Substance Information

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Substance Infocard


Inorganic ammonium salts

Help Substance identity

The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas.

Some substance identifiers may have been claimed confidential, or may not have been provided, and therefore not be displayed.

EC (European Community) Number

The EC Number is the numerical identifier for substances in the EC Inventory. The EC Inventory is a combination of three independent European lists of substances from the previous EU chemicals regulatory frameworks (EINECS, ELINCS and the NLP-list). More information about the EC Inventory can be found here.

If the substance was not covered by the EC Inventory, ECHA attributes a list number in the same format, starting with the numbers 6, 7, 8 or 9.

The EC or list number is the primary substance identifier used by ECHA.

CAS (Chemical Abstract Service) registry number

The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. More information about CAS and the CAS registry can be found here.

Molecular formula

The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. This information is only displayed if the substance is well–defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure.

Molecular structure

The molecular structure is based on structures generated from information available in ECHA’s databases. If generated, an InChI string will also be generated and made available for searching. This information is only displayed if the substance is well-defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure.

More help available here.

EC / List no.: -

CAS no.: -

Mol. formula:

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Help Hazard classification and labelling

The ‘Hazard classification and labelling’ section shows the hazards of a substance based on the standardised system of statements and pictograms established under the CLP (Classification Labelling and Packaging) Regulation. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH).

This section is based on three sources for information (harmonised classification and labelling (CLH), REACH registrations and CLP notifications). The source of the information is mentioned in the introductory sentence of the hazard statements. When information is available in all sources, the first two are displayed as a priority.

Please note:

The purpose of the information provided under this section is to highlight the substance hazardousness in a readable format. It does not represent a new labelling, classification or hazard statement, neither reflect other factors that affect the susceptibility of the effects described, such as duration of exposure or substance concentration (e.g. in case of consumer and professional uses). Other relevant information includes the following:

  • Substances may have impurities and additives that lead to different classifications. If at least one company has indicated that the substance classification is affected by impurities or additives, this will be indicated by an informative sentence. However, substance notifications in the InfoCard are aggregated independently of the impurities and additives.
  • Hazard statements were adapted to improve readability and may not correspond textually to the hazard statements codes description in the European Union Specific Hazard Statements (EUH) or the UN Global Harmonised System (GHS).

To see the full list of notified classifications and to get more information on impurities and additives relevant to classification please consult the C&L Inventory.

More information about Classification and Labelling is available in the Regulations section of ECHA website.

More help available here.

Harmonised classification and labelling (CLH)

Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. Harmonisation is based on the substance’s physical, toxicological and eco-toxicological hazard assessment.

The ‘Hazard classification’ and labelling section uses the signal word, pictogram(s) and hazard statements of the substance under the harmonised classification and labelling (CLH) as its primary source of information.

If the substance is covered by more than one CLH entry (e.g. disodium tetraborate EC no. 215–540–4, is covered by three harmonisations: 005–011–00–4; 005–011–01–1 and 005–011–02–9), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically generated for the InfoCard.

It is possible that a harmonisation is introduced through an amendment to the CLP Regulation. In that case, the ATP (Adaptation to Technical Progress) number is displayed.

More info on CLH can be found here.

Classification and labelling under REACH

If available, additional information on classification and labelling (C&L) is derived from REACH registration dossiers submitted by industry. This information has not been reviewed or verified by ECHA, and may change without prior notice. REACH registration dossiers have greater data requirements (such as supporting studies) than do notifications under CLP.

Notifications under the Classification Labelling and Packaging (CLP) Regulation

If no EU harmonised classification and labelling exists and the substance was not registered under REACH, information derived from classification and labelling (C&L) notifications to ECHA under CLP Regulation is displayed under this section. These notifications can be provided by manufacturers, importers and downstream users. ECHA maintains the C&L Inventory, but does not review or verify the accuracy of the information.

Note that for readability purposes, only the pictograms, signal words and hazard statements referred in more than 5% of the notifications under CLP are displayed.

There is no harmonised classification and there are no notified hazards by manufacturers, importers or downstream users for this substance.

Help Important to know

This section highlights four regulatory activities or outcomes under REACH – Registration, Evaluation, Authorisation and Restriction of Chemicals – Regulation (EC) No 1907/2006:

  • Community rolling action plan - indicates if the substance is or was included in the Community rolling action plan (CoRAP). The CoRAP list includes substances that could pose a risk to human health or the environment and whose (potentially hazardous) properties are to be evaluated by the Member States in the next three years. After evaluation, proposals may be made for further regulatory action regarding the substance.
  • Candidate List - indicates if the substance is included in the candidate list of substances of very high concern (SVHCs). The Candidate List includes substances that are subject to additional protocols and reporting obligations and which may eventually be included in the Authorisation List, further limiting their use.
  • Authorisation list (Annex XIV to REACH) - indicates if the substance is included in the Authorisation list. These substances cannot be placed on the market or used after a given date, unless an authorisation is granted for their specific use, or the use is exempted from authorisation.
  • Restriction list (Annex XVII to REACH) - indicates if the substance is included in the Restriction List. The Restriction List describes the conditions for the manufacture, placing on the market or use of certain substances, either on their own or in mixtures or articles.

Please note: The identification of relevant regulatory activities and outcomes is done automatically and without manual verification. Substances may be grouped together under a specific regulatory activity for more efficient risk management and legislative processing (e.g. restriction on "Lead and its compounds"). In these cases, Infocards may not identify all substances in the group.Therefore it does not represent official and legally–binding information. To confirm if a substance is covered by a specific regulatory action the official publication, e.g. the electronic edition of the Official Journal of the European Union should be consulted.

More help available here.

about INFOCARD - Last updated: 21/12/2021 InfoCard

The InfoCard summarises the non-confidential data of a substance held in the databases of the European Chemicals Agency (ECHA). InfoCards are generated automatically based on the data available at the time of generation.

The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter. The type of uses and classifications may vary between different submissions to ECHA and for a full understanding it is recommended to consult the source data. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. It is the responsibility of the substance manufacturers and importers to consult official publications, e.g. the electronic edition of the Official Journal of the European Union.

InfoCards are updated when new information is available. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data.

More help available here.

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Key datasets


Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

REACH - Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation
Construction Products Regulation
  • Construction Product Regulation - Annex I (3) - Hazardous Substances
    EU. Hazardous Substances for Purposes of Annex I (3) (Requirements for Construction Works), Regulation 305/2011/EU on Marketing of Construction Products, amended by Regulation 574/2014/EU, 28 May 2014

    This list contains a non-exhaustive inventory of substances taken from: (1) Table 3 of Annex VI to CLP; (2) the Candidate List of SVHCs; (3) Annex XIV of REACH (Authorisation List); (4) Annex XVII of REACH (Restrictions List); (5) F-gases subject to emission limits/reporting per Regulation 517/2014/EU; and (6) volatile organic compounds (VOCs) listed in the Ambient Air Directive 2008/50/EC. The basis of the list is Annex I(3) of the Construction Products Regulation 305/2011/EC, which stipulates that construction works must not have a high impact on human health or the environment as a result of: giving off toxic gas; emissions of dangerous substances, volatile organic compounds (VOC), greenhouse gases or dangerous particles into indoor or outdoor air; release of dangerous substances into drinking water, ground water, marine waters, surface waters or soil.

General Product Safety Directive
  • General Product Safety Directive - Hazardous Substances
    EU. Hazardous Substances for Purposes of General Product Safety Directive (2001/95/EC), 15 January 2002, amended by Reg 596/2009/EC, 18 July 2009

    This list contains a non-exhaustive inventory of substances that fall within the European Union's hazardous substance definitions, as provided on: (1) Table 3 of Annex VI to the CLP Regulation 1272/2008/EC; (2) Annex III of Directive 2000/54/EC (Biological Agents); Candidate List of SVHCs; and REACH Annexes XIV and XVII (Authorisation and Restriction lists). They can be considered hazardous for purposes of the General Product Safety Directive 2001/95/EC.

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Substance names and other identifiers

Regulatory process names
Inorganic ammonium salts
Restriction list, Construction Product Regulation - Annex I (3) - Hazardous Substances, General Product Safety Directive - Hazardous Substances, Other
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Group members

This entry / group of substance has the following member substances:

Results list is empty
Name EC / List no. CAS no. Association
Triammonium iron(3+) trioxalate 220-952-2 2944-67-4 Expert judgement
Ammonium potassium tartrate 214-211-2 1114-14-3 Expert judgement
Ammonium iron(III) citrate 214-686-6 1185-57-5 Expert judgement
Diammonium tetracyanoplatinate 209-237-6 562-79-8 Expert judgement
Triammonium hexafluoroaluminate 232-052-7 7784-19-2 Expert judgement
Aluminium ammonium bis(sulphate) 232-055-3 7784-25-0 Expert judgement
Diammonium hydrogenarsenate 232-067-9 7784-44-3 Expert judgement
Ammonium chromate 232-138-4 7788-98-9 Expert judgement
Ammonium dichromate 232-143-1 7789-09-5 Expert judgement
Ammonium trioxovanadate 232-261-3 7803-55-6 Expert judgement
Diammonium iron bis(sulphate) 233-151-8 10045-89-3 Expert judgement
Ammonium iron phosphate 233-255-3 10101-60-7 Expert judgement
Ammonium iron bis(sulphate) 233-382-4 10138-04-2 Expert judgement
Diammonium dioxalato(oxo)titanate 234-174-6 10580-02-6 Expert judgement
Ammonium wolframate 234-364-9 11120-25-5 Expert judgement
Diammonium tetraborate 234-513-8 12007-58-8 Expert judgement
Ammonium bismuth(3+) 2-hydroxypropane-1,2,3-tricarboxylate(2:1:1) 229-528-1 6591-52-2 Expert judgement
Tetraammonium cerium tetrakis(sulphate) 231-567-4 7637-03-8 Expert judgement
Ammonium selenite 231-983-6 7783-19-9 Expert judgement
Ammonium selenate 231-985-7 7783-21-3 Expert judgement
Diammonium diuranium heptaoxide 231-986-2 7783-22-4 Expert judgement
Ammonium molybdate(VI) 236-031-3 13106-76-8 Expert judgement
Diammonium tetraoxotellurate 236-622-6 13453-06-0 Expert judgement
Ammonium dihydrogenarsenate 236-667-1 13462-93-6 Expert judgement
Diammonium magnesium bis(sulphate) 238-782-2 14727-95-8 Expert judgement
Beryllium diammonium tetrafluoride 238-948-4 14874-86-3 Expert judgement
Ammonium scandium(3+) disulphate 239-145-1 15091-94-8 Expert judgement
Nitric acid, ammonium calcium salt 239-289-5 15245-12-2 Expert judgement
Ammonium trifluorohydroxyborate(1-) 239-326-5 15283-48-4 Expert judgement
Triammonium hexachlororhodate 239-364-2 15336-18-2 Expert judgement
Diammonium yttrium pentanitrate 239-605-1 15552-06-4 Expert judgement
Ammonium manganese phosphate 239-688-4 15609-81-1 Expert judgement
Diammonium tetrachlorocuprate 239-690-5 15610-76-1 Expert judgement
Diammonium neodymium pentanitrate 239-721-2 15653-40-4 Expert judgement
Diammonium tetrabromopalladate(2-) 239-731-7 15661-00-4 Expert judgement
Diammonium nickel bis(sulphate) 239-793-5 15699-18-0 Expert judgement
Triammonium hexachloroiridate 239-842-0 15752-05-3 Expert judgement
Ammonium hexafluorosilicate 240-968-3 16919-19-0 Expert judgement
Ammonium hexafluorozirconate 240-970-4 16919-31-6 Expert judgement
Diammonium hexachloroplatinate 240-973-0 16919-58-7 Expert judgement
Diammonium hexachlorostannate 241-033-2 16960-53-5 Expert judgement
Ammonium hexafluorotitanate 241-036-9 16962-40-6 Expert judgement
Ammonium hexafluorogermanate(4) 241-037-4 16962-47-3 Expert judgement
Triammonium heptafluorozirconate(3-) 241-283-2 17250-81-6 Expert judgement
Ammonium hexabromoplatinate 241-394-6 17363-02-9 Expert judgement
Tetraammonium uranyl tricarbonate, of uranium depleted in uranium-235 241-988-5 18077-77-5 Expert judgement
Citric acid , ammonium nickel salt 242-161-1 18283-82-4 Expert judgement
Diammonium hexachlororuthenate 242-552-7 18746-63-9 Expert judgement
Diammonium hexachloropalladate 242-854-9 19168-23-1 Expert judgement
Diammonium hexakis(thiocyanato)platinate 243-002-9 19372-45-3 Expert judgement
Diammonium oxobis[sulphato(2-)-O]titanate(2-) 243-090-9 19468-86-1 Expert judgement
Ammonium chromium bis(sulphate) 236-923-2 13548-43-1 Expert judgement
Diammonium lanthanum pentanitrate 236-968-8 13566-21-7 Expert judgement
Diammonium manganese bis(sulphate) 236-969-3 13566-22-8 Expert judgement
Ammonium diamminetetrakis(thiocyanato-N)chromate(1-) 237-003-3 13573-16-5 Expert judgement
Diammonium copper(2+) disulphate 237-021-1 13587-25-2 Expert judgement
Diammonium cobalt bis(sulphate) 237-043-1 13596-46-8 Expert judgement
Ammonium perrhenate 237-075-6 13598-65-7 Expert judgement
Diammonium gadolinium pentanitrate 237-111-0 13628-49-4 Expert judgement
Ammonium calcium trinitrate 237-425-8 13780-11-5 Expert judgement
Diammonium zinc disulphate 237-483-4 13814-87-4 Expert judgement
Diammonium tetrachloropalladate 237-498-6 13820-40-1 Expert judgement
Diammonium tetrachloroplatinate 237-499-1 13820-41-2 Expert judgement
Diammonium pentachloronitrosylruthenate 237-504-7 13820-58-1 Expert judgement
Bis(acetato-O)diamminecopper 237-513-6 13822-80-5 Expert judgement
Ammonium tetrafluoroborate 237-531-4 13826-83-0 Expert judgement
Sulphuric acid, ammonium cerium salt 237-557-6 13840-04-5 Expert judgement
Ammonium pentafluorozirconate(1-) 237-596-9 13859-62-6 Expert judgement
Ammonium sodium sulphate 237-603-5 13863-45-1 Expert judgement
Triammonium trioxalatoferrate 238-090-0 14221-47-7 Expert judgement
Triammonium hexacyanoferrate 238-091-6 14221-48-8 Expert judgement
Chromic acid, ammonium salt 238-422-4 14445-91-1 Expert judgement
Tetraammonium hexacyanoferrate 238-476-9 14481-29-9 Expert judgement
Ammonium cobalt phosphate 238-633-1 14590-13-7 Expert judgement
Ammonium iron tartrate 238-678-7 14635-18-8 Expert judgement
Diammonium cerium(4+) trisulphate 238-682-9 14638-69-8 Expert judgement
Diammonium tetrachlorozincate(2-) 238-687-6 14639-97-5 Expert judgement
Triammonium pentachlorozincate(3-) 238-688-1 14639-98-6 Expert judgement
Hexaammonium heptamolybdate 234-722-4 12027-67-7 Expert judgement
Ammonium wolframate 234-732-9 12028-06-7 Expert judgement
Tetramanganese nitride 234-785-8 12033-07-7 Expert judgement
Diammonium hexachlororhenate 234-991-8 12051-87-5 Expert judgement
Tetraammonium disodium vanadate 235-012-7 12055-09-3 Expert judgement
Diammonium hexachloroosmate 235-188-5 12125-08-5 Expert judgement
Ammonium trivanadium octaoxide 235-384-0 12207-63-5 Expert judgement
Diammonium tetratungsten tridecaoxide 235-638-0 12398-61-7 Expert judgement
Tetraammonium hexamolybdate 235-650-6 12411-64-2 Expert judgement
Triammonium triiron tetracitrate 257-857-0 52336-55-7 Expert judgement
Sulphuric acid, ammonium magnesium salt 244-089-6 20861-69-2 Expert judgement
Ammonium samarium(3+) disulphate 244-699-2 21995-29-9 Expert judgement
Ammonium europium(3+) disulphate 244-700-6 21995-30-2 Expert judgement
Ammonium gadolinium(3+) disulphate 244-701-1 21995-31-3 Expert judgement
Ammonium lanthanum(3+) disulphate 244-702-7 21995-32-4 Expert judgement
Ammonium praseodymium(3+) disulphate 244-703-2 21995-33-5 Expert judgement
Ammonium neodymium(3+) disulphate 244-704-8 21995-34-6 Expert judgement
Ammonium iron tetrachloride 246-234-9 24411-12-9 Expert judgement
Ammonium chromic sulfate dodecahydrate 680-414-1 10022-47-6 Expert judgement
Nickel ammonium sulfate hexahydrate 680-452-9 7785-20-8 Expert judgement
Molybdate(2-), tetrathioxo-, diammonium, (T-4)- 640-219-4 15060-55-6 Expert judgement
Ethanedioic acid, ammonium iron(3+) salt (3:3:1), trihydrate 603-647-2 13268-42-3 Expert judgement
Sulfuric acid, ammonium iron(3+) salt (2:1:1), dodecahydrate 616-517-5 7783-83-7 Expert judgement
Titanate(2-), bis[ethanedioato(2-)-O,O']oxo-, diammonium, monohydrate, (SP-5-21)- 600-678-3 10580-03-7 Expert judgement
Phosphoric acid, ammonium cadmium salt (1:1:1) - 14520-70-8 Expert judgement
Ammonium magnesium arsenate - 14644-70-3 Expert judgement
Sulfuric acid, aluminum ammonium salt (2:1:1), tetracosahydrate - 14725-69-0 Expert judgement
Nickelate(1-), trichloro-, ammonium, hexahydrate - 16122-03-5 Expert judgement
Ammonium borate - 22694-75-3 Expert judgement
Ammonium tetrathiotungstate [(NH4)2WS4] 628-727-4 13862-78-7 Expert judgement
Struvite [(NH4)Mg(PO4).6H2O] - 15490-91-2 Expert judgement
Vanadate(3-), hexafluoro-, triammonium salt 621-084-0 13815-31-1 Expert judgement
Diammonium hexabromoosmate(2-) 246-340-5 24598-62-7 Expert judgement
Ammonium nickel trichloride 246-378-2 24640-21-9 Expert judgement
Acetic acid, ammonium zinc salt 246-492-2 24846-92-2 Expert judgement
Diammonium aquapentachlororuthenate 247-008-2 25461-53-4 Expert judgement
Ammonium bismuth citrate 247-078-4 25530-63-6 Expert judgement
Triammonium diaquaoctachloro-μ-nitridodiruthenate(3-) 248-399-2 27316-90-1 Expert judgement
Ammonium bis(cyano-C)aurate 250-464-5 31096-40-9 Expert judgement
Ammonium tetrachloroaurate 250-476-0 31113-23-2 Expert judgement
Citric acid, ammonium bismuth salt 250-856-6 31886-41-6 Expert judgement
Triammonium tris[carbonato(2-)-O]hydroxyzirconate(3-) 251-086-3 32535-84-5 Expert judgement
Selenious acid, ammonium salt (2:1) - 25425-97-2 Expert judgement
Boric acid (H3BO3), ammonium salt - 27522-09-4 Expert judgement
Sulfuric acid, ammonium magnesium salt (3:2:2) - 27733-50-2 Expert judgement
azanium;lanthanum(3+);tetranitrate - 31178-09-3 Expert judgement
Nitric acid, ammonium cerium(4+) salt (6:2:1) - 10139-51-2 Expert judgement
Ammonium lanthanum nitrate - 10169-00-3 Expert judgement
Aluminate(2-), difluoro[phosphato(3-)-κO]-, ammonium hydrogen (1:1:1) - 11095-65-1 Expert judgement
Ferrate(2-), difluoro[phosphato(3-)-κO]-, ammonium hydrogen (1:1:1) - 11095-66-2 Expert judgement
Vanadate (V10O286-), ammonium (1:6) - 12208-00-3 Expert judgement
Cryptohalite - 1309-32-6 Expert judgement
1,2,3-Propanetricarboxylic acid, 2-hydroxy-, ammonium iron salt, hydrate - 1332-98-5 Expert judgement
Mixtures of a permanganate with an ammonium salt - 13446-10-1 Expert judgement
Stannate(1-), trifluoro-, ammonium (9CI) - 15660-29-4 Expert judgement
Ammonium cerous sulfate tetrahydrate - 10049-02-2 Expert judgement
Chromate(1-), bis(benzenamine)tetrakis(thiocyanato-N)-, ammonium (9CI) - 10380-20-8 Expert judgement
Ammonium paratungstate hexahydrate - 12208-54-7 Expert judgement
Ammonium phosphotungstenate, trihydrate - 12704-02-8 Expert judgement
Ammonium 12-tungstophosphate - 1311-90-6 Expert judgement
Ferrate(3-), hexafluoro-, triammonium salt - 13815-28-6 Expert judgement
Platinate(1-), amminetrichloro-, ammonium, (SP-4-2)- - 13820-94-5 Expert judgement
Ammonium hexafluorogallate - 14639-94-2 Expert judgement
Cobalt ammonium complex - 14695-95-5 Expert judgement
Nitric acid, ammonium cerium(3+) salt (5:2:1) - 15318-60-2 Expert judgement
Tungstate(2-), dioxodithioxo-, diammonium (9CI) - 16150-61-1 Expert judgement
Triammonium uranyl pentafluoride - 12062-03-2 Expert judgement
Chromate(1-), diamminetetrakis(isothiocyanato)-, ammonium, hydrate - 19441-09-9 Expert judgement
Ferrate(2-), [N,N-bis[2-[bis(carboxymethyl)amino]ethyl]glycinato(3-)]-, ammonium hydrogen - 19529-40-9 Expert judgement
Vitaferro - 19864-63-2 Expert judgement
Sulfuric acid, ammonium cerium(3+) salt (2:1:1) - 21995-38-0 Expert judgement
Arsonic acid, methyl-, monoammonium salt - 2321-53-1 Expert judgement
Carbonic acid, ammoniumplutonium salt (8CI) - 24917-46-2 Expert judgement
Uranic acid, diammonium salt, hydrate - 28347-83-3 Expert judgement
1-Heptene-1-arsonic acid, 2-chloro-, monoammonium salt - 300-88-9 Expert judgement
Molybdate(2-),tetrafluorodioxo-, diammonium (8CI,9CI) - 30291-63-5 Expert judgement
Ammonium ferrocyanide trihydrate - 32108-79-5 Expert judgement
Ammonium Tetrachloroaluminate, NH4AlCl4 885-776-6 7784-14-7 Expert judgement
Ammonium ferric chromate - 7789-08-4 Expert judgement
Sulfuric acid, ammonium sodium salt, dihydrate - 7783-10-0 Expert judgement
Sulfuric acid, ammonium zinc salt (2:2:1), hexahydrate - 7783-24-6 Expert judgement
Sulfuric acid, ammonium magnesium salt (2:2:1), hexahydrate - 7785-18-4 Expert judgement