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化工社化工社 化学情報印刷レポート · 研究参考用
HCID 24402作成日：2026年10月27日

りん酸トリアンモニウム

りん酸トリアンモニウム · りん酸三アンモニウム三水和物 · りん酸三アンモニウム三水和物(りん酸アンモニウム,第三) · Einecs 233-793-9 · riazanium,phosphate · triazanium,phosphate · Aficamten Impurity 8 · triammmonium phosphate

https://huagongshe.com/ja/chemical/24402

りん酸トリアンモニウム の分子構造式

識別子と物理属性

CAS No.10361-65-6
分子式H3N.H3O4P
平均分子量115.03 g/mol
単同位体質量115.0034443 g/mol
SMILESO=P([O-])(O)O.[NH4+]
InChIKeyLFVGISIMTYGQHF-UHFFFAOYSA-N
PubChem CID24402
ChEBICHEBI:62982
EC No.231-764-5
DTXSIDDTXSID5029689
現地名りん酸トリアンモニウム

化学・物理的性質

極性表面積81.6
水素結合供与体数3
水素結合受容体数4
回転可能結合数0
重原子数6
形式電荷0
複雑度49.8
物質分類Other Classes -> Salts, Basic
PolymersPlastics -> Flame retardantsPlastics -> N.a.
化粧品BufferingOral care
pHpH of 0.2 Molar aq soln: 4.2
SpringerMaterials Propertiesthermal expansion coefficient
臭いOdorlessFaint acid
食品添加物LEAVENING AGENT, MALTING OR FERMENTING AID, PH CONTROL AGENT -> FDA Substance added to food
密度1.80 g/cu cm1.803 @25 °C
Flame RetardantsFlame retardants
Color/FormWhite, tetrahedral crystalsBrilliant white crystals or powder
溶解度Slightly soluble in ethanolinsoluble in acetone40.4 g/100 g water at 25 °C1 g dissolves in about 2.5 mL waterslightly soluble in alcoholpractically insoluble in acetone25.0 at 25℃
DecompositionDecomposes to ammonia and phosphoric acid when heated.
外観・状態ソリッド（概算）
色white prisms
EPAの化学物質情報Phosphoric acid, triammonium salt (10361-65-6)

安全性と法規制

GHS 分類This chemical does not meet GHS hazard criteria for 85.8% (994 of 1158) of all reports.WarningH319 (12.1%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]P264+P265, P280, P305+P351+P338, and P337+P317 (click each P-code to see the statement)Aggregated GHS information provided per 1158 reports by companies from 16 notifications to the ECHA C&L Inventory.
規制情報Chemical: Phosphoric acid, ammonium salt (1:1)Phosphoric acid, ammonium salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Phosphoric acid, ammonium salt (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 11-04-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15548Monoammonium phosphate: Does not have an individual approval but may be used under an appropriate group standard
その他の安全情報IMAP assessments - Phosphoric acid, monoammonium salt: Environment tier I assessment
有害性の概要A skin and eye irritant that may cause respiratory tract irritationthe diammonium form of ammonium phosphate may release enough ammonia in an enclosed space to cause pulmonary edema[CAMEO]
FDA 要件Substance added directly to human food affirmed as generally recognized as safe (GRAS).Ammonium phosphate (mono-, and dibasic) used as a general purpose food additive in animal drugs, feeds, and related products is generally recognized as safe when used in accordance with good manufacturing or feeding practice.
Special ReportsWHODiseases Caused by Phosphorus and Its Toxic CompoundsEarly Detection of Occupational Diseases pg 53-62 (1986). Review of diseases and health related effects resulting from exposure to phosphorus or phosphorus cmpd.
FIFRA 要件Residues of monoammonium phosphate are exempted from the requirement of a tolerance when used in accordance with good agricultural practice as inert (or occasionally active) ingredients in pesticide formulations applied to growing crops or to raw agricultural commodities after harvest. Use: Postharvest fumigation in formulation with aluminum phosphide. Limit: No more than 3.75% by weight in formulation.
Toxic Combustion ProductsToxic and irritating fumes of ammonia and oxides of nitrogen may form in fires.
Hazard Classes and CategoriesEye Irrit. 2 (12.1%)
Hazardous Reactivities and IncompatibilitiesA self-propagating reaction can occur when either sodium bicarbonate or potassium bicarbonate-based dry chemical extinguishing agent is mixed with monoammonium phosphate dry chemical extinguishing agent. Moisture will accelerate the reaction. Products are water, ammonia, carbon dioxide and various solid substances. In a fire extinguisher the pressure developed will blow out the valve.An explosive reaction occurred when monoammonium phosphate was used to extinguish a sodium fire. No reactions were experienced when sodium bicarbonate or potassium bicarbonate was used in a sodium fire.
処分方法SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air qualitypotential migration in soil or watereffects on animal and plant lifeand conformance with environmental and public health regulations.
Allowable TolerancesResidues of monoammonium phosphate are exempted from the requirement of a tolerance when used in accordance with good agricultural practice as inert (or occasionally active) ingredients in pesticide formulations applied to growing crops or to raw agricultural commodities after harvest. Use: Postharvest fumigation in formulation with aluminum phosphide. Limit: No more than 3.75% by weight in formulation.
Protective Action Criteria (PAC)17 [mg/m3]190 [mg/m3]1100 [mg/m3]
Human Toxicity Excerpts/SIGNS AND SYMPTOMS/ Acute ... eye contact with concentrated alkali causes conjunctival edema and corneal destruction. Alkalies penetrate skin slowly. Extent of damage therefore depends on duration of contact. Chronic poisoning (from skin contact). Chronic dermatitis may follow repeated contact ... /Alkalies and Phosphates//OTHER TOXICITY INFORMATION/ ... With large doses of ... ammonium /salts/, there arises the possibility of sufficient absorption to produce diuresis and systemic ammonia poisoning, particularly if material is administered parenterally. /Ammonium Salts/
Non-Human Toxicity Excerpts/LABORATORY ANIMALS: Acute Exposure/... It has been shown that solutions containing 0.1 molar ... ammonium phosphate ... at pH 7-7.5 made up to 0.46 osmolar (1.5 times isotonic concentration) by addition of sodium chloride or sucrose and dripped continuously on eyes of rabbits caused edema of epithelium of the cornea within 3-3.5 hr. /Ammonium Phosphate/
Probable Routes of Human ExposureAccording to the 2006 TSCA Inventory Update Reporting data, the number of persons reasonably likely to be exposed in the industrial manufacturing, processing, and use of ammonium dihydrogen phosphate is 1000 or greaterthe data may be greatly underestimated(1).
Antidote and Emergency Treatment/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Ammonia and related compounds//SRP:/ Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for signs of pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mg/kg up to 200 ml of water for dilution if the patent can swallow, has a strong gag reflex, and does not drool ... . Do not attempt to neutralize. /Ammonia and related compounds//SRP:/ Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques with a bag-valve-mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Monitor cardiac rhythm and treat arrhythmias if necessary ... . Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs of fluid overload ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Ammonium and related compounds//SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Phosphorus and related compounds/For more Antidote and Emergency Treatment (Complete) data for AMMONIUM DIHYDROGEN PHOSPHATE (6 total), please visit the HSDB record page.
RAIS Toxicity Values48.6PPRTV Archive0.09PPRTV Current
Acceptable Daily IntakesFAO/WHO Expert Committee on Food Additives ... recommended ... /levels/ for total dietary phosphorus ... unconditional acceptance level /of less than 30 mg/kg body wt/ is considered safe in any type of diet ... conditional acceptance level /of 30-70 mg/kg body wt/ is acceptable only when dietary calcium level is high. /Phosphates/
Non-Human Toxicity ValuesLD50 Rabbit dermal >7940 mg/kg bwLD50 Rat oral 5750 mg/kg bw
EPA Provisional Peer-Reviewed Toxicity ValuesMonoammonium phosphate9 x 10^-2 mg/kg-dayPDF DocumentInadequate information to assess carcinogenic potential2021
TSCA 収載状態TSCA listed