페로사이안화칼륨

페로사이안화칼륨 속성

페로사이안화칼륨 MSDS

Potassium hexacyanoferrate(II) trihyrate

페로사이안화칼륨 C화학적 특성, 용도, 생산

순도시험

  (1) 시안화물 : 황산동 10mg에 물 8mL 및 암모니아시액 ２mL를 가하여 녹이고 이 액으로 여과지를 적신다음 황화수소를 가한다. 갈색으로 변한 여과지에 이 품목 수용액(1→100) 1방울을 떨어뜨릴때 백색의 고리가 나타나서는 아니 된다.

  (2) 페리시안화물 : 이 품목 10mg을 물 10mL에 녹인 다음 이 액 1방울에 1% 질산납용액 1방울을 가하고 벤지딘으로 포화시킨 2N 초산 몇 방울을 떨어뜨릴 때 청색의 침전 또는 청색을 나타내서는 아니 된다.

  (3) 납 : 「메타인산나트륨」의 순도시험 (2)에 따라 시험한다(5.0ppm 이하).

  (4) 염화물 : 이 품목 0.11g을 취하여 염화물시험법에 따라 시험할 때, 그 양은 0.01N 염산 0.6mL에 대응하는 양 이하이어야 한다(0.2% 이하).

  (5) 황산염 : 이 품목 0.2g을 취하여 황산염시험법에 따라 시험할 때, 그 양은 0.01N 황산 0.4mL에 대응하는 양 이하이어야 한다(0.1% 이하).

확인시험

  (1) 이 품목의 수용액(1→100) 10mL에 염화제이철시액 1mL를 가하면 암청색의 침전을 나타낸다.

  (2) 이 품목은 확인시험법 중 칼륨염의 반응을 나타낸다.

정량법

  이 품목 약 1.0g을 정밀히 달아 물 200mL에 녹이고 황산 10mL를 가한 다음 0.02N 과망간산칼륨용액으로 홍색이 30초간 지속될 때까지 적정한다.

0.02N 과망간산칼륨용액 1mL = 42.24mg K₄Fe(CN)₆•３H₂O

화학적 성질

Lemon yellow monoclinic columnar crystal or powder, sometimes with cubic metamorphosis. Soluble in water, insoluble in ethanol, ether, methyl acetate and liquid ammonia.

용도

Potassium ferrocyanide is a yellow crystal also known as yellow prussiate of potash. It was made by stirring hot potassium carbonate with wool or horn clippings with an iron rod. It is soluble in water 1:4 but not in alcohol. Potassium ferrocyanide was used as a developer for some iron processes and as an additive for alkaline pyro developers.

주요 응용

Potassium hexacyanoferrate(II) trihydrate may be used in the following processes:
Preparation of Carrez I solution.
Milk sample preparation for gold nanoparticles (AuNPs) based colorimetric detection of melamine.
Preparation of ferrocyanide/ferricyanide reaction, a redox pair solution for electrochemical testing.

제조 방법

Potassium hexacyanoferrate(II), K4Fe(CN)6·3H20, is obtained commercially from gasworks spent oxide (which contains Prussian blue) by treatment with lime and subsequent treatment of the solution with a soluble potassium salt ; the less soluble potassium hexacyanoferrate(II) can be crystallized from this mixture. In the laboratory it is readily prepared by treating aqueous iron(II) sulphate with an excess of potassium cyanide ; the initially precipitated iron(II) cyanide dissolves upon boiling in the excess of potassium cyanide solution and the ferrocyanide crystallizes on cooling.

일반 설명

Potassium hexacyanoferrate(II) trihydrate, commonly known as potassium ferrocyanide, is a commonly used anticaking agent. Its cytotoxic and genotoxic effect has been evaluated. The growth of chemical garden in aqueous potassium hexacyanoferrate solution droplets on a superhydrophobic surface has been reported. The inhibition efficiency of potassium ferrocyanide in phosphoric acid solution against the corrosion of mild steel has been investigated.

Purification Methods

The anhydrous salt is prepared by drying at 110o over P2O5 in a vacuum desiccator. To obtain the trihydrate, it is necessary to equilibrate the salt in a desiccator over a saturated aqueous solution of sucrose and NaCl. It can also be precipitated from a saturated solution at 0o by adding an equal volume of cold 95% EtOH, setting aside for several hours, then centrifuge and wash with cold 95% EtOH. It is finally sucked air dry with water-pump vacuum. The anhydrous salt is obtained by drying the hydrate in a platinum boat at 90o in a slow stream of N2 [Loftfield & Swift J Am Chem Soc 60 3083 1938].

페로사이안화칼륨 준비 용품 및 원자재

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페로사이안화칼륨 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Chongqing Chuandong Chemical (Group) Co. Ltd.	+86-13637972665 +86-13637972665	wxc@cd1958.com	China	81	58
Hebei Guanlang Biotechnology Co,.LTD	+8619930503252	daisy@crovellbio.com	China	5964	58
Shandong Juchuang Chemical Co., LTD	+undefined15030412209	admin@juchuangchem.com	China	387	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1807	55
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +86-18949832763	info@tnjchem.com	China	2989	55
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
Hebei Guanlang Biotechnology Co., Ltd.	+86-19930503282	alice@crovellbio.com	China	8823	58

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