ChemicalBook
Chinese English Japanese Germany Korea

아황산나트륨

아황산나트륨
아황산나트륨 구조식 이미지
카스 번호:
7757-83-7
한글명:
아황산나트륨
동의어(한글):
나트륨아황산염;나트륨아황산염,무수물;디나트륨아황산염;아황산,나트륨염(1:2);아황산,디나트륨염;무수물나트륨아황산염;아황산나트륨;무수아황산나트륨;소듐설파이트;아황산나트륨(SODIUMSULFITE)
상품명:
Sodium sulfite
동의어(영문):
s-wat;sulftech;SULPHITES;natriumsulfit;natriumsulfid;natriisulphis;Sodium sulfite;Natriumsulfit8;sulfitedesodium;disodiumsulfite
CBNumber:
CB4111698
분자식:
Na2O3S
포뮬러 무게:
126.04
MOL 파일:
7757-83-7.mol

아황산나트륨 속성

녹는점
500 °C
밀도
2.63
굴절률
1,484
저장 조건
Store at +5°C to +30°C.
용해도
H2O: 1 M at 20 °C, clear, colorless
물리적 상태
Solid
Specific Gravity
2.633
색상
White to slightly yellow
수소이온지수(pH)
9.0-10.5 (25℃, 1M in H2O)
냄새
Odorless
pH 범위
9.0 - 10.5 at 126 g/l at 25 °C
수용성
23 g/100 mL (20 ºC)
감도
Hygroscopic
Merck
14,8682
안정성
Stable. Incompatible with strong acids. Moisture and air sensitive.
CAS 데이터베이스
7757-83-7(CAS DataBase Reference)
NIST
sodium sulfite(7757-83-7)
EPA
Sodium sulfite (7757-83-7)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xn
위험 카페고리 넘버 31-36/37/38-22-40-36/38
안전지침서 24/25-36-26-22
WGK 독일 1
RTECS 번호 WE2150000
F 고인화성물질 3-10
TSCA Yes
HS 번호 28321000
유해 물질 데이터 7757-83-7(Hazardous Substances Data)
독성 LD50 i.v. in mice: 175 mg/kg, Hoppe, Goble, J. Pharmacol. Exp. Ther. 101, 101 (1951)
기존화학 물질 KE-31612
그림문자(GHS):
신호 어:
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H303 삼키면 유해할 수 있음 급성 독성 물질 - 경구 구분 5 P312
예방조치문구:
NFPA 704
0
1 1

아황산나트륨 MSDS


Sodium sulfite

아황산나트륨 C화학적 특성, 용도, 생산

물성

무색 결정으로, 비중 1.59이다. 37 ℃ 이상에서는 무수염이 된다. 무수염은 무색의 결정 또는 분말 이며, 가열에 의해 분해된다. 공기 중에서는 서서히 산화되나, 7수화염보다는 안정하다.

존재

탄산나트륨 수용 액에 이산화황(아황산가스)을 통과시켜 아황산수소나트륨용액을 만들고, 이것을 당량(當量)의 탄산 나트륨으로 중화시켜 37 ℃ 이하에서 증발 ·농축하면 얻는다. 또, 수산화나트륨의 진한 용액을 냉 각시키면서, 이것에 이산화황을 통과시켜 중화해도 생긴다.

용도

비스코오스 ·염료의 제조, 티오황산나트륨의 제조원료, 환원제 ·사진현상액 ·표백제 ·방부제 에 사용되며, 고무 공업 ·플라스틱 공업 등에서도 사용된다.

화학적 성질

Sodium sulfite,Na2S03, is a white,water-soluble, crystalline solid with a sulfurous, salty taste. It decomposes when heated. Sodium sulfite is used as a source of sulfite,as a chemical intermediate and food preservative, in medicine and paper manufacturing, in photographic developing, and as a bleaching agent in the textile industry. Most boiler operators use sodium sulfite for chemicals cavenging of oxygen in the feedwater. Because it decomposes into acidic gases at the high temperatures that accompany high pressures, sodium sulfite should not be used for this purpose at pressures above 122atm (12.4MPa,or 1.8 ksi).

화학적 성질

Sodium sulfite is a white crystalline solid

화학적 성질

Sodium sulfite occurs as an odorless white powder or hexagonal prisms. Note that the commercially available sodium sulfite is often presented as a white to tan- or pink-colored powder that would not conform to the pharmacopeial specification.

용도

These white crystals were prepared by passing sulfurous gas over moist sodium carbonate. Sodium sulfite is soluble in water but less so in alcohol. It was used as a preservative for alkaline developers and as a hypo clearing agent in photographic printing.

용도

Paper industry (semichemical pulp), reduc- ing agent (dyes), water treatment, photographic developer, food preservative and antioxidant, tex- tile bleaching (antichlor).

용도

sodium sulfite has anti-septic, preservative, and anti-oxidant properties. Sodium sulfite is also a topical anti-fungal.

정의

ChEBI: An inorganic sodium salt having sulfite as the counterion.

생산 방법

Sodium bisulfite is prepared by reacting sulfur dioxide gas with sodium hydroxide solution. The solid material is obtained by evaporation of water. Further neutralization with sodium hydroxide while keeping the temperature above 33.6°C leads to crystallization of the anhydrous sodium sulfite (below this temperature the heptahydrate form is obtained).

정의

sodium sulphite: A white solid,Na2SO3, existing in an anhydrousform (r.d. 2.63) and as a heptahydrate(r.d. 1.59). Sodium sulphite is solublein water and because it is readily oxidizedit is widely used as a convenientreducing agent. It is preparedby reacting sulphur dioxide with eithersodium carbonate or sodium hydroxide.Dilute mineral acids reversethis process and release sulphur dioxide.Sodium sulphite is used as ableaching agent in textiles and inpaper manufacture. Its use as an antioxidantin some canned foodstuffsgives rise to a slightly sulphuroussmell immediately on opening, butits use is prohibited in meats or foodsthat contain vitamin B1. Sodium sulphitesolutions are occasionally usedas biological preservatives.

일반 설명

White odorless powder. Density 2.633 g / cm3. Moderately toxic. Sinks in water and dissolves slowly. Also transported as a heptahydrate Na2SO3.7H2O.

공기와 물의 반응

Soluble in water. Reacts with hot water, steam or acids to produce corrosive material.

반응 프로필

Sodium sulfite is a reducing agent, particularly under basic conditions. Reacts with oxidizing agents such as peroxides, epoxides, oxoacids. Emits toxic fumes of sodium oxide and oxides of sulfur if heated to decomposition [Lewis, 3rd ed., 1993, p. 1174].

위험도

Use prohibited in meats and other sources of Vitamin B 1

건강위험

When ingested, solutions cause gastric irritation by the liberation of sulfurous acid. Because of rapid oxidation to sulfate, sulfites are well tolerated until large doses are reached; then violent colic and diarrhea, circulatory disturbances, central nervous depression, and death can occur.

화재위험

Literature sources indicate that Sodium sulfite is noncombustible.

Pharmaceutical Applications

Sodium sulfite is used as an antioxidant in applications similar to those for sodium metabisulfite. It is also an effective antimicrobial preservative, particularly against fungi at low pH (0.1% w/v of sodium sulfite is used). Sodium sulfite is used in cosmetics, food products, and pharmaceutical applications such as parenteral formulations, inhalations, oral formulations, and topical preparations.

색상 색인 번호

Sodium sulfite is mainly used in photographic developers, for fixing prints, bleaching textile fibers, as a reducer in manufacturing dyes, as a remover of Cl in bleached textiles and paper, and as a preservative in the food industry for meat, egg yolks, and so on.

Safety Profile

Poison by intravenous and subcutaneous routes. Moderately toxic by ingestion and intraperitoneal routes. Human mutation data reported. When heated to decomposition it emits very toxic fumes of Na2O and SOx. A reducing agent. See also SULFITES.

Safety

Sodium sulfite is widely used in food and pharmaceutical applications as an antioxidant. It is generally regarded as relatively nontoxic and nonirritant when used as an excipient. However, contact dermatitis and hypersensitivity reactions have been reported. The acceptable daily intake for sodium sulfite has been set at up to 350 mg/kg body-weight daily.
LD50 (mouse, IP): 0.950 g/kg
LD50 (mouse, IV): 0.130 g/kg
LD50 (mouse, oral): 0.820 g/kg
LD50 (rabbit, IV): 0.065 g/kg
LD50 (rabbit, oral): 1.181 g/kg
LD50 (rat, IV): 0.115 g/kg

잠재적 노출

Sodium sulfite is used as a reducing agent; in boiler water treatment; food applications; in photographic developers and fixers; in bleaching of wool, paper, textiles, straw and silk; manufacture of dyes; dechlorination; preservation of meat, fruit and egg products; silvering of glass.

환경귀착

Because sodium sulfite is a solid powder that is generally sold as a ‘food grade’ substance, there is very little information available on the environmental fate of sodium sulfite. It has a molecular weight of 126.04 g mol-1. At 20°C, the solubility in water is 250 000 mg l-1, and as it is an inorganic salt the vapor is negligible (USEPA, 2011). The log octanol/water partition coefficient is estimated to be 7.78.
If released into water or soil, sodium sulfite would most likely be oxidized to sulfate, which would then be available for use by bacteria or plants as a nutrient.
The US Environmental Protection Agency (EPA) EPI Suite computer program (USEPA, 2011) estimates both a bioconcentration factor and a bioaccumulation factor of 0.89. These factors are less than one, meaning that bioconcentration and/or bioaccumulation of sodium sulfite would be virtually negligible and therefore would not cause any adverse effects to fish and wildlife.

저장

Sodium sulfite should be stored in a well-closed container in a cool, dry, place. In solution, sodium sulfite is slowly oxidized to sulfate by dissolved oxygen; strong acids lead to formation of sulfurous acid/ sulfur dioxide. On heating, sodium sulfite decomposes liberating sulfur oxides.

운송 방법

UN3260 Corrosive solid, acidic, inorganic, n.o.s., Hazard class: 8; Labels: 8-Corrosive material.

Purification Methods

Crystallise the sulfite from warm water (0.5mL/g) by cooling to 0o. Also purify it by repeated crystallisation from deoxygenated water inside a glove-box, and finally drying it under vacuum. [Rhee & Dasgupta J Phys Chem 89 1799 1985.]

Toxicity evaluation

The exact mechanism of toxicity has not been elucidated, although there is a lot of information on how sulfur-based compounds are detoxified by the liver. Sodium sulfite is a mild reducing agent that would most likely cause burning or irritation at the site of exposure or application by altering oxidation–reduction potential and pH.
Sulfites are used widely as antioxidants to keep foods from prematurely spoiling and to keep them looking ‘fresh’ by preventing oxidation and subsequent ‘browning.’ Many people, however, are ‘sulfite sensitive.’ After ingestion of food or beverages containing sulfite, these people may have allergictype reactions such as asthmatic wheezing, hypotension, tingling sensations, and flushing of the skin. The mechanism is unclear but probably has to do with an individual-specific chemical stimulation of the immune system, which in turn releases small amounts of vasoactive substances.

비 호환성

A strong reducing agent. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases. Reacts with strong acids producing toxic sulfur dioxide.

비 호환성

Sodium sulfite is incompatible with acids, oxidizing agents, many proteins, and vitamin B1.

Regulatory Status

GRAS listed. Accepted for use as a food additive in Europe. Included in FDA Inactive Ingredients Database (epidural, IM, IV, and SC injections; inhalation solution; ophthalmic solutions; oral syrups and suspensions; otic solutions; topical creams and emulsions). Included in nonparenteral medicines licensed in the UK.

아황산나트륨 준비 용품 및 원자재

원자재

준비 용품


아황산나트륨 공급 업체

글로벌( 530)공급 업체
공급자 전화 팩스 이메일 국가 제품 수 이점
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 21032 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8882 55
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 ivan@atkchemical.com CHINA 26734 60
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 3001 55
Shanxi Naipu Import and Export Co.,Ltd
+8613734021967
kaia@neputrading.com CHINA 1011 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29961 58
Zhejiang ZETian Fine Chemicals Co. LTD
18957127338
stella@zetchem.com CHINA 2007 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293
+86 0531-67809011 sales@sdzschem.com CHINA 2858 58
Shenzhen Nexconn Pharmatechs Ltd
15013857715
admin@nexconn.com CHINA 3004 58

아황산나트륨 관련 검색:

Copyright 2019 © ChemicalBook. All rights reserved