칼륨 메타비아황산염

칼륨 메타비아황산염 속성

칼륨 메타비아황산염 C화학적 특성, 용도, 생산

순도시험

  (1) 용상 : 이 품목 1g을 물 10mL에 녹일 때, 그 탁도는 거의 징명 이하이어야 한다.

  (2) 비소 : 이 품목을 비소시험법에 따라 시험할 때, 그 양은 4.0ppm 이하이어야 한다.

  (3) 납 : 「메타인산나트륨」의 순도시험 (2)에 따라 시험한다(2.0ppm 이하).

  (4) 철 : 순도시험 (3)의 시험용액을 원자흡광광도법 또는 유도결합플라즈마발광광도법에 따라 시험할 때, 그 양은 10ppm 이하이어야 한다.

  (5) 셀레늄 : 이 품목 2.0g을 정밀히 달아 50mL 비이커에 넣고 물 10mL, 염산 5mL를 넣고 끓여서 이산화황을 제거한 액을 시험용액으로 한다. 다른 비이커에 이 품목 1.0g을 정밀히 달아 넣고 셀레늄표준용액 0.5mL를 가한 다음 시험용액과 같은 방법으로 처리하여 대조액으로 한다. 각 비이커에 황산히드라진 2g을 넣고 가열하여 녹인 다음, 네슬러관에 옮기고 물을 가하여 50mL로 한 다음 색을 비교하였을 때, 시험용액의 홍색은 대조액 보다 진하여서는 아니 된다(5ppm 이하).

  (6) 수은 : 이 품목을 수은시험법에 따라 시험할 때, 그 양은 1.0ppm 이하이어야 한다.

  (7) 치오황산염 : 이 품목의 10% 수용액에 황산 또는 염산을 가하여 산성으로 할 때, 그 액은 투명하여야 한다(0.1% 이하).

확인시험

  (1) 이 품목에 묽은염산을 가하면 이산화황을 발생한다.

  (2) 이 품목의 수용액(1→10) 5mL에 묽은초산 1mL를 가하고 요오드․요오드칼륨시액을 적가하면 시액의 색은 없어진다.

  (3) 이 품목은 확인시험법 중 칼륨염의 반응을 나타낸다.

정량법

  이 품목 약 0.2g을 정밀히 달아 미리 0.1N 요오드용액 50mL를 넣어 공전플라스크에 넣어 녹이고 마개를 하여 5분간 방치한 다음 염산(2→3) 2mL를 가한다. 다음에 과잉의 요오드를 0.1N 치오황산나트륨용액으로 적정한다(지시약 : 전분시액).

0.1N 요오드용액 1mL ＝ 5.558mg K₂S₂O₅

화학적 성질

Potassium metabisulfite occurs as white or colorless free-flowing crystals, crystalline powder, or granules, usually with an odor of sulfur dioxide.

용도

Potassium Metabisulfite is a chemical preservative and antioxi- dant obtained as white or colorless crystals, powder, or granules. it is soluble in water and insoluble in alcohol. the sulfite salt yields sulfurous acid at a low ph. it is used as a food preservative.

일반 설명

Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods.

Pharmaceutical Applications

Potassium metabisulfite is used in applications similar to those of sodium metabisulfite in pharmaceuticals, and in the food, brewing, and wine making industries. It is used as an antioxidant, antimicrobial preservative and sterilizing agent.

색상 색인 번호

Potassium metabisulfite is an antioxidant used as an antifermentative agent in breweries and wineries, as a preservative of fruits and vegetables, and to bleach straw. Reactions to both sodium and potassium metabisulfite are expected.

Safety Profile

Experimental reproductive effects. A very irritating material. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of SOx and K2SO3. See also SULFITES.

Safety

Potassium metabisulfite is used in a variety of foods and pharmaceutical preparations, including oral, otic, rectal, and parenteral preparations. Potassium metabisulfite is considered a very irritating material, and may cause dermatitis on exposed skin.
Hypersensitivity reactions to potassium metabisulfite and other sulfites, mainly used as preservatives in food products, have been reported. Reactions include bronchospasm and anaphylaxis; some deaths have also been reported, especially in those with a history of asthma or atopic allergy.These reactions have led to restrictions by the FDA on the use of sulfites in food applications. However, this restriction has not been extended to their use in pharmaceutical applications. Indeed, epinephrine (adrenaline) injections used to treat severe allergic reactions may contain sulfites.
The WHO has set an acceptable daily intake of sulfites, as SO₂, at up to 0.35 mg/kg body-weight.

저장

Potassium metabisulfite should be stored in a cool, dark place. When stored at a maximum temperature of 25°C and maximum relative humidity of 45%, the shelf-life is 6 months. Potassium metabisulfite decomposes at temperatures above 150°C. In the air, it oxidizes to the sulfate, more readily in the presence of moisture.
In aqueous solution, potassium metabisulfite forms potassium bisulfite (KHSO₃) which exerts a strong reducing effect.

비 호환성

Potassium metabisulfite is incompatible with strong acids, water, and most common metals. It reacts with nitrites and sodium nitrate at room temperature, which occasionally results in the formation of flame. The reaction may be explosive if water is present. Potassium metabisulfite liberates SO₂ with acids.
Sulfites, including potassium metabisulfite, can react with various pharmaceutical compounds including sympathomimetics such as epinephrine (adrenaline),chloramphenicol,cisplatin, and amino acids,which can result in their pharmacological inactivation. Sulfites are also reported to react with phenylmercuric nitrate,and may adsorb onto rubber closures.

Regulatory Status

GRAS listed. Accepted in Europe for use as a food additive in certain applications. Included in the FDA Inactive Ingredients Database (IM and IV injection; otic and rectal solutions and suspensions). Included in the Canadian List of Acceptable Nonmedicinal Ingredients.

칼륨 메타비아황산염 준비 용품 및 원자재

원자재

준비 용품

칼륨 메타비아황산염 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15371	58
Shanghai Zheyan Biotech Co., Ltd.	18017610038	zheyansh@163.com	CHINA	3620	58
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Chongqing Chemdad Co., Ltd	+86-023-61398051 +8613650506873	sales@chemdad.com	China	39916	58
Shaanxi Dideu Medichem Co. Ltd	+86-029-81138252 +86-18789408387	1057@dideu.com	China	3783	58
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	12431	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	5993	58
SIMAGCHEM CORP	+86-13806087780	sale@simagchem.com	China	17367	58
Hubei Ipure Biology Co., Ltd	+8613367258412	ada@ipurechemical.com	China	10326	58

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