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아질산 나트륨

아질산 나트륨
아질산 나트륨 구조식 이미지
카스 번호:
7632-00-0
한글명:
아질산 나트륨
동의어(한글):
입방칠레초석;나트륨칠레초석;나트륨(+1)질산;나트륨(I)질산;니트라틴;아질산나트륨;칠레초석;아질산나트륨;소듐나이트라이트;아질산 나트륨;아질산 나트륨염(1:1);아질산 소다;아질산 소듐;아질산 소듐 (NaNO2);아질산 소듐 염 (1:1);아질산 알칼리 금속;아질산, 나트륨염;아질산, 소듐 염;아질산, 소듐 염 (1:1)
상품명:
Sodium nitrite
동의어(영문):
erinitrit;filmerine;anti-rust;nci-c02084;synfat1004;azotynsodowy;dusitansodny;natriumnitrit;nitritosodico;Sodiumnirite
CBNumber:
CB6392237
분자식:
NaNO2
포뮬러 무게:
69
MOL 파일:
7632-00-0.mol

아질산 나트륨 속성

녹는점
271 °C (lit.)
끓는 점
320 °C
밀도
2.17g/cm3
저장 조건
2-8°C
용해도
aqueous acid: 1 - 2μl acetic acid per ml H2Osoluble
물리적 상태
powder
색상
White or colorless
Specific Gravity
2.168
냄새
Odorless
pH 범위
9
수소이온지수(pH)
9 (100g/l, H2O, 20℃)
수용성
820 g/L (20 ºC)
감도
Hygroscopic
Merck
14,8648
안정성
Stable. Incompatible with reducing agents, strong oxidizing agents, organics and other flammable materials, finely powdered metals. Contact with combustible material may lead to fire. Hygroscopic.
InChIKey
LPXPTNMVRIOKMN-UHFFFAOYSA-M
CAS 데이터베이스
7632-00-0(CAS DataBase Reference)
EPA
Sodium nitrite (7632-00-0)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 O,T,N,Xn
위험 카페고리 넘버 8-25-50-22-36/38
안전지침서 45-61-36-26
유엔번호(UN No.) UN 3219 5.1/PG 3
WGK 독일 3
RTECS 번호 RA1225000
F 고인화성물질 10
자연 발화 온도 914 °F
TSCA Yes
위험 등급 5.1
포장분류 III
HS 번호 28341000
유해 물질 데이터 7632-00-0(Hazardous Substances Data)
독성 LD50 orally in rats: 180 mg/kg (Smyth)
기존화학 물질 KE-31546
유해화학물질 필터링 97-1-167
함량 및 규제정보 물질구분: 유독물질; 혼합물(제품)함량정보: 아질산 염류 및 이를 25% 이상 함유한 혼합물
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H272 화재를 강렬하게 함; 산화제 산화성 액체;산화성 고체 구분 2
구분 3
위험
경고
P210, P220, P221P280, P370+P378,P501
H301 삼키면 유독함 급성 독성 물질 - 경구 구분 3 위험 P264, P270, P301+P310, P321, P330,P405, P501
H302 삼키면 유해함 급성 독성 물질 - 경구 구분 4 경고 P264, P270, P301+P312, P330, P501
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H330 흡입하면 치명적임 급성 독성 물질 흡입 구분 1, 2 위험 P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
H400 수생생물에 매우 유독함 수생 환경유해성 물질 - 급성 구분 1 경고 P273, P391, P501
H402 수생생물에 유해함 수생 환경유해성 물질 - 급성 구분 3
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P220 의류 그리고 가연성 물질로부터 멀리하시오.
P221 가연성 물질과 혼합되지 않도록 조치하시오.
P273 환경으로 배출하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P320 긴급히 (…) 처치를 하시오.
P330 입을 씻어내시오.
P391 누출물을 모으시오.
P301+P310 삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.
P304+P340 흡입하면 신선한 공기가 있는 곳으로 옮기고 호흡하기 쉬운 자세로 안정을 취하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P337+P313 눈에 대한 자극이 지속되면 의학적인 조치· 조언를 구하시오.
P370+P378 화재 시 불을 끄기 위해 (Section 5. 폭발, 화재시 대처방법의 적절한 소화제)을(를) 사용하시오.
P405 밀봉하여 저장하시오.
NFPA 704
0
3 1
OX

아질산 나트륨 MSDS


Sodium nitrite

아질산 나트륨 C화학적 특성, 용도, 생산

물성

흰색의결정으로, 물에 매우 잘녹고 흡습성이 있다.
 

화학 반응

2NaOH + NO2 + NO → 2NaNO2 + H2O
NO2 + NO는 HNO2 로 대체될 수 있다.
 

용도

천연 질산나트륨은 주로 비료로 쓰이며, 합성 질산나트륨은 유리의 소포제, 열처리제, 화약의 제조, 녹는점 강하제, 식품의 발색제, 의약품의 합성 등으로 쓰임. 아질산나트륨, 질산칼륨(KNO3)과 함께 소시지, 햄 등의 육류 가공품의 발색제로 사용 됨.

독성

치사량은 성인의 경우 4~6g 정도인데[2], 대량 복용시 혈액중의 헤모글로빈을 산화시켜 헤모글로빈의 산소운반 능력을 상실시키는 메트헤모글로빈을 형성, 죽음에 이르게 한다. 중국에서 만든 식제품에 대량의 아질산염이 들어가 중독 증세를 일으켜 문제가 된 적이 있었고, 소금으로 착각하고 국에 아질산염을 넣었다가 호흡곤란으로 죽는 사고도 있었다.
혈관을 확장시키는 효과가 있어서 두통의 원인이 되기도 한다.

개요

Sodium nitrite is similar in name and use to sodium nitrate. Both are preservatives used in processed meats, such as salami, hot dogs, and bacon. Sodium nitrite has been synthesized by several chemical reactions that involve the reduction of sodium nitrate. Industrial production of sodium nitrite is primarily by the absorption of nitrogen oxides into aqueous sodium carbonate or sodium hydroxide. Over the years, sodium nitrite has raised some concerns about its safety in foods, but it remains in use and there are indications that it may actually be healthy. Sodium nitrite was developed during the 1960s. In 1977, the US Department of Agriculture (USDA) considered banning it but the USDA’s final ruling on the additive came out in 1984, allowing its use. Studies in the 1990s indicated some adverse effects of sodium nitrite, for instance the potential to cause childhood leukemia and brain cancers. In the late 1990s, the National Toxicity Program (NTP) began a review of sodium nitrite and proposed listing sodium nitrite as a developmental and reproductive toxicant, but a report in 2000 by NTP proposed that sodium nitrite is not a toxic substance and removed it from the list of developmental and reproductive toxicants. It is now believed that it can help with organ transplants and leg vascular problems, while preventing heart attacks and sickle cell disease.

화학적 성질

Sodium nitrite, NaN02, is a fire-hazardous, air-sensitive, yellowish white powder that is soluble in water and decomposes at temperatures above 320°C (608 °F). Sodium nitrite is used as an intermediate for dye stuffs and for pickling of meat, in dyeing of textiles, in rustproofing, in medicine, and as a reagent in organic chemistry.

용도

Sodium nitrite is a myeloperoxidase inhibitor with IC50 of 1.3 μM

용도

manufacture of diazo dyes, nitroso Compounds, and in many other processes of manufacture of organic chemicals; dyeing and printing textile fabrics; bleaching flax, silk, and linen; photography. In meat curing, coloring and preserving; in processing smoked chub. Also as reagent In animal chemistry.

용도

Sodium Nitrite is the salt of nitrous acid that functions as an anti- microbial agent and preservative. it is a slightly yellow granular powder or nearly white, opaque mass or sticks. it is deliquescent in air. it has a solubility of 1 g in 1.5 ml of water. it is used in meat cur- ing for color fixation and development of flavor. see nitrite.

정의

sodium nitrite: A yellow hygroscopiccrystalline compound, NaNO2,soluble in water, slightly soluble inether and in ethanol; rhombohedral;r.d. 2.17; m.p. 271°C; decomposesabove 320°C. It is formed by the thermal decomposition of sodium nitrateand is used in the preparation of nitrousacid (reaction with cold dilutehydrochloric acid). Sodium nitrite isused in organic diazotization and asa corrosion inhibitor.

생산 방법

Sodium nitrite, yellowish-white solid, soluble, formed (1) by reaction of nitric oxide plus nitrogen dioxide and sodium carbonate or hydroxide, and then evaporating, (2) by heating sodium nitrate and lead to a high temperature, and then extracting the soluble portion (lead monoxide insoluble) with H2O and evaporating. Used as an important reagent (diazotizing) in organic chemistry.

정의

ChEBI: An inorganic sodium salt having nitrite as the counterion. Used as a food preservative and antidote to cyanide poisoning.

일반 설명

A yellowish white crystalline solid. Noncombustible but will accelerate the burning of combustible material. If large quantities are involved in a fire or if the combustible material is finely divided, an explosion may result. If contaminated by ammonium compounds, spontaneous decomposition can occur and the resulting heat may ignite surrounding combustible material. Prolonged exposure heat may result in an explosion. Toxic oxides of nitrogen are produced in fires involving Sodium nitrite. Used as a food preservative, and to make other chemicals.

공기와 물의 반응

Soluble in water.

반응 프로필

Sodium nitrite is an oxidizing agent. Mixtures with phosphorus, tin(II) chloride or other reducing agents may react explosively [Bretherick 1979 p. 108-109]. If contaminated by ammonium compounds, spontaneous decomposition can occur and resulting heat may ignite surrounding combustible material. Reacts with acids to form toxic nitrogen dioxide gas. Mixing with liquid ammonia forms dipotassium nitrite, which is very reactive and easily explosive [Mellor 2, Supp. 3:1566 1963]. Melting together wilh an ammonium salt leads to a violent explosion [Von Schwartz 1918 p. 299]. A mixture with potassium cyanide may cause an explosion. Noncombustible but accelerates the burning of all combustible material. If large quantities are involved in fire or if the combustible material is finely divided, an explosion may result. When a little ammonium sulfate is added to fused potassium nitrite, a vigorous reaction occurs attended by flame [Mellor 2:702. 1946-47].

위험도

Dangerous fire and explosion risk when heated to 537C (1000F) or in contact with reducing materials; a strong oxidizing agent. Carcinogen in test animals; its use in curing fish and meat products is restricted to 100 ppm.

건강위험

Ingestion (or inhalation of excessive amounts of dust) causes rapid drop in blood pressure, persistent and throbbing headache, vertigo, palpitations, and visual disturbances; skin becomes flushed and sweaty, later cold and cyanotic; other symptoms include nausea, vomiting, diarrhea (sometimes), fainting, methemoglobinemia. Contact with eyes causes irritation.

Safety Profile

Human poison by ingestion. Experimental poison by ingestion, inhalation, subcutaneous, intravenous, and intraperitoneal routes. Human systemic effects by ingestion: motor activity changes, coma, decreased blood pressure with possible pulse rate increase without fall in blood pressure, arteriolar or venous dlation, nausea or vomiting, and blood me themoglo binemiacarboxyhemoglobinemia. Experimental teratogenic and reproductive effects. An eye irritant. Questionable carcinogen with experimental neoplas tigenic and tumorigenic data. Human mutation data reported. It may react with organic amines in the body to form carcinogenic nitrosamines. Flammable; a strong oxidizing agent. In contact with organic matter, will ignite by friction. May explode when heated to over 100O0F or on contact with cyanides, NH4' salts, cellulose, LI, (K + NH3), Na2S203. Incompatible with aminoguanidine salts, butadene, phthalic acid, phthalic anhydride, reductants, sodlum amide, sodmm disulfite, sodium thocyanate, urea wood. When heated to decomposition it emits toxic fumes of NOx and NaaO. See also NITRITES.

환경귀착

Routes and Pathways, and Relevant Physicochemical Properties
Sodium nitrite is a strong oxidizing agent at high temperature and also is a strong supporter of combustion. It is freely soluble in water (very soluble in water (80%) at 20 °C), and slightly soluble in ethanol (0.3%) and methanol (0.45%). Partition coefficient in octanol–water and log Pow is equal to -3.7. Vapor pressure is 9.9E-17 hPa (7.44E-17mmHg). Sodium nitrite may explode on heating above 530 °C, is not combustible but enhances combustion of other substances, and gives irritating or toxic fumes (or gases) in a fire. Furthermore, based on the estimated Henry’s law constant at 25 °C =2.06E-07 atm-m3 mol-1 for sodium nitrite, volatilization from water and moist soil surface is not plausible.
Partition Behavior in Water, Sediment, and Soil
This substance dissociates immediately into sodium and nitrite ions in water. Concentrations of nitrate in rainwater of up to 5mg l-1 have been observed in industrial areas.
Environmental Persistency
In the air, the vapor phase of norethisterone can be degraded by reaction with photochemically produced hydroxyl radicals with an estimated half-life of 1.1 h, while the particulate phase can be removed by wet or dry deposition. Norethisterone is likely susceptible to photolysis by sunlight because of posing chromophores that absorb at wavelengths more than 290 nm. Hydrolysis of norethisterone is not anticipated under environmental condition because it lacks a functional group to hydrolyze.
Indirect photo oxidation by hydroxy radicals (1500 000 molecules cm-3) is predicted to occur with a half-life estimated at 82.3 days.

Purification Methods

Crystallise NaNO2 from hot water (0.7mL/g) by cooling to 0o, or from its own melt. Dry it over P2O5. (See KNO2.)

Toxicity evaluation

Nitrite in blood is highly reactive with hemoglobin and causes methemoglobinemia. The oxygen-carrying capacity of methemoglobin is much less than that of hemoglobin. Human is more sensitive than rat in this respect. So, the primary acute toxic effects of sodium nitrite in animals results from methemoglobinemia. The secondary toxic effects of acute sodium nitrite in animals result in vasodilatation, relaxation of smooth muscle, and lowering of blood pressure. In humans, sodium nitrite causes smooth muscle relaxation, methemoglobinemia, and cyanosis. Also in humans, nitrosating agents (e.g., nitrous acid and nitrous anhydride that produced from nitrite under acidic gastric conditions) react with amines or amides to form nitrosamines or nitrosamides, and the induction of tumors in animals via endogenous synthesis of N-nitroso compounds in the absence of inhibitors of nitrosation such as vitamin C. Nitrosamines need to be activated metabolically by cytochrome P450 enzymes to electrophilic intermediates to exert a carcinogenic effect. Nitrosation of primary amines produces electrophiles that alkylate nucleophilic sites in DNA. Nitrosation of primary exocyclic amino groups on DNA, followed by deamination, may lead directly to mutations.

아질산 나트륨 준비 용품 및 원자재

원자재

준비 용품


아질산 나트륨 공급 업체

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