20344-49-4

• 常用中文名：水合氧化铁(III)
• 常用英文名：Iron hydroxide oxide
• CAS号：20344-49-4
• 分子式：FeHO₂
• 分子量：88.85170
• 发布时间：2018-07-25 18:11:37
• 更新时间：2024-01-02 07:03:37
• 【用途一】
  主要用于涂料、水泥制件、建筑表面、塑料、橡胶的着色

名称

• 中文名: 水合氧化铁(III)
• 英文名: Iron hydroxide oxide
• 中文别名: 氧化铁(III); γ-氢氧化铁(III); 针铁矿
• 英文别名: Iron(III) hydroxide; dodecacarbonyl-triangulo-tri-iron; ferric acid; ferric oxide yellow; iron dodecarbonyl; dodecacarbonyltriiron(0); tri-iron dodecacarbonyl; iron oxide yellow; EINECS 243-746-4; dodecacarbonyltriiron; MFCD00016080; iron(III) oxide; Ferric hydroxide oxide; Ferric hydroxide oxide (Iron(III) oxide

物化性质

• 密度: 3.4-3.9
• 熔点: 135°C
• 分子式: FeHO₂
• 分子量: 88.85170
• 精确质量: 88.93260
• PSA: 23.06000
• 外观性状: 细,黄色,无气味的粉末
• 储存条件:

  放入紧密的贮藏器内，储存在阴凉，干燥的地方

• 稳定性:

  避免接触酸

• 计算化学:

  1.疏水参数计算参考值（XlogP）:无

  2.氢键供体数量:1

  3.氢键受体数量:2

  4.可旋转化学键数量:0

  5.互变异构体数量:无

  6.拓扑分子极性表面积37.3

  7.重原子数量:3

  8.表面电荷:0

  9.复杂度:10.3

  10.同位素原子数量:0

  11.确定原子立构中心数量:0

  12.不确定原子立构中心数量:0

  13.确定化学键立构中心数量:0

  14.不确定化学键立构中心数量:0

  15.共价键单元数量:1

• 更多:

  1.性状：无气味棕色粉末

  2.密度（g/mL,25/4℃）：4.03

  3.相对蒸汽密度（g/mL,空气=1）：未确定

  4.熔点（ºC）：未确定

  5.沸点（ºC,常压）：未确定

  6.沸点（ºC,5.2kPa）：未确定

  7.折射率：2.3

  8.闪点（ºC）：未确定

  9.比旋光度（º）：未确定

  10.自燃点或引燃温度（ºC）：未确定

  11.蒸气压（kPa,25ºC）：未确定

  12.饱和蒸气压（kPa,60ºC）：未确定

  13.燃烧热（KJ/mol）：未确定

  14.临界温度（ºC）：未确定

  15.临界压力（KPa）：未确定

  16.油水（辛醇/水）分配系数的对数值：未确定

  17.爆炸上限（%,V/V）：未确定

  18.爆炸下限（%,V/V）：未确定

  19.溶解性：未确定

MSDS

Section1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE Product identifiers Product name: Iron(III) oxide CAS-No.: 20344-49-4 Relevant identified uses of the substance or mixture and uses advised against Identified uses: Laboratory chemicals, Manufacture of substances Section2. HAZARDS IDENTIFICATION Classification of the substance or mixture Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008. Not a hazardous substance or mixture according to EC-directives 67/548/EEC or 1999/45/EC. Label elements The product does not need to be labelled in accordance with EC directives or respective national laws. Other hazards - none Section3. COMPOSITION/INFORMATION ON INGREDIENTS Substances Synonyms: Ferric hydroxide oxide Formula: HFeO2 Molecular Weight: 88,85 g/mol Section4. FIRST AID MEASURES Description of first aid measures If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. In case of skin contact Wash off with soap and plenty of water. In case of eye contact Flush eyes with water as a precaution. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Most important symptoms and effects, both acute and delayed Indication of any immediate medical attention and special treatment needed no data available Section5. FIREFIGHTING MEASURES Extinguishing media Suitable extinguishing media Use extinguishing measures that are appropriate to local circumstances and the surrounding environment. Special hazards arising from the substance or mixture Iron oxides Advice for firefighters Wear self contained breathing apparatus for fire fighting if necessary. Further information The product itself does not burn. Section6. ACCIDENTAL RELEASE MEASURES Personal precautions, protective equipment and emergency procedures Avoid dust formation. Avoid breathing vapors, mist or gas. Environmental precautions No special environmental precautions required. Methods and materials for containment and cleaning up Sweep up and shovel. Keep in suitable, closed containers for disposal. Reference to other sections For disposal see section 13. Section7. HANDLING AND STORAGE Precautions for safe handling Provide appropriate exhaust ventilation at places where dust is formed. Conditions for safe storage, including any incompatibilities Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Specific end uses no data available Section8. EXPOSURE CONTROLS/PERSONAL PROTECTION Control parameters Components with workplace control parameters Exposure controls Appropriate engineering controls General industrial hygiene practice. Personal protective equipment Eye/face protection Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Immersion protection Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: > 480 min Material tested:Dermatril® ( Z677272, Size M) Splash protection Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: > 30 min Material tested:Dermatril® ( Z677272, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 873000, test method: EN374 If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an Industrial Hygienist familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario. Body Protection Choose body protection in relation to its type, to the concentration and amount of dangerous substances, and to the specific work-place., The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Respiratory protection Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Section9. PHYSICAL AND CHEMICAL PROPERTIES Information on basic physical and chemical properties a) AppearanceForm: crystalline Colour: red brown b) Odourno data available c) Odour Thresholdno data available d) pHno data available e) Melting point/freezingno data available point f) Initial boiling point and no data available boiling range g) Flash pointnot applicable h) Evaporation rateno data available i) Flammability (solid, gas) no data available j) Upper/lowerno data available flammability or explosive limits k) Vapour pressureno data available l) Vapour densityno data available m) Relative densityno data available n) Water solubilityno data available o) Partition coefficient: n- no data available octanol/water p) Autoignitionno data available temperature q) Decompositionno data available temperature r) Viscosityno data available s) Explosive propertiesno data available t) Oxidizing propertiesno data available Other safety information no data available Section10. STABILITY AND REACTIVITY Reactivity no data available Chemical stability no data available Possibility of hazardous reactions no data available Conditions to avoid no data available Incompatible materials Strong oxidizing agents Hazardous decomposition products Other decomposition products - no data available Section11. TOXICOLOGICAL INFORMATION Information on toxicological effects Acute toxicity no data available Skin corrosion/irritation no data available Serious eye damage/eye irritation no data available Respiratory or skin sensitization no data available Germ cell mutagenicity no data available Carcinogenicity IARC:No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC. Reproductive toxicity no data available Specific target organ toxicity - single exposure no data available Specific target organ toxicity - repeated exposure no data available Aspiration hazard no data available Potential health effects InhalationMay be harmful if inhaled. May cause respiratory tract irritation. IngestionMay be harmful if swallowed. SkinMay be harmful if absorbed through skin. May cause skin irritation. Eyes May cause eye irritation. Additional Information RTECS: Not available Section12. ECOLOGICAL INFORMATION Toxicity no data available Persistence and degradability no data available Bioaccumulative potential no data available Mobility in soil no data available Results of PBT and vPvB assessment no data available Other adverse effects no data available Section13. DISPOSAL CONSIDERATIONS Waste treatment methods Product Offer surplus and non-recyclable solutions to a licensed disposal company. Contaminated packaging Dispose of as unused product. Section14. TRANSPORT INFORMATION UN number ADR/RID: -IMDG: -IATA: - UN proper shipping name ADR/RID: Not dangerous goods IMDG: Not dangerous goods IATA:Not dangerous goods Transport hazard class(es) ADR/RID: -IMDG: -IATA: - Packaging group ADR/RID: -IMDG: -IATA: - Environmental hazards ADR/RID: noIMDG Marine pollutant: noIATA: no Special precautions for user no data available SECTION 15 - REGULATORY INFORMATION N/A SECTION 16 - ADDITIONAL INFORMATION N/A

安全

• 个人防护装备: Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
• 危害码 (欧洲): Xn
• 危险品运输编码: NONH for all modes of transport
• WGK德国: -

制备

1.氧化铁黄主要是采用硫酸亚铁氧化法生产，可直接用硫酸亚铁溶液，也可用铁屑与硫酸制备硫酸亚铁，再加入苛性钠溶液和空气制得晶种、晶种成长、加热氧化、过滤、洗涤、干燥并粉碎而成，也可采用苯胺法生产。也可用空气使金属铁氧化而得。

2.在大约30℃温度下，将3L 0.5mol/L的氢氧化钠水溶液加入到5L 0.2mol/L的硫酸亚铁水溶液中，得到氢氧化亚铁。以较快的速度向其中输送空气，鼓泡2～3h，氧化之后生成极细小α-FeO(OH)晶种。将此晶种和铁屑、硫酸亚铁水溶液一起装到主反应槽，在40～60℃加热的条件下，慢慢通入空气。硫酸亚铁氧化的同时水解，形成α-FeO(OH)的晶种。另一方面，同时生成的硫酸和铁屑反应，补充硫酸亚铁。数小时到十几小时之后，当α-FeO(OH)达到所需的大小时停止反应。

3.制造时如不考虑粒径分布和粒子大小等问题，可向01mol/L硝酸铁加氢氧化钾作沉淀剂，稍过量一些，可以加热到室温至50℃之间，放置一昼夜。茶褐色无定形沉淀逐渐变为黄色α-FeO(OH)。α-FeO(OH)作为黄色颜料或者作为磁带录音用针状四氧化三铁和γ-Fe2O3的起始原料时，主要是按照制法（Ⅰ）进行工业生产。在280℃左右脱水则变为α-Fe2O3。这时，仍保留针状外形。β-FeO(OH)

4.β-FeO(OH)可由三氯化铁水解制得。将0.1mol/L三氯化铁水溶液的pH值调整到2左右，尽可能慢慢地加热（每小时升温10℃左右），在80℃保温2h之后，在室温下放置一昼夜。先用含有少量氨的水，再用蒸馏水洗涤之后，进行离心分离，在50℃下干燥。100g FeCl3·6H2O可得大约35g β-FeO(OH)。在组成中多多少少含有一些Cl-。γ-FeO(OH)

5.在Fe2+水溶液里，加入化学计算以下的碱金属氢氧化物，在溶解少量PO3-4的条件下进行空气氧化，经过被称为绿锈的绿色沉淀生成过程，得到γ-FeO(OH)。在碱过量的状态下，即使将CdI2型Fe(OH)2沉淀氧化，也得不到γ-FeO(OH)。另外，在溶解少量PO3-4时，可以抑制杂质α-FeO(OH)的生成，有可能生成只含γ-FeO(OH)的纯品。不加PO3-4时，几乎毫无例外，氧化生成物都是γ-相和α-相混合物。

将20.5g FeSO4·7H2O溶于1L水中，加5g氢氧化钠，再用少量氢氧化钠溶液将pH调节为5.0。相当于Na+和Fe2+的混合比（2Na+/Fe2+）约为085。再加1.3g Na2HPO4，待完全溶解后，加热到40℃，通入空气进行氧化。沉淀一旦经过深铜绿色就变为黄色的细小针状γ-FeO(OH)。为使粒子进一步成长，追加约30g FeSO4·7H2O，再加入70g网状金属铁，加热到60℃，鼓入空气，约20h后停止反应。粒子在这个过程中成长约1μm长。将沉淀分离，在50℃左右干燥。

6.取500mL吡啶，通二氧化碳并使其沸腾赶除氧气，冷却后再通入二氧化碳，在搅拌下慢慢加入125mL氯化亚铁水溶液，反应结束后静置一夜，将析出的氯化四吡啶合铁（Ⅱ）结晶过滤，用吡啶洗涤干燥。用蒸馏水按20g/L比例使其溶解。在最初15min稍强一些，以后就慢慢地送入净化的空气直至氧化完了为止。充分洗涤沉淀，在50℃下干燥。利用此法大体上可以得到05～1μm长的针状结晶。γFeO(OH)在250～300℃脱水，生成γ-Fe2O3。δ-FeO(OH)。δ-FeO(OH)是将氢氧化亚铁沉淀在30℃温度以下用过氧化氢溶液迅速氧化制得的。

7.将50mL 1.6mol/L硫酸亚铁水溶液在搅拌下慢慢加到约400mL 10mol/L氢氧化钠水溶液里。反应放出的热量用流动水冷却保持20℃左右。氢氧化亚铁在浓度为10～8mol/L浓度范围内的氢氧化钠水溶液里析出。将10mL 10%过氧化氢溶液在搅拌下快速加入（温度上升到30～35℃）。继续搅拌，在确证溶液底部白色沉淀完全被氧化之后放置一段时间，使沉淀沉降，首先用倾泻法再经抽吸过滤之后充分水洗，在50℃以下干燥。这样制得的δ-FeO(OH)粒子，保持着母体结晶氢氧化亚铁的粒子形态为六角板状，它的平均粒径可达0.1μm。用氢氧化钠作沉淀剂是适宜的。另外，初始氢氧化钠浓度越小，析出的氢氧化亚铁进而使δ-FeO(OH)粒子的尺寸也越小。

δ-FeO(OH)在室温下虽显强磁性，加热到75℃以上时，磁性逐渐减弱。大约200℃转变为α-FeO(OH)，大约300℃时则分解为α-Fe2O3。