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과염소산마그네슘 구조식 이미지
카스 번호:
Magnesium perchlorate
XKM 300;KhKM 300;dehydrite;ANHYDRONE;ANHYDRONE(R);anhydrous magnesium;MAGNESIUM PERCHORATE;MAGNESIUM PERCHLORATE;perchloratedemagnesium;Magnesium diperchlorate
포뮬러 무게:
MOL 파일:

과염소산마그네슘 속성

251 °C
2,21 g/cm3
물리적 상태
Specific Gravity
Magnesium perchlorate is soluble in water, ethanol.
Stable, but moisture sensitive. Oxidizer - contact with combustible material may lead to fire. Incompatible with reducing agents, organic materials, trimethyl phosphate, powdered metals, strong acids, phosphorus.
CAS 데이터베이스
10034-81-8(CAS DataBase Reference)
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 O,Xi
위험 카페고리 넘버 8-36/37/38-14/15
안전지침서 17-26-27-36/37/39-43-7/8
유엔번호(UN No.) UN 1475 5.1/PG 2
WGK 독일 3
RTECS 번호 SC8925000
F 고인화성물질 3-10
위험 등급 5.1
포장분류 II
HS 번호 28299010
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H272 화재를 강렬하게 함; 산화제 산화성 액체;산화성 고체 구분 2
구분 3
P210, P220, P221P280, P370+P378,P501
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
P220 의류 그리고 가연성 물질로부터 멀리하시오.
P221 가연성 물질과 혼합되지 않도록 조치하시오.
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P405 밀봉하여 저장하시오.

과염소산마그네슘 C화학적 특성, 용도, 생산


Magnesium perchlorate is a powerful oxidizing agent, with the formula Mg(ClO4)2. Magnesium perchlorate decomposes at 250°C. The heat of formation is 568.90 kJ/mol. If water is added to magnesium perchlorate, the reaction is highly exothermic and may cause damage to the eyes. Thus, this salt should be added to a sufficient amount of water in order to form a dilute solution.
Mg(ClO4)2·6H2O is composed of white, deliquescent crystals which are soluble in water and alcohol but explosive when in contact with reducing materials. This compound is used as a drying agent for gases. This salt is highly exothermic when added to water and releases steamy HCl gas. It can be dried to form the anhydrate by heating to 250°C under vacuum. The hexahydrate losses two molecules of water at 244°C in air and further decomposes to the dihydrate at 336°C and the anhydrate at 438°C.
The anhydrate has been used as a desiccant to dry gas streams or air samples. However, it is no longer used since perchlorates tend to form explosive compounds with a variety of organic materials as well as other substances.

화학적 성질

Magnesium perchlorate is a white crystalline solid.

화학적 성질

White crystals. Deliquescent; very soluble in water and alcohol.


As a drying agent for gases. The article of commerce may contain an amount of water equivalent to a dihydrate, but even the trihydrate is said to be effective for drying gases.

제조 방법

Magnesium perchlorate can be prepared by reacting magnesium carbonate with a solution of perchloric acid:
MgCO3+ HClO4→Mg(ClO4)2+ CO2
This salt can also be prepared by an electrochemical method in water whereby magnesium perchlorate is formed fr

일반 설명

A white crystalline solid. Strongly absorbs water from air and dissolves in it. Accordingly, used as a regenerable drying agent. May explode under prolonged exposure to heat or fire.

반응 프로필

Magnesium perchlorate is a strong oxidizing agent. Decomposes at 185-190°C [Hawley]. Noncombustible but accelerates the burning of combustible materials. If large quantities are involved in the fire or the combustible material is finely divided an explosion may result. Avoid contact with mineral acids because of the danger of explosion. In the preparation of anhydrous dimethyl sulfoxide by vacuum distillation from anhydrous Magnesium perchlorate, an explosion occurred [MCA Case History 1187, 1966]. Drying ethylene oxide with Magnesium perchlorate resulted in an explosion [NSC Newsletter. Chem. Soc. 1959]. Magnesium perchlorate used in drying hydrocarbons exploded when heated to 220°C [Ind. & Eng. News 17:70. 1939]. As soon as trimethyl phosphite contacted a small amount of Magnesium perchlorate in a flask, there was a flash and an explosion that shattered the flask [Allison 1968].


Dangerous fire and explosion risk in contact with organic materials.


Inhalation of dust irritates mucous membranes. Ingestion of large amounts may be fatal; immediate symptoms include adominal pains, nausea and vomiting, diarrhea, pallor, blueness, shortness of breath, unconsciousness. Contact with eyes or skin causes irritation.


Behavior in Fire: Can form explosive mixture with combustible material or finely powdered metals. Increases the intensity of fires.

Safety Profile

Moderately toxic by intraperitoneal route. Severe slun and eye irritant. A powerful oxidner which has caused many explosions in industry. Potentially explosive reactions with alkenes (above 22OoC), ammonia, aryl hydrazine + ether, dimethyl sulfoxide + heat, ethylene oxide, fluorobutane + water, organic materials, phosphorus, trimethyl phosphate. Reacts to form explosive products with ethanol (forms ethyl perchlorate), cellulose + dinitrogen tetraoxide + oxygen (forms cellulose nitrate). Avoid contact with mineral acids, but$ fluorides, hydrocarbons. A drying agent. When heated to decomposition it emits toxic fumes of MgO and Cl-. See also MAGNESIUM COMPOUNDS and PERCHLORATES

잠재적 노출

Magnesium perchlorate is used as a drying agent for gases and as an oxidizing agent

운송 방법

UN1475 Magnesium perchlorate, Hazard Class: 5.1; Labels: 5.1-Oxidizer.

Purification Methods

Magnesium perchlorate (Anhydrone, Dehydrite) [10034-81-8 (anhydrous)] M 259.2, m >250o, pK2 5

비 호환성

A powerful oxidizer. Violent reaction with reducing agents; alkenes (above 220C), ammonia gas; organic matter; ethylene oxide, finely divided or powdered metals, combustible materials, phosphorus, dimethylsulfoxide, mineral acids; wet argon; hydrazines, alcohols, wet fluorobutane; butyl fluorides; organic materials. Forms explosive material with ethyl alcohol. Incompatible with many materials. Shock or heat may cause magnesium perchlorate to explode.

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