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ナトリウムシアニド

ナトリウムシアニド 化学構造式
143-33-9
CAS番号.
143-33-9
化学名:
ナトリウムシアニド
别名:
ナトリウムシアニド;シアン化ナトリウム;青化ソーダ;青化ソ-ダ;青酸ソーダ;シアン化合物;シアン化ナトリウム REAGENT GRADE,97%;シアン化ナトリウム, min. 98%
英語化学名:
Sodium cyanide
英語别名:
NaCN;Cymag;Cyanobrik;Cyanogran;kyanidsodny;caswellno758;Kyanid sodny;Natriumcyanid;Sodium cyanide;cianurodisodio
CBNumber:
CB6754927
化学式:
CNNa
分子量:
49.01
MOL File:
143-33-9.mol

ナトリウムシアニド 物理性質

融点 :
563.7 °C(lit.)
沸点 :
1497°C
比重(密度) :
1.6
蒸気密度:
1.7 (vs air)
蒸気圧:
1 mm Hg ( 817 °C)
闪点 :
1500°C
貯蔵温度 :
Poison room
溶解性:
H2O: 1 M at 20 °C, clear, colorless
外見 :
Solid
色:
White
酸塩基指示薬変色域(pH):
11-12
臭い (Odor):
The dry salts are odorless, but reaction with atmospheric moisture produces HCN, whose bitter almond odor is detectable at 1 to 5 ppm; however, 20 to 60% of the population are reported to be unable to detect the odor of HCN.
PH:
11.7 (100g/l, H2O, 20°C)
水溶解度 :
37 g/100mL (20 ºC)
Sensitive :
Hygroscopic
Merck :
14,8605
BRN :
3587243
暴露限界値:
TLV-TWA (measured as CN) skin 5 mg CN/m3 (ACGIH and OSHA), 5 mg CN/m3/ 10-minute ceiling (NIOSH).
安定性::
hygroscopic
CAS データベース:
143-33-9(CAS DataBase Reference)
NISTの化学物質情報:
Sodium cyanide(143-33-9)
EPAの化学物質情報:
Sodium cyanide (143-33-9)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  T+,N
Rフレーズ  26/27/28-32-50/53-48/25
Sフレーズ  7-28-29-45-60-61-28A
RIDADR  UN 1689 6.1/PG 1
WGK Germany  3
RTECS 番号 VZ7525000
TSCA  Yes
国連危険物分類  6.1
容器等級  I
HSコード  28371110
有毒物質データの 143-33-9(Hazardous Substances Data)
毒性 LD50 orally in rats: 15 mg/kg (Smyth)
安衛法 特定化学物質障害予防規則:第2類物質,57,57-2
PRTR法 1-144
毒劇物取締法 I
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H290 金属腐食のおそれ 金属腐食性物質 1 警告 P234, P390, P404
H300 飲み込むと生命に危険 急性毒性、経口 1, 2 危険 P264, P270, P301+P310, P321, P330,P405, P501
H310 皮膚に接触すると生命に危険 急性毒性、経皮 1, 2 危険 P262, P264, P270, P280, P302+P350,P310, P322, P361, P363, P405, P501
H330 吸入すると生命に危険 急性毒性、吸入 1, 2 危険 P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
H372 長期にわたる、または反復暴露により臓器の障 害 特定標的臓器有害性、単回暴露 1 危険 P260, P264, P270, P314, P501
H400 水生生物に強い毒性 水生環境有害性、急性毒性 1 警告 P273, P391, P501
H410 長期的影響により水生生物に非常に強い毒性 水生環境有害性、慢性毒性 1 警告 P273, P391, P501
注意書き
P304+P340 吸入した場合:空気の新鮮な場所に移し、呼吸しやすい 姿勢で休息させること。
P320 特別な治療が緊急に必要である(このラベ ルの...を見よ)。
P330 口をすすぐこと。
P405 施錠して保管すること。

ナトリウムシアニド 価格 もっと(22)

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
林純薬工業株式会社 19002145 90%
Sodium cyanide 90%
143-33-9 500g ¥2400 2021-03-22 購入
林純薬工業株式会社 19002135 ≧97%
Sodium cyanide ≧97%
143-33-9 500g ¥2700 2021-03-22 購入
林純薬工業株式会社 205222-100G ≧95.0%
Sodium cyanide ≧95.0%
143-33-9 100g ¥15800 2021-03-22 購入
林純薬工業株式会社 205222-500G ≧95.0%
Sodium cyanide ≧95.0%
143-33-9 500g ¥29000 2021-03-22 購入
林純薬工業株式会社 205222-2.5KG ≧95.0%
Sodium cyanide ≧95.0%
143-33-9 2.5kg ¥90300 2021-03-22 購入

ナトリウムシアニド 化学特性,用途語,生産方法

外観

白色〜わずかにうすい黄色, 結晶〜粉末又は板状

溶解性

水に極めて溶けやすく、エタノールに溶けにくい。

解説

NaCN(49.01).青酸ソーダ(sodium prussiate)ともいう.以前は溶融したナトリウムにアンモニアを反応させてナトリウムアミドNaNHをつくり,これに赤熱したCを反応させると得られた.現在は,シアン化水素HCNが多量に得られるので,これとNaOHとの反応でつくられる.無色の立方晶系結晶.塩化ナトリウム型構造.C-N約1.1 Å.無水物は,密度1.86 g cm-3.融点563.7 ℃,沸点1496 ℃.乾燥空気中では370 ℃ まで安定である.潮解性があり,水に易溶.水溶液は加水分解のために強アルカリ性を示す.酸で(CO2でも)HCNを発生する.水溶液は空気の存在下で金,銀を溶かす.また,水酸化鉄(Ⅱ)と加熱するとNa4[Fe(CN)6]を生じる.水溶液を濃縮すると,二水和物の単斜晶系の結晶が得られる.硝酸塩などの強酸化剤と混合すると爆発することがある.代表的なシアン化物として有機合成,医薬品,農薬,顔料などの原料,金,銀の青化法による精錬,めっき,鋼の焼入れ,写真,殺虫剤,分析試薬などに広く用いられる.猛毒.[CAS 143-33-9]
森北出版「化学辞典(第2版)

用途

金の青化製錬、顔料(紺青)の原料、非鉄金属から銅及び銀などの抽出メッキ、金属の焼入れ、写真薬、還元剤、ビニリデン樹脂、医薬品メチオニン、黄血塩、分析用試薬

使用上の注意

潮解性あり。酸及び光によって分解する。

説明

Sodium cyanide, NaCN, is a cyanide salt that is a white, deliquescent, crystalline powder and is soluble in water. The specific gravity is 1.6, which is heavier than water. Sodium cyanide is toxic by inhalation and ingestion, with a TLV of 4.7 ppm and 5 mg/m3 of air. The target organs are the cardiovascular system, central nervous system, kidneys, liver, and skin. Reactions with acids can release flammable and toxic hydrogen cyanide gas. Cyanides are incompatible with all acids. The four-digit UN identification number is 1689.
The NFPA 704 designation is health 3, flammability 0, and reactivity 0. The primary uses are in gold and silver extraction from ores, electroplating, fumigation, and insecticides.

化学的特性

Sodium cyanide is found as white granules, flakes or lumps. Sodium cyanide is shipped as pellets or briquettes. Odorless when dry. It absorbs water from air (is hygroscopic or deliquescent). Hydrogen cyanide gas released by sodium cyanide has a distinctive mild, bitter almond odor, but a large proportion of people cannot detect it; the odor does not provide adequate warning of hazardous concentrations.

物理的性質

Physical Properties White cubic crystals; hygroscopic; density 1.6 g/cm3; melts at 563°C; very soluble in water; aqueous solution strongly alkaline and decomposes rapidly.

使用

Sodium cyanide is used for electroplating metals such as zinc, copper, cadmium, silver, and gold, and their alloys; for extracting gold and silver from ores; and as a fumigant and a chelating agent. It occurs in many varieties of maniocs (cassava), especially in bitter manioc.

使用

Extracting gold and silver from ores; electroplating baths; case hardening steel by liquid nitriding; manufacture of hydrocyanic acid and other cyanides.

定義

sodium cyanide: A white orcolourless crystalline solid, NaCN,deliquescent, soluble in water and inliquid ammonia, and slightly solublein ethanol; cubic; m.p. 564°C; b.p.1496°C. Sodium cyanide is now madeby absorbing hydrogen cyanide insodium hydroxide or sodium carbonatesolution. The compound is extremelypoisonous because it reacts with the iron in haemoglobin in theblood, so preventing oxygen reachingthe tissues of the body. It is used inthe extraction of precious metals andin electroplating industries. Aqueoussolutions are alkaline due to salt hydrolysis.

製造方法

Sodium cyanide can be prepared by several methods (See Potassium Cyanide).
It is prepared by passing hydrogen cyanide through a 50% aqueous solution of sodium hydroxide followed by evaporation of the solution in vacuum: NaOH + HCN → NaCN + H2O
Another method is to reduce sodamide with carbon at red heat: NaNH2 + C → NaCN + H2
Also, sodium cyanide can be made by heating a mixture of sodium carbonate and carbon with ammonia at high temperatures: Na2CO3 + 4C + 2NH3 → 2NaCN + 3CO↑ + 3H2↑.

調製方法

Sodium cyanide was first prepared in 1834 by heating Prussian Blue, a mixture of cyanogen compounds of iron, and sodium carbonate and extracting sodium cyanide from the cooled mixture using alcohol. Sodium cyanide remained a laboratory curiosity until 1887, when a process was patented for the extraction of gold and silver ores by means of a dilute solution of cyanide.

反応性

Sodium cyanide, NaCN, white solid, soluble, very poisonous, formed (1) by reaction of sodamide and carbon at high temperature, (2) by reaction of calcium cyanamide and sodium chloride at high temperature, reacts in dilute solution in air with gold or silver to form soluble sodium gold or silver cyanide, and used for this purpose in the cyanide process for recovery of gold. The percentage of available cyanide is greater than in potassium cyanide previously used. Used as a source of cyanide, and for hydrocyanic acid.

一般的な説明

A clear colorless aqueous solution.

空気と水の反応

Slowly evolves flammable and poisonous hydrogen cyanide gas.

反応プロフィール

Sodium cyanide is weakly basic. Reacts with acids of all kinds to generate quantities of very poisonous hydrogen cyanide gas. Incompatible with strong oxidizing agents, especially if solution dries out. Gives insoluble products with silver(I), mercury(I) and lead(II) ions that may decompose violently under certain conditions.

危険性

Toxic by ingestion and inhalation.

健康ハザード

Sodium cyanide is a white crystalline solid that is odorless when dry, but emits a slight odor of hydrogen cyanide in damp air. It is slightly soluble in ethanol and formamide. It is very poisonous. It explodes if melted with nitrite or chlorate at about 450°F. It produces a violent reaction with magnesium, nitrites, nitrates, and nitric acid. On contact with acid, acid fumes, water, or steam, it produces toxic and flammable vapors. Synonyms for sodium cyanide are hydrocyanic acid, sodium salt, and cyanide of sodium.

健康ハザード

Sodium cyanide is a highly poisonous compound by oral intake and by ocular and skin absorption. Accidental ingestion of a small quantity; as low as 100–150 mg could result in immediate collapse and instantaneous death in humans. At a lower dosage it can cause nausea, vomiting, hallucination, headache, and weakness. The toxicology of NaCN is the same as that of HCN. The metal cyanide forms HCN rapidly in the body, causing immediate death from a high dosage.
The lethal effect from cyanide poisoning varied with species. Investigating the acute oral toxicity of sodium cyanide in birds, Wiemeyer et al. (1986) observed that the LD50 values for the flesh-eating birds were lower than that for the birds that fed on plant material; vulture 4.8 mg/kg versus chicken 21 mg/kg. In a study on marine species, Pavicic and Pihlar (1983) found that at 10 ppm concentration of NaCN, invertebrates were more sensitive than fishes. In animals, the lethal dose of NaCN were in the same range by different toxic routes. A dose of 8 mg NaCN/kg resulted in ataxia, immobilization, and death in coyotes (Sterner 1979); however, the lethal time was longer, at 18 minutes.
Ballantyne (1983b) studied the acute lethal toxicity of sodium and other cyanides by ocular route. He found that cyanide instilled into the eye was absorbed across conjunctival blood vessels causing systemic toxicity and death within 3–12 minutes of the eye being contaminated. The toxicity of the cyanide did not decrease by mixing the solid with an inert powder such as kaolin.
LD50 value, intraperitoneal (mice): 4.3 mg/kg
LD50 value, oral (rats): 6.4 mg/kg
Sodium cyanide is a teratogen, causing fetus damage and developmental abnormalities in the cardiovascular system in hamsters (NIOSH 1986).
Sodium cyanide reacts with acids to form highly toxic hydrogen cyanide. There could be a slow liberation of HCN in contact with water.

燃焼性と爆発性

Sodium cyanide and potassium cyanide are noncombustible solids. Reaction with acids liberates flammable HCN.

工業用途

sodium cyanide and other water-soluble cyanides are used as modifying reagents for selective flotation of ores containing galena, sphalerite and gangue minerals.

安全性プロファイル

A deadly human poison by ingestion. A deadly experimental poison by ingestion, intraperitoneal, subcutaneous, intravenous, parenteral, intramuscular, and ocular routes. An experimental teratogen. Human systemic effects by ingestion: hallucinations, dstorted perceptions, muscle weakness, and gastritis. Experimental reproductive effects. hydrocyanic acid physiologically, inhibiting tissue oxidation and causing death through asphyxia. Cyanogen is probably as toxic as hydrocyanic acid; the nitriles are generally considered somewhat less toxic, probably because of their lower volathty. The nonvolaule cyanide salts appear to be relatively nonhazardous systemically, so long as they are not ingested and care is taken to prevent the formation of hydrocyanic acid. Workers, such as electroplaters and picklers, who are daily exposed to cyanide solutions may develop a “cyanide” rash, characterized by itching and by macular, papular, and vesicular eruptions. Frequently there is secondary infection. Exposure to small amounts of cyanide compounds over long periods of time is reported to cause loss of appetite, headache, weakness, nausea, dizziness, and symptoms of irritation of the upper respiratory tract and eyes. moisture, acid. Many cyanides evolve hydrocyanic acid rather easily. This is a flammable gas and is highly toxic. Carbon dioxide from the air is sufficiently acidc to liberate hydrocyanic acid from cyanide solutions. Explodes if melted with nitrite or chlorate @ about 450”. Violent reaction with F2, Mg, nitrates, HNO3, nitrites. Upon contact with acid, acid fumes, water, or steam, it wdl produce toxic and flammable vapors of CNand NanO. Used in the extraction of gold and silver ores, in electroplating, and in insecticides. See also CYANIDE and HYDROCYANIC ACID, The volaule cyanides resemble Flammable by chemical reaction with heat,

職業ばく露

Sodium cyanide is used as a solid or in solution to extract metal ores, in electroplating and metal cleaning baths; in metal hardening; in treatment of rabbit and rat burrows and holes and termite nests; in insecticides

貯蔵

In particular, work with cyanides should be conducted in a fume hood to prevent exposure by inhalation, and splash goggles and impermeable gloves should be worn at all times to prevent eye and skin contact. Cyanide salts should be stored in a cool, dry location, separated from acids.

輸送方法

UN1689 Sodium cyanide, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

不和合性

Sodium cyanide decomposes on contact with acids, acid salts, water, moisture, alcohols, and carbon dioxide, releasing highly toxic and flammable hydrogen cyanide gas. Aqueous solution is a strong base; it reacts violently with acid and is corrosive. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Absorbs moisture from the air forming a corrosive syrup. Corrosive to active metals, such as aluminum, copper, and zinc. Under acid conditions, sarin hydrolyzes to form hydrofluoric acid.

廃棄物の処理

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. Add strong alkaline hypochlorite and react for 24 hours. Then flush to sewer with large volumes of water.

ナトリウムシアニド 上流と下流の製品情報

原材料

準備製品


ナトリウムシアニド 生産企業

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143-33-9(ナトリウムシアニド)キーワード:


  • 143-33-9
  • Sodium Cyanide, Reagent
  • Sodium cyanide,liquid
  • Sodium cyanide, extra pure, 98+%
  • Sodium cyanide, for analysis ACS, 95+%
  • Sodium cyanide, p.a.
  • Sodiumcyanide,min.98%
  • SODIUMCYANIDE,BRIQUETTE
  • SODIUMCYANIDE,REAGENT,ACS
  • SODIUMCYANIDE,TECHNICAL
  • Natriumcyanid
  • Sodium cyanide, ACS, 95% min
  • Sodium cyanide, PRS, 98% min
  • Sodium cyanide, briquettes, 98%
  • Sodium cyanide, for analysis ACS
  • SODIUM CYANIDE, GRANULES
  • kyanidsodny(czech)
  • m-44cyanidecapsules
  • NaCN
  • prussiateofsoda
  • rcrawastenumberp106
  • Sodium cyanide (Na(CN))
  • sodiumcyanide(ascn)
  • sodiumcyanide(na(cn))
  • SODIUM CYANIDE, ACS
  • SODIUM CYANIDE, REAGENTPLUS, 99.98%
  • SODIUM CYANIDE 98 % NACN, LUMPS
  • SodiumCyanideGr
  • SodiumCyanide,>98%
  • SodiumCyanideExtraPure
  • sondium cyanide
  • ナトリウムシアニド
  • シアン化ナトリウム
  • 青化ソーダ
  • 青化ソ-ダ
  • 青酸ソーダ
  • シアン化合物
  • シアン化ナトリウム REAGENT GRADE,97%
  • シアン化ナトリウム, min. 98%
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