Substance profile
Ammonium Chloride
Ammonium Chloride is colorless crystals or crystalline masses, or white, granular powder and is odorless.
01 · Identification
What Ammonium Chloride is
Ammonium Chloride is colorless crystals or crystalline masses, or white, granular powder and is odorless. Its molecular formula is ClH4N and its molecular weight is 53.49 g/mol. It boils at 520 °C, melts at 338 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Ammonium Chloride identifiers and molecular data
Ammonium Chloride CAS number and EC number
Ammonium Chloride molecular formula and molecular weight
03 · GHS classification
Ammonium Chloride hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Ammonium Chloride pictograms and signal word
Ammonium Chloride hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 2A | H319 | GHS07 |
Ammonium Chloride hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H302 | Harmful if swallowed. |
| H319 | Causes serious eye irritation. |
This page lists only the codes assigned to Ammonium Chloride. 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 Ammonium Chloride
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 Ammonium Chloride 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
Ammonium Chloride precautionary statements
CLP Annex VI assigns 10 precautionary statements to Ammonium Chloride. 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
Ammonium Chloride 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 | амониев хлорид |
| Spanish español | Cloruro de amonio |
| Czech čeština | chlorid amonný |
| Danish dansk | ammoniumchlorid |
| German Deutsch | Ammoniumchlorid |
| Estonian eesti | ammooniumkloriid |
| Greek ελληνικά | χλωριούχο αμμώνιο |
| English English | ammonium chloride |
| French français | chlorure d'ammonium |
| Croatian hrvatski | amonijev klorid |
| Italian italiano | ammonio cloruro |
| Latvian latviešu | amonija hlorīds |
| Lithuanian lietuvių | amonio chloridas |
| Hungarian magyar | ammónium-klorid |
| Maltese Malti | klorur tal-ammonju |
| Dutch Nederlands | ammoniumchloride |
| Polish polski | chlorek amonu |
| Portuguese português | cloreto de amónio |
| Romanian română | clorură de amoniu |
| Slovak slovenčina | chlorid amónny |
| Slovenian slovenščina | amonijev klorid |
| Finnish suomi | ammoniumkloridi |
| Swedish svenska | ammoniumklorid |
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
Ammonium Chloride GHS label elements
Everything CLP Annex VI fixes for Ammonium Chloride, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Ammonium Chloride
- Harmful if swallowed.
- Causes serious eye irritation.
- Wash … thoroughly after handling.
- Do not eat, drink or smoke when using this product.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF IN EYES:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Rinse mouth.
- If eye irritation persists:
- Remove contact lenses, if present and easy to do. Continue rinsing.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Ammonium Chloride in the GHS label constructor →
07 · Health hazards
Ammonium Chloride health hazards and exposure limits
Ammonium Chloride hazard summary
The substance decomposes on heating or on burning, producing toxic and irritating fumes (nitrogen oxides, ammonia and hydrogen chloride). A skin, eye, and respiratory tract irritant; [ICSC]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Ammonium Chloride occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | none See Appendix G | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 10 mg/m³ | Occupational Safety and Health Administration (OSHA) |
| REL | 20 mg/m³ | Occupational Safety and Health Administration (OSHA) |
| REL | TWA 10 mg/m3 ST 20 mg/m3 | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | N.D. | The National Institute for Occupational Safety and Health (NIOSH) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
Ammonium Chloride 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.
Ammonium Chloride boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 520 °C (968 °F) | ICSC | |
| 338 °C (640.4 °F) | sublimes, sublimes | HSDB | |
| Sublimes | sublimes | NIOSH |
Ammonium Chloride melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 338 °C (640.4 °F) | DOE PAC | |
| 350 °C (662 °F) | sublimes | NIOSH |
Ammonium Chloride density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.519 g/cm³ | HSDB | |
| 1.53 g/cm³ | NIOSH | ||
| 1.53 g/cm³ | at 20 °C | CAMEO |
Ammonium Chloride solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Almost insoluble in acetone, ether, ethyl acetate; soluble in alcohol | HSDB | |
| In water, 39.5 g/100 g water at 25 °C | at 25 °C | HSDB | |
| Strongly endothermic; sublimes without melting; somewhat hygroscopic; tendency to cake; hydrochloric acid and sodium chloride decrease solubility in water | sublimes | HSDB |
Ammonium Chloride vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0075 mmHg | at 91 °C | HSDB |
| 1 mmHg | at 160.56 °C | NIOSH |
Ammonium Chloride lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | Not flammable | HSDB | |
| Noncombustible Solid | NIOSH |
Ammonium Chloride critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 881.85 °C (1619.3 °F) | HSDB |
Ammonium Chloride corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | At fire temp corrodes metals | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Ammonium Chloride storage and handling
Ammonium Chloride safe storage
Separated from ammonium nitrate and potassium chlorate. Dry.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Ammonium Chloride storage conditions
Keep container tightly closed in a dry and well-ventilated place. Hygroscopic.
Source: Hazardous Substances Data Bank (HSDB)
Ammonium Chloride incompatible materials
Incompatible materials: Strong acids, strong bases, strong oxidizing agents.
Source: Hazardous Substances Data Bank (HSDB)
Ammonium Chloride reactivity
Acidic salts, such as AMMONIUM CHLORIDE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Ammonium Chloride in the storage compatibility matrix →
10 · Questions
Ammonium Chloride — frequently asked questions
What is the CAS number of Ammonium Chloride?
The CAS number of Ammonium Chloride is 12125-02-9. Its EC number is 235-186-4.
What is the chemical formula of Ammonium Chloride?
The molecular formula of Ammonium Chloride is ClH4N and its molecular weight is 53.49 g/mol.
What does a Ammonium Chloride label have to show?
Under CLP Annex VI the label for Ammonium Chloride carries the pictogram Exclamation mark and the signal word is Warning.
Is Ammonium Chloride flammable?
CLP Annex VI assigns Ammonium Chloride 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 Ammonium Chloride a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Ammonium Chloride. 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 exposure limit for Ammonium Chloride?
The US occupational exposure limit reported for Ammonium Chloride is none See Appendix G (The National Institute for Occupational Safety and Health (NIOSH)). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of Ammonium Chloride?
The boiling point reported for Ammonium Chloride is 520 °C (968 °F) (ICSC).
What is the melting point of Ammonium Chloride?
The melting point reported for Ammonium Chloride is 338 °C (640.4 °F) (DOE PAC).
How should Ammonium Chloride be stored?
Keep container tightly closed in a dry and well-ventilated place. Hygroscopic. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Ammonium Chloride
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