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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 943作成日:2026年10月27日

硝酸アニオン

硝酸イオン · ニトラート · 硝酸アニオン · 硝酸塩 · 硝酸性窒素 · ビス(1-ナフチルメチル)アミニウム · ビス[(ナフタレン-2-イル)メチル]アザニウム · ビス(2-ナフチルメチル)アミニウム

https://huagongshe.com/ja/chemical/943

硝酸アニオン の分子構造式

識別子と物理属性

CAS No.14797-55-8
分子式NO3-
平均分子量62.005 g/mol
単同位体質量61.98781786 g/mol
SMILESO=[N+]([O-])[O-]
InChIKeyNHNBFGGVMKEFGY-UHFFFAOYSA-N
PubChem CID943
ChEMBLCHEMBL186200
ChEBICHEBI:17632
DTXSIDDTXSID5024217
現地名硝酸アニオン

化学・物理的性質

XLogP-1.4
極性表面積62.9
水素結合供与体数0
水素結合受容体数3
回転可能結合数0
重原子数4
形式電荷-1
複雑度18
Physical DescriptionSolid
貯蔵条件2-8°C
外観・状態液体
色無色透明
溶解度水と混和します。
InChIInChI=1S/NO3/c2-1(3)4/q-1
InChIKeyNHNBFGGVMKEFGY-UHFFFAOYSA-N
SMILES[N+]([O-])([O-])=O
EPAの化学物質情報Nitrate (14797-55-8)

化学的特性

A colorless liquid.

安全性と法規制

規制情報Hazard Traits - HematotoxicityAuthoritative List - CA MCLsCWA 303(d)Report - if used as a fragrance or flavor ingredientRegulation (EC) No 1831/2003 (amended)
輸送ラベル(DOT)Oxidizer
火災危険Excerpt from ERG Guide 140 [Oxidizers]:CAUTION: Ammonium nitrate products may explode if involved in fire or contaminated with hydrocarbons (fuels), organic matter, other contaminants or when hot molten and contained. Treat as an explosive (ERG Guide 112). These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard. (ERG, 2024)
健康有害性Excerpt from ERG Guide 140 [Oxidizers]:Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause environmental contamination. (ERG, 2024)
反応性グループNitrate and Nitrite Compounds, Inorganic
Reactivity AlertsExplosiveStrong Oxidizing Agent
Reactivity ProfileMixtures of metal/nonmetal nitrates with alkyl esters may explode, owing to the formation of alkyl nitratesmixtures of a nitrate with phosphorus, tin (II) chloride, or other reducing agents may react explosively [Bretherick 1979 p. 108-109].
DOT Hazard ClassificationNitrates, inorganic, aqueous solution, n.o.s.UN3218Div 5.1 Oxidizer (49 eCFR § 173.127)PG II: the degree of danger presented by the material is mediumPG III: the degree of danger presented by the material is minorFor more information about the packing group assignment, please visit 49 eCFR § 173Nitrates, inorganic, n.o.s.
Air and Water Reactions

用途

解説

一般式MINO3.一般に,水溶性の無色結晶.加熱すると,最終的に酸素あるいは窒素酸化物を放って分解するので,強い酸化作用がある.

説明

Nitrate is commonly found in drinking water sources especially in agricultural areas where nitrogen fertilizer is used, and where unregulated shallow private wells are more at the risk of contamination. The World Health Organization (WHO) guideline of 50 ppm and the US maximum contaminant level (MCL) of 45 ppm for nitrate in drinking water have been established for protecting infants from methemoglobinemia, commonly known as blue baby syndrome. The health protective value continues to be a subject of public health interest for many years, with varying opinion on whether it is too high or too low. Evaluation of nitrate will need to include consideration of nitrite because both are closely related in the nitrogen cycle in the environment and the body, and nitrite plays a major role in inducing toxicity after its formation from nitrate. More recently, reports of nitrate in drinking water, especially at levels higher than 50 ppm, have been associated with other health effects other than methemoglobinemia. This toxicological review provides an update on the health effects of nitrate with a focus on methemoglobinemia, reproductive and developmental effects, potential carcinogenicity, and especially endocrine/thyroid effects.

使用

In the treatment of angina pectoris; in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers, dye intermediates, explosives, and many different organic chemicals.

一般的な説明

Crystalline solids. Salts of nitrate, such as ammonium nitrate, potassium nitrate, and sodium nitrate.

No rapid reaction with air. No rapid reaction with water.
消火Excerpt from ERG Guide 140 [Oxidizers]:SMALL FIRE: Use water. Do not use dry chemicals or foams. CO2 or Halon® may provide limited control.LARGE FIRE: Flood fire area with water from a distance. Do not move cargo or vehicle if cargo has been exposed to heat. If it can be done safely, move undamaged containers away from the area around the fire.FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: For ammonium nitrate products: Do not fight cargo fire. Withdraw, evacuate and isolate area for at least 1600 meters (1 mile). Treat as an explosive (ERG Guide 112). Do not enter area for 24 hours or until expert advice has been provided. Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzlesif this is impossible, withdraw from area and let fire burn. (ERG, 2024)
応急処置Excerpt from ERG Guide 140 [Oxidizers]:Refer to the "General First Aid" section. Specific First Aid: Contaminated clothing may be a fire risk when dry. (ERG, 2024)
非火災時の漏出対応Excerpt from ERG Guide 140 [Oxidizers]:Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Do not get water inside containers.SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover looselymove containers from spill area.SMALL LIQUID SPILL: Use a non-combustible material like vermiculite or sand to soak up the product and place into a container for later disposal.LARGE SPILL: Dike far ahead of liquid spill for later disposal. (ERG, 2024)
Isolation and EvacuationExcerpt from ERG Guide 140 [Oxidizers]:IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.LARGE SPILL: Consider initial downwind evacuation for at least 100 meters (330 feet).FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directionsalso, consider initial evacuation for 800 meters (1/2 mile) in all directions. If ammonium nitrate products are in a tank, rail car or truck and involved in a fire, ISOLATE for 1600 meters (1 mile) in all directionsalso, initiate evacuation including emergency responders for 1600 meters (1 mile) in all directions. (ERG, 2024)
Protective Action Criteria (PAC)0.16 [ppm]24 [ppm]92 [ppm]
Personal Protective Equipment (PPE)Excerpt from ERG Guide 140 [Oxidizers]:Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE. Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2024)
TreatmentMethemoglobinemia can be treated with supplemental oxygen and methylene blue 1% solution administered intravenously slowly over five minutes followed by IV flush with normal saline. Methylene blue restores the iron in hemoglobin to its normal (reduced) oxygen-carrying state. (L1613)
標的器官Hematologic
健康影響Nitrate and nitrite poisoning causes methemoglobinemia. Nitrites may cause pregnancy complications and developmental effects. They may also be carcinogenic. (L1137)
有害作用Main adverse effects from nitrate use come from dilation of the venous blood vessels. Other side effects can be reflexes from the activation of the sympathetic nervous system or re-exposure after withdrawal. These side effects include:* Headaches (greater than 10%)* Hypotension (0.1 to 10%)* Cutaneous flushing (0.1 to 10%)* Syncope (0.1 to 10%)* Reflex tachycardia (0.1 to 10%)* Methemoglobinemia (rare)* Monday disease (tachycardia, headache, and dizziness during re-exposure)
暴露経路Oral (L1137)inhalation (L1137)
毒性の概要There is currently no evidence of the teratogenicity or carcinogenicity potential of nitrate.Methemoglobinemia can be caused by nitrate toxicity in rare cases. Generally, supportive care and cessation of nitrate should be sufficient for most cases of methemoglobinemia. Methylene blue is an effective antidote if needed.Nitrate's toxicity is a result of it's conversion to nitrite once in the body. Nitrite causes the autocatalytic oxidation of oxyhemoglobin to hydrogen peroxide and methemoglobin. This elevation of methemoglobin levels is a condition known as methemoglobinemia, and is characterized by tissue hypoxia, as methemoglobin cannot bind oxygen. (A2450, L1613)
Signs and SymptomsNitrate and nitrite poisoning causes methemoglobinemia. Symptoms include cyanosis, cardiac dysrhythmias and circulatory failure, and progressive central nervous system (CNS) effects. CNS effects can range from mild dizziness and lethargy to coma and convulsions. (L1137)
EPA IRIS InformationNitrateHematologic1.6 mg/kg-day
Carcinogen ClassificationIngested nitrate or nitrite under conditions that result in endogenous nitrosation is probably carcinogenic to humans (Group 2A). (L135)
Toxicity DataLD50: 138 ppm over 30 minutes (Inhalation, Rat) (A677)
RAIS Toxicity Values4ATSDR Final1.6IRIS Current
USGS Health-Based Screening Levels for Evaluating Water-QualityNitrogen, Nitrate00618Nutrient10000Nitrate (as N)Smith, C.D. and Nowell, L.H., 2024. Health-Based Screening Levels for evaluating water-quality data (3rd ed.). DOI:10.5066/F71C1TWP