statements
CLP Annex VI assigns 4 precautionary statements to Sodium Perchlorate. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Sodium Perchlorate name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | натриев перхлорат |
| Spanish español | Perclorato de sodio |
| Czech čeština | chloristan sodný |
| Danish dansk | natriumperchlorat |
| German Deutsch | Natriumperchlorat |
| Estonian eesti | naatriumperkloraat |
| Greek ελληνικά | υπερχλωρικό νάτριο |
| English English | sodium perchlorate |
| French français | perchlorate de sodium |
| Croatian hrvatski | natrijev perklorat |
| Italian italiano | perclorato di sodio |
| Latvian latviešu | nātrija perhlorāts |
| Lithuanian lietuvių | natrio perchloratas |
| Hungarian magyar | nátrium-perklorát |
| Maltese Malti | perklorat tas-sodju |
| Dutch Nederlands | natriumperchloraat |
| Polish polski | chloran(VII) sodu nadchloran sodu |
| Portuguese português | perclorato de sódio |
| Romanian română | perclorat de sodiu |
| Slovak slovenčina | chloristan sodný |
| Slovenian slovenščina | natrijev perklorat |
| Finnish suomi | natriumperkloraatti |
| Swedish svenska | natriumperklorat |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Sodium Perchlorate GHS label elements
Everything CLP Annex VI fixes for Sodium Perchlorate, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Sodium Perchlorate
- May cause fire or explosion; strong oxidiser.
- Harmful if swallowed.
- Do not eat, drink or smoke when using this product.
- IF SWALLOWED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Sodium Perchlorate in the GHS label constructor →
07 · Health hazards
Sodium Perchlorate health hazards and exposure limits
Sodium Perchlorate hazard summary
Concentrated solutions are probably not irritating to the skin; May induce methemoglobinemia after ingestion; [CHEMINFO] See PERCHLORATES.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Sodium Perchlorate properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
Sodium Perchlorate melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 480 °C (896 °F) | decomposes | HSDB |
Sodium Perchlorate density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 2.52 g/cm³ | HSDB | |
| 2 g/cm³ | ICSC | ||
| 2.02 g/cm³ | at 25 °C | DOE PAC |
Sodium Perchlorate solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | SOL IN COLD WATER; VERY SOL IN HOT WATER; SOL IN ALC | HSDB | |
| Solubility in water: very good | ICSC | ||
| In water, 209.6 g/100 g water at 25 °C. | at 25 °C | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Sodium Perchlorate storage and handling
Sodium Perchlorate safe storage
Separated from combustible substances and reducing agents. See Chemical Dangers. Well closed.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Sodium Perchlorate storage conditions
PROTECT AGAINST PHYSICAL DAMAGE. STORE IN PLACE OF NONCOMBUSTIBLE CONSTRUCTION. SEPARATE FROM ORGANIC, READILY OXIDIZABLE MATERIALS, SULFUR, CARBONACEOUS MATERIALS & COTTON. IMMEDIATELY REMOVE & CAREFULLY DISPOSE OF ANY SPILLED PERCHLORATE.
Source: Hazardous Substances Data Bank (HSDB)
Sodium Perchlorate incompatible materials
MIXTURE OF CALCIUM HYDRIDE OR STRONTIUM HYDRIDE &...PERCHLORATES EXPLODES VIOLENTLY WHEN RUBBED IN A MORTAR.
Source: Hazardous Substances Data Bank (HSDB)
Sodium Perchlorate reactivity
SODIUM PERCHLORATE is a strong oxidizing agent. Explosively decomposed at over 130 °C [Merck 11th ed. 1989]. A mixture with powdered magnesium is a friction-sensitive mixture [Safety Eng. Reports 1947]. A mixture with ammonium nitrate is used as an explosive [Mellor 2 Supp. 1:608 1956]. A 1:1 mixture of the perchlorate and hydrazine exploded upon grinding, [Chem. Abs., 1969, 70, 53524].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Sodium Perchlorate in the storage compatibility matrix →
10 · Transport
Sodium Perchlorate UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Sodium Perchlorate under UN 1502 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| SODIUM PERCHLORATE | 5.1 | O2 | II | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 5.1 is “Oxidizing substances” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Sodium perchlorate | 5.1 | II | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 5.1 is “Oxidizer” (49 CFR 173.2).
11 · Questions
Sodium Perchlorate — frequently asked questions
What is the CAS number of Sodium Perchlorate?
The CAS number of Sodium Perchlorate is 7601-89-0. Its EC number is 231-511-9.
What is the chemical formula of Sodium Perchlorate?
The molecular formula of Sodium Perchlorate is ClNaO4 and its molecular weight is 122.44 g/mol.
What does a Sodium Perchlorate label have to show?
Under CLP Annex VI the label for Sodium Perchlorate carries the pictograms Flame over circle and Exclamation mark and the signal word is Danger.
Is Sodium Perchlorate flammable?
CLP Annex VI assigns Sodium Perchlorate no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.
Is Sodium Perchlorate a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Sodium Perchlorate. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the melting point of Sodium Perchlorate?
The melting point reported for Sodium Perchlorate is 480 °C (896 °F), decomposes (HSDB).
How should Sodium Perchlorate be stored?
PROTECT AGAINST PHYSICAL DAMAGE. STORE IN PLACE OF NONCOMBUSTIBLE CONSTRUCTION. SEPARATE FROM ORGANIC, READILY OXIDIZABLE MATERIALS, SULFUR, CARBONACEOUS MATERIALS & COTTON. IMMEDIATELY REMOVE & CAREFULLY DISPOSE OF ANY SPILLED PERCHLORATE. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Sodium Perchlorate
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