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황산칼륨

황산칼륨
황산칼륨 구조식 이미지
카스 번호:
7778-80-5
한글명:
황산칼륨
동의어(한글):
디칼륨황산염;살폴리크레스툼;아르카늄두플리카튬;자연아르카니트;칼륨황산염;칼륨황산염(K2(SO4));칼륨황산염(K2SO4);칼륨황산염용액1M;타르타루스비트리올라투스;황산디칼륨염;황산칼륨;황산칼륨염;황산칼륨;포타슘설페이트
상품명:
Potassium sulfate
동의어(영문):
sop;K2SO4;231-915-5;WATER R PHE;Kaliumsulfat;Kalii sulfas;Glazier's salt;KJELTABS IB 61;Salt of leMery;salpolychrestum
CBNumber:
CB9854321
분자식:
K2O4S
포뮬러 무게:
174.2592
MOL 파일:
7778-80-5.mol

황산칼륨 속성

녹는점
1067°C
끓는 점
1689°C
밀도
2.66
인화점
1689°C
저장 조건
Store at RT.
용해도
H2O: 0.5 M at 20 °C, clear, colorless
물리적 상태
Very Fine Crystals or Powder
색상
White
Specific Gravity
2.662
냄새
Odorless
수소이온지수(pH)
5.5-7.5 (25℃, 0.5M in H2O)
pH 범위
~7
수용성
110 g/L (20 ºC)
최대 파장(λmax)
λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01
Merck
14,7674
안정성
Stable.
InChIKey
OTYBMLCTZGSZBG-UHFFFAOYSA-L
CAS 데이터베이스
7778-80-5(CAS DataBase Reference)
NIST
Potassium sulfate(7778-80-5)
EPA
Potassium sulfate (7778-80-5)
안전
  • 위험 및 안전 성명
안전지침서 22-24/25
WGK 독일 1
RTECS 번호 TT5900000
TSCA Yes
HS 번호 31043000
유해 물질 데이터 7778-80-5(Hazardous Substances Data)
독성 LD50 orally in Rabbit: 6600 mg/kg
기존화학 물질 KE-29200
그림문자(GHS):
신호 어:
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
예방조치문구:
NFPA 704
1
1 0

황산칼륨 MSDS


Potassium sulfate

황산칼륨 C화학적 특성, 용도, 생산

물성

녹으며, 알코올․아세톤․이황화탄소 등에는 녹지 않는다. 칼륨비료로 사용되고 냄새가 거의 없어 각종 비료와 배합시킬 수 있다. 비료 효과가 빨리 나타나며, 황산암모늄․과산화인산 등과 함께 기본적인 비료이다. 또, 비료 외의 용도로 칼륨백반․브롬화칼륨의 제조원료나 의약품에 이용된다.

개요

천연적으로는 아르카나이트로 산출되고, 공업적으로는 염화칼륨 KCl을 진한황산 HSO과 함께 가열하여 얻는다. 칼륨비료로 사용되는 외에, 거의 냄새가 없어 각종비료와 배합시킬 수 있다. 비효는 속효성이며, 황산암모늄·과인산 등과 함께 기비가 된다. 또 칼륨백반·브롬화칼륨의 제조원료나 의약품에 이용된다.

용도

공업적으로는 카이나이트 등에 염화칼륨을 가한 수용액에서 복분해하여 얻는다. 물에서 재결정시켜 정제한다. 칼륨비료로 사용되고 냄새가 거의 없어 각종 비료와 배합시킬 수 있다. 비료 효과가 빨 리 나타나며, 황산암모늄 ·과산화인산 등과 함께 기본적인 비료이다. 또, 비료 외의 용도로 칼륨백반 ·브롬화칼륨의 제조원료나 의약품 에 이용된다.

개요

Potassium sulfate (K2SO4) is a kind of chemical compounds that is commonly used in agriculture. The dominant application of potassium sulfate is as a fertilizer, which is commonly applied to offer both potassium and sulfur, thus improving the quality and yield of crops growing in soils that lack an adequate supply of this essential elements. Besides, the crude potassium sulfate is sometimes employed in the production of glass. It also has applications in other industries, which is used as a flash reducer in artillery propellant charges and as an alternative blast media similar to soda in the process of soda blasting.
potassium sulfate powder
potassium sulfate powder

화학적 성질

Potassium sulfate,K2804, also known as salt of Lemery and arcanite, is a colorless crystalline solid that melts at 1072°C(1960 OF). It is soluble in water,but insoluble in alcohol. Potassium sulfate is used in manufacturing glass, aluminum, fertilizers, and in medicine.

화학적 성질

Potassium sulfate, sulfate of potash, K2SO4, white solid, soluble. Common constituent of potassium salt minerals.

물리적 성질

Colorless or white crystals or white granules or powder; rhombohedral structure; bitter taste; density 2.66 g/cm3; melts at 1,069°C; vaporizes at 1,689°C; moderately soluble in water, 12 g/100mL at 25°C and 24g/100mL at 100°C; slightly soluble in glycerol; insoluble in alcohol, acetone, and carbon disulfide.

출처

Potassium and sodium sulfates and their double sulfates with calcium and magnesium occur naturally in various salt lakes. Potassium sulfate also occurs in certain volcanic lava. Its double salt with magnesium occurs in nature, as the mineral langbeinite.
Potassium sulfate is used in fertilizers as a source of potassium and sulfur, both of which are essential elements for plant growth. Either in sim-ple form or as a double salt with magnesium sulfate, potassium sulfate is one of the most widely consumed potassium salts in agricultural applications. It is preferred over potassium chloride for certain types of crops; such as, tobac-co, citrus, and other chloride-sensitive crops. Some other applications include making gypsum cements; to make potassium alum; in the analysis of Kjeldahl nitrogen; and in medicine.

용도

Potassium Sulfate is a flavoring agent that occurs naturally, consisting of colorless or white crystals or crystalline powder having a bitter, saline taste. it is prepared by the neutralization of sulfuric acid with potassium hydroxide or potassium carbonate.

용도

Technical grades are used in fertilizers for manufacture of potassium alum, potassium carbonate and glass; the reagent grade is used in the Kjeldahl determination of nitrogen.

용도

potassium sulfate is a reagent in cosmetics. Potassium sulfate is an inorganic salt with a primary function as a viscosity-increasing agent.

정의

A white crystallinepowder, K2SO4, soluble inwater and insoluble in ethanol;rhombic or hexagonal; r.d. 2.66; m.p.1069°C. It occurs naturally assch?nite (Strassfurt deposits) and inlake brines, from which it is separatedby fractional crystallization. Ithas also been produced by the Hargreavesprocess, which involves theoxidation of potassium chloride withsulphuric acid. In the laboratory itmay be obtained by the reaction ofeither potassium hydroxide or potassiumcarbonate with sulphuric acid.Potassium sulphate is used in cements,in glass manufacture, as afood additive, and as a fertilizer(source of K+) for chloride-sensitiveplants, such as tobacco and citrus.

생산 방법

Potassium sulfate is produced by various methods, selection of process depending on availability and cost of raw materials.
The salt may be obtained from its naturally occurring mineral, langbeinite,K2SO4?2MgSO4. The ore first is crushed and washed with water to separate sodium chloride. After that, magnetite is separated from the washed langbei-nite by magnetic separation. After the separation of these two major impuri-ties, the purified double salt is treated with an aqueous solution of potassium chloride to obtain potassium sulfate:
K2SO4?2MgSO4 + 4KCl →3K2SO4+ 2MgCl2
The solution is filtered to remove insoluble residues and the products are separated from their aqueous mixture by crystallization.
Potassium sulfate also is produced from the mineral kieserite, MgSO4?H2O by treatment with potassium chloride. The intermediate double salt obtained reacts further with potassium chloride to form potassium sulfate:MgSO4?H2O + 2KCl + 4H2O →K2SO4?MgSO4?6H2O + MgCl2
K2SO4?MgSO4?6H2O + 2KCl →2K2SO4+ MgCl2
Potassium sulfate is separated from the more soluble magnesium chloride by crystallization.
Also, potassium sulfate can be made by two other processes in which no naturally occurring mineral is employed. In the Mannheim process, the salt is produced by action of sulfuric acid on potassium chloride:2KCl + H2SO4→K2SO4+ 2HCl
In Hargreaves process, which is a slight variation of the Mannheim method, potassium sulfate is made by heating a mixture of potassium chlo-ride, sulfur dioxide, air and water:4KCl + 2SO2+ 2H2O + o2→2K2SO4+ 4HCl.

Safety Profile

Moderately toxic to humans by ingestion. Moderately toxic experimentally by subcutaneous route. Swallowing large doses causes severe gastrointestinal tract effects. When heated to decomposition it emits toxic fumes of K2O and SOx. See also SULFATES.

Purification Methods

Potassium sulfate [7778-80-5] M 174.3, m 1069o, d 4 2.67 It crystallised from distilled water (4mL/g at 20o; 8mL/g at 100o) between 100o and 0o.

참고 문헌

https://en.wikipedia.org/wiki/Potassium_sulfate
http://www.cropnutrition.com/potassium-sulfate
http://study.com/academy/lesson/what-is-potassium-sulfate-structure-uses-formula.html

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