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7681-57-4 - Sodium metabisulfite, 97% - Sodium pyrosulfite - Sodium sulfite - A17351 - Alfa Aesar

A17351 Sodium metabisulfite, 97%

CAS 번호
7681-57-4
동의어
Sodium pyrosulfite
Sodium sulfite

사이즈 가격 ($) 수량 재고 여부
500g 22.60
2500g 43.90
10000g 136.00
장바구니에 추가 대량 견적에 추가 항목 보기

Sodium metabisulfite, 97%

MDL
MFCD00167602
EINECS
231-673-0

화학적 특성

화학식
Na2O5S2
화학 식량
190.10
융점
>300°
밀도
1.480
감도
Air & Moisture Sensitive
용해도
Soluble in water, ethanol and glycerol.

용도

Sodium metabisulfite is used as an active ingredient in campden tablets, as a cleaning agent for potable water reverse osmosis membranes, as a preservative and an antioxidant in food. It also acts as a corrosion inhibitor in oil and gas industry, as a bleaching agent in the production of coconut cream, as the source of sulfur dioxide and in the destruction of cyanide in commercial gold cyanidation processes. It is utilized in the precipitation of gold from auric acid as well as in the waste water treatment to remove hexavaent chromium as trivalent chromium by precipitation after reduction. Further, it is used in photography. In addition, it plays as an oxygen scavenger to eliminate the dissolved oxygen in wastewater and in pipes.

참고

Moisture and air sensitive. Incompatible with strong oxidizing agents and strong acids.

참조 문헌

Tan, T. C.; Cheng, L. H.; Bhat, R.; Rusul, G.; Easa, A. M. Effectiveness of ascorbic acid and sodium metabisulfite as anti-browning agent and antioxidant on green coconut water (Cocos nucifera) subjected to elevated thermal processing. Int. Food Res. J. 2015, 22 (2), 631-637

Zaid, B.; Maddache, N.; Saidi, D.; Souami, N.; Bacha, N.; Ahmed, A. S. Electrochemical evaluation of sodium metabisulfite as environmentally friendly inhibitor for corrosion of aluminum alloy 6061 in a chloride solution. J. Alloys Compd. 2015, 629, 188-196.

GHS 해저드 및 주의 설명서

해저드 설명서 (EU): H302-H318

Harmful if swallowed. Causes serious eye damage.

주의 설명서: P280i-P264-P305+P351+P338-P310a-P301+P312a-P501a

Wear eye/face protection. Wash thoroughly after handling. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Dispose of contents/container in accordance with local/regional/national/international regulations.

기타 참조

Merck
14,8638
통합 관세 코드
2832.10
TSCA(독성물질규제법)"
Yes
RTECS(화학물질 독성 등록)
UX8225000

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