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トリオキソクロム(VI) 化学構造式
無水クロム酸;クロム(VI)トリオキシド;三酸化クロム;トリオキソクロム(VI);酸化クロム(VI);水クロム酸;6価クロム化合物;三酸化クロム(VI);酸化クロム(Ⅵ) ;酸化クロム(Ⅵ)、;無水クロム(Ⅵ)酸;無水クロム酸〔酸化クロム(Ⅵ)〕;酸化クロム(VI) (無水クロム酸);酸化クロム(VI) PURISS. P.A.,ACS REAGENT,≥99.0% (RT);クロム酸混液;酸化クロム( Ⅵ);酸化クロム(VI), 99.5%
Chromium(VI) oxide
CrO3;Chromic;NA 1463;Chromtrioxid;chromia(cro3);Chrome bronze;CHROMERGE(TM);Chroomtrioxyde;anidridecromica;chromic(vi)acid
MOL File:

トリオキソクロム(VI) 物理性質

融点 :
196 °C (dec.)(lit.)
沸点 :
330 °C
比重(密度) :
闪点 :
貯蔵温度 :
Store below +30°C.
外見 :
<1 (100g/l, H2O, 20℃)
水溶解度 :
Highly soluble
凝固点 :
Sensitive :
Merck :
Stable. Strong oxidizer. Reacts with most organic material in a violent and often explosive fashion. Moisture sensitive.
CAS データベース:
1333-82-0(CAS DataBase Reference)
Chromium trioxide(1333-82-0)
Chromium oxide (CrO3)(1333-82-0)
  • 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  O,T+,N,T
Rフレーズ  45-46-9-24/25-26-35-42/43-48/23-50/53-62-8
Sフレーズ  53-45-60-61-36/37/39-28-26-22
RIDADR  UN 1463 5.1/PG 2
WGK Germany  3
RTECS 番号 GB6650000
国連危険物分類  5.1
容器等級  II
HSコード  28191000
有毒物質データの 1333-82-0(Hazardous Substances Data)
毒性 LD50 oral (rat) 80 mg/kg
PEL (OSHA) 0.1 mg (CrO3)/m3 (ceiling)
TLV-TWA (ACGIH) 0.05 mg (Cr)/m3
消防法 危険物第1類
化審法 優先評価化学物質
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 第1種指定化学物質(特定物質)
毒劇物取締法 II
注意喚起語 Danger
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
H271 火災または爆発のおそれ;強酸化性物質 酸化性液体; 酸化性固体 1 危険 P210, P220, P221, P280, P283,P306+P360, P371+P380+P375,P370+P378, P501
H301 飲み込むと有毒 急性毒性、経口 3 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
H314 重篤な皮膚の薬傷?眼の損傷 皮膚腐食性/刺激性 1A, B, C 危険 P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H317 アレルギー性皮膚反応を起こすおそれ 感作性、皮膚 1 警告 P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H318 重篤な眼の損傷 眼に対する重篤な損傷性/眼刺激 性 1 危険 P280, P305+P351+P338, P310
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
H334 吸入するとアレルギー、喘息または、呼吸困難 を起こすおそれ 感作性、呼吸器 1 危険 P261, P285, P304+P341, P342+P311,P501
H340 遺伝性疾患のおそれ 生殖細胞変異原性 1A, 1B 危険
H350 発がんのおそれ 発がん性 1A, 1B 危険
H361 生殖能または胎児への悪影響のおそれの疑い 生殖毒性 2 警告 P201, P202, P281, P308+P313, 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
P201 使用前に取扱説明書を入手すること。
P210 熱/火花/裸火/高温のもののような着火源から遠ざ けること。-禁煙。
P260 粉じん/煙/ガス/ミスト/蒸気/スプレーを吸入しないこ と。
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P284 呼吸用保護具を着用すること。
P303+P361+P353 皮膚(または髪)に付着した場合:直ちに汚染された衣 類をすべて脱ぐこと/取り除くこと。皮膚を流水/シャワー で洗うこと。
P305+P351+P338 眼に入った場合:水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。
P308+P313 暴露または暴露の懸念がある場合:医師の診断/手当てを 受けること。

トリオキソクロム(VI) 価格 もっと(41)

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
富士フイルム和光純薬株式会社(wako) W01SRM93-2443
Chromium(VI) oxide, 99.5%
1333-82-0 500g ¥17600 2018-12-26 購入
富士フイルム和光純薬株式会社(wako) W01SRM93-2443
Chromium(VI) oxide, 99.5%
1333-82-0 2kg ¥63400 2018-12-26 購入
関東化学株式会社(KANTO) 07355-00 酸化クロム(VI) (無水クロム酸) >98.0%(T)
Chromium(VI) oxide >98.0%(T)
1333-82-0 500g ¥8500 2018-12-13 購入
関東化学株式会社(KANTO) 07355-01 酸化クロム(VI) (無水クロム酸) >96.0%(T)
Chromium(VI) oxide >96.0%(T)
1333-82-0 500g ¥3900 2018-12-13 購入
Sigma-Aldrich Japan 232653 酸化クロム(VI) ReagentPlus?, 99.9% trace metals basis
Chromium(VI) oxide ReagentPlus?, 99.9% trace metals basis
1333-82-0 5g ¥5600 2018-12-25 購入

トリオキソクロム(VI) MSDS

Chromium trioxide

トリオキソクロム(VI) 化学特性,用途語,生産方法


赤色~暗赤紫色, 結晶~結晶性粉末


水に易溶 (163.37g/100ml, 20℃), エタノール, エーテルに可溶。注意:エタノールと混合すると発火爆発する。








Chromium trioxide is a dark-red crystalline substance. It is odorless


Dark-red crystals, flakes or granular powder; bipyramidal prismatic system; density 2.70 g/cm3; melts at 197°C; decomposes on further heating; highly soluble in water, 61.7 g and 67 g/100 mL at 0°C and 100°C, respectively; soluble in sulfuric and nitric acids.


ChEBI: A chromium oxide composed of a single chromium bound (oxidation state +6) to three oxygens; the acidic anhydride of chromic acid.


Chromium(VI) oxide is prepared by heating sodium dichromate dihydrate with a slight excess of sulfuric acid in a steel tank or cast iron container: Na2Cr2O7 + 2H2SO4 → 2CrO3 + 2NaHSO4 + H2O The temperature of the mixture is kept above the melting point of chromium(VI) oxide to evaporate water and separate the top layer of sodium bisulfate from the molten chromium(VI) oxide at the bottom. Temperature control and duration of heating is very crucial in the process. Temperatures over 197°C (melting point), or allowing the molten mass to stand for a longer time, may result in decomposition of the product.


chromium trioxide: A redcompound, CrO3; rhombic; r.d. 2.70;m.p. 196°C. It can be made by carefuladdition of concentrated sulphuricacid to an ice-cooled concentratedaqueous solution of sodium dichromatewith stirring. The mixture isthen filtered through sintered glass,washed with nitric acid, then dried at120°C in a desiccator.
Chromium(VI) oxide is an extremelypowerful oxidizing agent,especially to organic matter; it immediatelyinflames ethanol. It is anacidic oxide and dissolves in water toform ‘chromic acid’, a powerful oxidizingagent and cleansing fluid forglassware. At 400°C, chromium(VI)oxide loses oxygen to givechromium(III) oxide.


Deliquescent. Water soluble, giving acidic solutions.


CHROMIUM TRIOXIDE is a powerful oxidizing agent. Can react violently upon contact with reducing reagents, including organic matter, leading to ignition or explosion. Dangerously reactive with acetone, alcohols, alkali metals (sodium, potassium), ammonia, arsenic, dimethylformamide, hydrogen sulfide, phosphorus, peroxyformic acid, pyridine, selenium, sulfur, and many other chemicals [Sax, 9th ed., 1996, p. 852]. Noncombustible but can accelerate the burning of combustible materials. Sufficient heat may be generated from the reaction with combustible materials to ignite the mass. Aqueous solutions corrode many metals rapidly. Often mixed with sulfuric acid to make "cleaning solution" for glass. Used cleaning solution in closed bottles may explode due to the build up of gaseous carbon dioxide arising from oxidation of organic impurities [Bryson, W. R., Chem. Brit., 1975, 11, p. 377].


Toxic by ingestion. Inhalation of dust is toxic. Fire may produce irritating, corrosive and/or toxic gases. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control or dilution water may cause pollution.


Chromium trioxide and other chromium(VI) salts are moderately toxic substances by ingestion; 1 to 15 g may be a fatal dose in humans. Ingestion of nonlethal doses of these compounds can cause stomach, liver, and kidney damage; symptoms may include clammy, cyanotic skin, sore throat, gastric burning, vomiting, and diarrhea. Chromic acid is irritating to the skin, and prolonged contact can cause ulceration. Inhalation of chromate dust or chromic acid mist can result in severe irritation of the nose, throat, bronchial tubes, and lungs and may cause coughing, labored breathing, and swelling of the larynx. Eye contact with chromium trioxide and its solutions can cause severe burns and possible loss of vision.
Occupational exposure to chromium(VI) compounds has been related to an increased risk of lung cancer. Several hexavalent compounds of chromium, including chromium trioxide, are listed in IARC Group 1 ("carcinogenic to humans") and are classified as "select carcinogens" under the criteria of the OSHA Laboratory Standard. Long-term exposure to chromium trioxide or chromium(VI) salts may cause ulceration of the respiratory system and skin. Exposure to chromium trioxide by inhalation or skin contact may lead to sensitization. Chromium trioxide has exhibited teratogenic activity in animal tests.


These substances will accelerate burning when involved in a fire. May explode from heat or contamination. Some may burn rapidly. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.


Chromium trioxide is not combustible but is a strong oxidizing agent and can accelerate the burning rate of combustible materials. Contact with easily oxidized organic or other combustible materials (including paper and oil) may result in ignition, violent combustion, or explosion. The use of dry chemical, carbon dioxide, Halon, or water spray extinguishers is recommended for fires involving chromium (VI) compounds.


Chromium trioxide is not combustible but is a strong oxidizing agent and can accelerate the burning rate of combustible materials. Contact with easily oxidized organic or other combustible materials (including paper and oil) may result in ignition, violent combustion, or explosion. The use of dry chemical, carbon dioxide, Halon, or water spray extinguishers is recommended for fires involving chromium (VI) compounds.


Chromium trioxide is used in plating and metal treatment, as a corrosion inhibitor; and as an oxidant; in aluminum anodizing, dye; ink, and paint manufacturing, tanning, engraving; and photography.


Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.


Chromium trioxide should be handled in a fume hood to avoid the inhalation of dust, and impermeable gloves should be worn at all times to prevent skin contact. The practice of using chromate solutions to clean glassware should be avoided. Chromium trioxide should be stored in areas separated from readily oxidized materials.


UN1463 (anhydrous), Chromium trioxide, anhydrous, Chromium trioxide, anhydrous, Hazard Class: 5.1; Labels: 5.1-Oxidizer, 6.1-Poisonous materials, 8-Corrosive material. UN1755 (solution), Hazard class: 8; Labels: 8-Corrosive material.


It separates when potassium or sodium dichromate are dissolved in conc H2SO4. Dry it in a vacuum desiccator over NaOH pellets. It is a hygroscopic, powerful oxidant and can ignite with organic compounds. It is a skin and pulmonary IRRITANT. [Keyes et al. Industrial Chemicals (Lowenheim & Moran eds.) 4th edn J. Wiley pp 270-274 1975.] CANCER SUSPECT.


Chromium trioxide is a strong oxidizer. The solution in water is a strong acid. Reacts violently with bases and is corrosive. Contact with reducing agents; fuels, organic chemicals, flammable and combustible materials, causing fire and explosion hazard. This chemical decomposes above 250C to chromic oxide and oxygen with increased fire hazard. Attacks metals in the presence of moisture.


Reduce to Cr(III). If material cannot be recovered and recycled, dispose of sludge in a chemical waste landfill.

トリオキソクロム(VI) 上流と下流の製品情報



トリオキソクロム(VI) 生産企業

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  • 1333-82-0
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  • 無水クロム酸
  • クロム(VI)トリオキシド
  • 三酸化クロム
  • トリオキソクロム(VI)
  • 酸化クロム(VI)
  • 水クロム酸
  • 6価クロム化合物
  • 三酸化クロム(VI)
  • 酸化クロム(Ⅵ) 
  • 酸化クロム(Ⅵ)、
  • 無水クロム(Ⅵ)酸
  • 無水クロム酸〔酸化クロム(Ⅵ)〕
  • 酸化クロム(VI) (無水クロム酸)
  • 酸化クロム(VI) PURISS. P.A.,ACS REAGENT,≥99.0% (RT)
  • クロム酸混液
  • 酸化クロム( Ⅵ)
  • 酸化クロム(VI), 99.5%
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