아질산(III)산
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아질산(III)산 속성
- 밀도
- 1.54±0.1 g/cm3(Predicted)
- 물리적 상태
- 용액에서만 안정함
- 산도 계수 (pKa)
- pK (25°) 3.35
- 색상
- stable only in solution
- 수소이온지수(pH)
- 3.28(1 mM solution);2.67(10 mM solution);2.13(100 mM solution)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
유해 물질 데이터 | 7782-77-6(Hazardous Substances Data) | ||
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기존화학 물질 | KE-26035 |
그림문자(GHS): |
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신호 어: | Danger | ||||||||||||||||||||||||||
유해·위험 문구: |
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예방조치문구: |
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아질산(III)산 C화학적 특성, 용도, 생산
개요
Nitrous acid (molecular formula?HNO2) is a weak and monobasic acid known only in solution and in the form of nitrite salts. Nitrous acid rapidly decomposes into nitrogen oxide, nitric oxide and water when in solution:2HNO2 ? NO2 + NO+H2O
It can also decompose into nitric acid and nitrous oxide and water.
4HNO2 ? 2HNO3 +N2O +H2O
Nitric acid (HNO3), also known as “aqua fortis” and “spirit of nitre”, is a highly corrosive and toxic strong acid that can cause severe burns. It is colorless when pure and a slight yellow when “glacial”. Older samples tend to acquire a yellow cast due to the accumulation of various oxides of nitrogen. If the solution contains more than 86% nitric acid, it is referred to as “fuming nitric acid”.
화학적 성질
A weak acid occurring only in the form of a light-blue solution.물리적 성질
Pale blue solution; stable only in solution; weak acid, Ka 4.5x10-4.용도
Formation of diazotizing compounds by reaction with primary aromatic amines, source of nitric oxide.용도
Nitrous acid is a nitrogen oxoacid. It is a conjugate acid of a nitrite. It (as sodium nitrite) is used as part of an intravenous mixture with sodium thiosulfate to treat cyanide poisoning. There is also research to investigate its applicability towards treatments for heart attacks, brain aneurysms, pulmonary hypertension in infants, and Pseudomonas aeruginosa infections.제조 방법
Nitrous acid may be obtained in solution by adding a strong acid to nitrite; e.g., adding hydrochloric acid to sodium nitrite solution:H+ + NO2 ˉ → HNO2.
정의
A weak acid known only in solution, obtained by acidifying a solution of a nitrite. It readily decomposes on warming or shaking to nitrogen monoxide and nitric acid. The use of nitrous acid is very important in the dyestuffs industry in the diazo reaction: nitrous acid is liberated by acidifying a solution of a nitrite (usually sodium nitrite) in the presence of the compound to be diazotized. Nitrous acid and the nitrites are normally reducing agents but in certain circumstances they can behave as oxidizing agents, e.g. with sulfur dioxide and hydrogen sulfide.위험도
Rapidly forms nitric oxide and nitric acid in water; [Merck Index] A strong oxidizer; Causes burns; Highly toxic by ingestion and inhalation.Safety Profile
Mutation data reported. Flammable by chemical reaction; a powerful oxidizer. Explodes on contact with phosphorus trichloride. Reacts violently with PH3 and Pcb. Reactions with l-amino- 5-nitrophenol, ammonium decahydroborate(2-), hydrazine (product is hydrogen azide) may give explosive products. Incompatible with anilines (e.g., 4- bromoahe , 2-chloroaniline, 3- chloroaniline, 2-nitroadine, 3-nitroaniline, 4-nitroaniline, aniline ), semicarbazone, silver nitrate. When heated to decomposition it emits hghly toxic fumes of NOx. See also NITRIC OXIDE.아질산(III)산 준비 용품 및 원자재
원자재
준비 용품
아질산(III)산 공급 업체
글로벌( 24)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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ShanDong Look Chemical Co.,Ltd. | +8617653113219 |
sales01@sdlookchemical.com | China | 2739 | 58 |
Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 |
1026@dideu.com | China | 8722 | 58 |
Golden Pharma Co., Limited | +undefined18958062155 |
sales@zjgoldpharm.com | China | 5905 | 58 |
Hu Bei Jiutian Bio-medical Technology CO.,Ltd | 027-88013699 17354350817 |
Ryan@jiutian-bio.com | China | 7431 | 58 |
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. | 025-66113011 18112977050 |
cb6@aikonchem.com | China | 16687 | 50 |
Lynnchem | 86-(0)29-85992781 17792393971 |
info@lynnchem.com | China | 4587 | 58 |
Novachemistry | 44-20819178-90 02081917890 |
info@novachemistry.com | United Kingdom | 4381 | 58 |
Lianyungang Xuanyuan Chemical Co., Ltd | +86-0518-85415818 18000194506 |
18000194506@qq.com | China | 309 | 55 |
Rhawn Reagent | 400-400-1332688 18019345275 |
amy@rhawn.cn | China | 15503 | 58 |
Hubei yongkuo Technology Co., Ltd | 027-59223108 15972152991 |
1248580099@qq.com | China | 9988 | 58 |
아질산(III)산 관련 검색:
9-나이트로안트라신 tert-부틸나이트라이트 2,7-디니트로-9-플루오레논 2-니트로플로렌
2,5-Bis(trifluoromethyl)nitrobenzene
1-NITRO-1-CYCLOHEXENE
2-NITROFLUORENONE
2,7-Dinitrofluorene
9-DICYANOMETHYLENE-2,4,7-TRINITROFLUORENE
2,4,5,7-TETRANITRO-9-FLUORENONE
2,4,7-TRINITRO-9-FLUORENONE
CYCLOHEXANONE 2,4-DINITROPHENYLHYDRAZONE
NITROCYCLOPENTANE
3-nitrofluoren-9-one
2-NITROCYCLOHEXANONE
2-BROMO-7-NITROFLUORENE
2-FLUORO-7-NITROFLUORENE, 99
2-acetamido-3-nitro-9-fluorenone