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オキサロニトリル

オキサロニトリル 化学構造式
460-19-5
CAS番号.
460-19-5
化学名:
オキサロニトリル
别名:
シアノーゲン;ジシアノーゲン;オキサロニトリル;しゅう酸ジニトリル;カーボンニトリド(C2N2);エタンジニトリル;ジシアン;1,4-ジアザ-1,3-ブタジイン;シアノーゲン(C2N2);シアン
英語化学名:
CYANOGEN
英語别名:
dicyan;CYANOGEN;cyanogene;dicyanogene;OXALONITRILE;Cyanogen (C2N2);Carbon nitride (C2N2);oxalonitrile cyanogen
CBNumber:
CB0809207
化学式:
C2N2
分子量:
52.03
MOL File:
460-19-5.mol

オキサロニトリル 物理性質

融点 :
-27.9° (also reported as -34.4°)
沸点 :
bp -21.17°
比重(密度) :
d4-21.17 0.9537
屈折率 :
1.3780 (estimate)
外見 :
colorless gas
水溶解度 :
1.1–1.3g/100g H2O; 26 g/100g alcohol; 5g/100g ether [CIC73]
暴露限界値:
TLV-TWA 20 mg/m3 (10 ppm) (ACGIH).
CAS データベース:
460-19-5
EPAの化学物質情報:
Cyanogen (460-19-5)

安全性情報

主な危険性  F,T,N
Rフレーズ  11-23-50/53
Sフレーズ  23-45-60-61
RIDADR  1026
国連危険物分類  2.3
有毒物質データの 460-19-5(Hazardous Substances Data)

オキサロニトリル 価格

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入

オキサロニトリル 化学特性,用途語,生産方法

解説

ethanedinitrile.(CN)2(52.04).空気中で炭素電極を用いてアーク放電を行うと生成する.天体中に遊離基CNとして存在することが確認され,注目されている.シュウ酸アミドを五酸化二リンで脱水するか,水銀,金のシアン化物を強熱分解してつくられる.簡単にはシアン化水銀(Ⅱ)と塩化水銀(Ⅱ)の混合物を熱するか,また,硫酸銅の温濃厚水溶液に,濃厚なシアン化アルカリ水溶液を加えると生じる.無色の刺激臭の気体.還元すれば,エチレンジアミンを生じること,双極子モーメントが0であることなどからN≡C-C≡Nの直線分子と考えられる.空気を1としたときの密度1.81 g cm-3.融点-27.9 ℃,沸点-21.2 ℃.20 ℃ における溶解度450 mL/100 g(水),2300 mL/100 g(エタノール),500 mL/100 g(エーテル).水と反応してシアン化水素とシアン酸,水酸化アルカリと反応してシアン化アルカリとシアン酸アルカリを生じる.化学的にハロゲン元素と類似した行動をとるハロゲノイドの一つ.水溶液は長時間放置すると,条件によってシュウ酸アミド,シアン酸アンモニウム,尿素などを生じる.加熱すると1000 ℃ までは安定で,1500 ℃ で一部CN基に解離し,1500 ℃ 以上では炭素と窒素に分解する.300 ℃ で長時間加熱すると水に不溶な重合体パラシアン (CN)x を生じる.光化学的にも重合する.重合体は800 ℃ で (CN)2 に分解する.空気中で緑の赤い炎をあげて燃える.この炎は非常に高温で炎光分析に用いられる.猛毒.[CAS 2074-87-5]
森北出版「化学辞典(第2版)

用途

試薬

化学的特性

Cyanogen is a colorless, flammable, com- pressed liquefied gas at room temperature. At deadly levels only, it has a pungent, almond-like odor.

使用

Cyanogen is used as a fumigant, as a fuel gas for welding and cutting metals, as a propellant, and in organic synthesis. It occurs in blast-furnace gases. It is also known to occur at varying concentrations in cassava flour consumed in northern Mozambique.

使用

Organic synthesis; fuel gas for welding and cutting heat-resistant metals; rocket and missile propellant; fumigant

調製方法

Cyanogen is prepared (1) by reaction of sodium cyanide and copper sulfate solutions, whereby one half the cyanogen is evolved as cyanogen gas and one half remains as cuprous cyanide. From the filtered cuprous cyanide, by treatment with ferric chloride solution, cyanogen is evolved with accompanying formation of ferrous chloride, (2) by heating ammonium oxalate COONH4·COONH4 with phosphorus pentoxide, water being abstracted. Small amounts of cyanogen are present in blast furnace gas and raw coal gas.

調製方法

Cyanogen can be prepared by slowly dropping potassium cyanide solution into copper sulfate solution or by heating mercury cyanide.

定義

A toxic flammable gas prepared by heating mercury cyanide.

定義

cyanogen: A colourless gas, (CN)2,with a pungent odour; soluble inwater, ethanol, and ether; d. 2.335g dm–3; m.p. –27.9°C; b.p. –20.7°C.The compound is very toxic. It maybe prepared in the laboratory byheating mercury(II) cyanide; industriallyit is made by gas-phase oxidationof hydrogen cyanide using air over asilver catalyst, chlorine over activatedsilicon(IV) oxide, or nitrogendioxide over a copper(II) salt.Cyanogen is an important intermediatein the preparation of various fertilizersand is also used as a stabilizerin making nitrocellulose. It is an exampleof a pseudohalogen.

定義

ChEBI: A dinitrile that is ethane substituted by two cyano groups.

反応性

Cyanogen (CN)2 is a colorless gas of marked characteristic odor, very poisonous, density 1.8 (air equal to 1.0), soluble. When passed into water at 0 °C, cyanogen forms hydrocyanic acid plus cyanic acid, but at ordinary temperatures the reaction is complex. With sodium hydroxide solution, there is formed with cyanogen sodium cyanide plus sodium cyanate, with dilute sulfuric acid oxamic acid COOH·CONH2, oxalic acid COOH·COOH. By reaction with tin and hydrochloric acid, cyanogen is reduced to ethylene diamine CH2·NH2·CH2·NH2. Cyanogen reacts with hydrogen to form hydrocyanic acid, and with metals, e.g., zinc, copper, lead, mercury, silver, to form cyanides.
Cyanogen, (1) when burned in air produces a violet flame forming carbon dioxide and nitrogen in the outer part and carbon monoxide and nitrogen in the inner part, (2) when exploded with oxygen produces carbon dioxide or carbon monoxide and nitrogen depending upon the ratio of oxygen to cyanogen (2 volumes oxygen plus 1 volume cyanogen yields 2 volumes carbon dioxide plus 1 volume nitrogen; 1 volume oxygen plus 1 volume cyanogen yields 2 volumes carbon monoxide plus 1 volume nitrogen). The flame spectrum contains characteristic bands in the blue and violet. By means of the electric spark, the electric arc or a red hot tube, cyanogen is decomposed into carbon plus nitrogen. When heated at ordinary pressure at about 300 °C, or under 300 atmospheres pressure at about 225°, cyanogen is converted into paracyanogen, a brown powder, also formed when mercuric cyanide is heated.

一般的な説明

A colorless gas with an odor of almonds. Freezes at -28°C and boils at -20.7°C. Shipped as a liquid confined under its vapor pressure. The gas is heavier than air and a flame can travel back to the source of leak very easily. Prolonged exposure to fire or intense heat may cause the containers to violently rupture and rocket. Used to make other chemicals, as a fumigant, and as a rocket propellant.

空気と水の反応

Highly flammable. Soluble in water and slowly decomposed by water to oxalic acid and ammonia.

反応プロフィール

Colorless, flammable, highly toxic gas. CYANOGEN can react explosively with strong oxidants (dichlorine oxide, fluorene, oxygen, ozone). When heated to decomposition or on contact with acids, acid fumes, water or steam CYANOGEN will react to produce deadly hydrogen cyanide gas and oxides of nitrogen [Sax, 9th ed., 1996, p. 945].

健康ハザード

Vapor irritates eyes and causes giddiness, headache, fatigue, and nausea if inhaled.

健康ハザード

Cyanogen is a highly poisonous gas having toxic symptoms similar to those of HCN. Acute exposure can result in death by asphyxia. The toxic routes are inhalation and percutaneous absorption. At sublethal concentrations the symptoms of acute toxicity are nausea, vomiting, headache, confusion, and weakness.
Rats exposed to cyanogen exhibited toxic symptoms of respiratory obstruction, lacrimation, and somnolence. Exposure to 350 ppm for 1 hour caused death to 50% of test animals. In humans, exposure to 16 ppm for 5 minutes produced irritation of eyes and nose. Toxicity of cyanogen is considerably lower than that of HCN. Lethal dose in test animals from subcutaneous injection varied between 10 and 15 mg/kg. Ernesto et al. (2002) have reported persistent konzo epidemics and subclinical upper motor neuron damage along with an elevated urinary thiocyanate concentration in school children in Mozambique who were exposed to high cyanogen concentrations from cassava flour.
A subchronic toxicity study conducted on male rhesus monkeys and male albino rats exposed over a period of 6 months (6 hours/day, 5 days/week) indicated marginal toxicity of cyanogen at 25 ppm (Lewis et al. 1984). Total lung moisture content and body weights were significantly lower. The odor threshold level for cyanogen is about 250 ppm.

火災危険

Highly flammable, burns with a purpletinged flame; vapor density 1.8 (air = 1); the vapor may travel a considerable distance to an ignition source and flash back; fireextinguishing procedure: use a water spray to fight fire and keep fire-exposed containers cool; shut off the flow of gas.
Cyanogen forms an explosive mixture with air within the range of 6.6–32%. Liquid cyanogen can explode when mixed with liquid oxygen. When mixed with an acid or water or when heated to decomposition, it produces toxic fumes.

安全性プロファイル

: A poison by subcutaneous and possibly other routes. Moderately toxic by inhalation. Human systemic effects by inhalation: damage to the olfactory nerves and irritation of the conjunctiva. A systemic irritant by inhalation and subcutaneous routes. A human eyeirritant. Very dangerous fire hazard when exposed to heat, flames (sparks), or oxidizers. To fight fire, stop flow of gas. Potentially explosive reaction with powerful oxidants (e.g., dichlorine oxide, fluorine, oxygen, ozone). When heated to decomposition or on contact with acid, acid fumes, water, or steam will react to produce highly toxic fumes of NOx and CN-. See also other cyanogen entries and CYANIDE.

職業ばく露

Cyanogen is currently used as an intermediate in organic syntheses; at one time, it was used in poison gas warfare.

貯蔵

Cyanogen is stored outside or in a detached area: cool, dry, and well ventilated, and isolated from acid, acid fumes, and water. It is shipped in high-pressure metal cylinders of.

輸送方法

UN1026 Cyanogen, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 2.1-Flammable gas, Inhalation Hazard Zone B. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.

不和合性

Chemically unstable in rising tempera- tures. May form explosive mixture with air. Explosive reac- tion with strong oxidizers (e.g., dichlorine oxide, fluorine). Forms toxic gases on contact with acids, including hydro- gen cyanide. Slowly hydrolyzed in water to form hydrogen cyanide, oxalic acid, and ammonia.

廃棄物の処理

Return refillable compressed gas cylinders to supplier. Incineration; oxides, or nitrogen are removed from the effluent gas by scrubbers and/or ther- mal devices.

オキサロニトリル 上流と下流の製品情報

原材料

準備製品


オキサロニトリル 生産企業

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460-19-5(オキサロニトリル)キーワード:


  • 460-19-5
  • OXALONITRILE
  • CYANOGEN
  • cyanogene
  • dicyanogene
  • oxalonitrile cyanogen
  • Carbon nitride (C2N2)
  • Cyanogen (C2N2)
  • dicyan
  • シアノーゲン
  • ジシアノーゲン
  • オキサロニトリル
  • しゅう酸ジニトリル
  • カーボンニトリド(C2N2)
  • エタンジニトリル
  • ジシアン
  • 1,4-ジアザ-1,3-ブタジイン
  • シアノーゲン(C2N2)
  • シアン
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