二氯化铬，氯化亚铬（CAS 10049-05-5）：分子式 Cl2Cr、分子量 122.90；类别 精细化学品。
| CAS号 | 10049-05-5 |
|---|---|
| 分子式 | Cl2Cr |
| 分子量 | 122.90 |
| 熔点 | 1515 °F (USCG, 1999) |
| 沸点 | 1200 °C |
| 应用领域 | Uses: Used in chromium plating and as a catalyst、oxygen absorbent、and textile mordant、[HSDB]、Electroplating [Category: Plate]、Textiles (Printing、Dyeing、or Finishing) [Category: Industry]、In chromizing、in preparation of Cr metal、in catalysts for organic reactions、as O2 absorbent、in analysis、Reducing agent、catalyst、reagent、chromizing.、Chromous chloride reaction followed by gas-liquid chromatography analysis is described for simultaneous confirmation of heptachlor & endrin residues.、Gaseous chromium(II) halides ... are used to produce chromium diffusion layers on iron and nickel parts.、Chromium(II) halides、1) Use in fabrication of alloys、2) use in preparation of alloy steels to enhance corrosion and heat resistance、3) use in fabrication of plated products for decoration or increased wear resistance、4) use in production of non-ferrous alloys to impart special qualities to the alloys、5) use in production and processing of insoluble salts、6) use as chemical intermediates、use in textile industry in dyeing、silk treating、printing、and moth proofing wool、7) use in leather industry in tanning、use in photographic fixing baths、8) use as catalysts for halogenation、alkylation、and catalytic cracking of hydrocarbons、and 9) use as fuel additives and propellant additives、in ceramics.、Chromium metal and insoluble chromium salts、Chromium(II) chloride is used as a precursor to other inorganic and organometallic chromium complexes. (L519)、Methods of Manufacturing: Reaction of the metal with anhydrous hydrogen chloride.、For making chromous chloride (CrCl2)、Chromium ores & coal are ground to 0.074 & 0.25 mm、respectively、pelleted、dried at 200 to 220 °C、& chlorinated at 800 to 950 °C in an electric shaft furnace. ... The chromium loss is 2 to 8 wt percent.、... Prepared by reaction of the hydrohalide and pure Cr metal at high temperatures、or anhydrous chromium(II) acetate ... at lower temperatures、or by hydrogen reduction of the Cr(III) halide at about 500-800 °C.、Impurities: The iron content is 2 wt percent、maximum、& averages equal to or less than 0.2 wt percent、sometimes 0.03 to 0.08 wt percent.、Formulations、Preparations: -80 mesh、99.9% purity grades、available、There are a few forms of chromium available for nutritional supplementation. They include chromium picolinate、chromium polynicotinate、chromium chloride and high-chromium yeast. These forms are available as stand-alone supplements or in combination products.、Chromium supplements、General Manufacturing Information: Chromium chloride (CrCl2): ACTIVE、Compounds of divalent chromium are extremely unstable in air and、therefore、are of only minor importance in industry.、Chromium(II) compounds |
| 类别 | 基础化工原料 |
登记用途：Uses: Used in chromium plating and as a catalyst、oxygen absorbent、and textile mordant、[HSDB]、Electroplating [Category: Plate]、Textiles (Printing、Dyeing、or Finishing) [Category: Industry]、In chromizing、in preparation of Cr metal、in catalysts for organic reactions、as O2 absorbent、in analysis、Reducing agent、catalyst、reagent、chromizing.、Chromous chloride reaction followed by gas-liquid chromatography analysis is described for simultaneous confirmation of heptachlor & endrin residues.、Gaseous chromium(II) halides ... are used to produce chromium diffusion layers on iron and nickel parts.、Chromium(II) halides、1) Use in fabrication of alloys、2) use in preparation of alloy steels to enhance corrosion and heat resistance、3) use in fabrication of plated products for decoration or increased wear resistance、4) use in production of non-ferrous alloys to impart special qualities to the alloys、5) use in production and processing of insoluble salts、6) use as chemical intermediates、use in textile industry in dyeing、silk treating、printing、and moth proofing wool、7) use in leather industry in tanning、use in photographic fixing baths、8) use as catalysts for halogenation、alkylation、and catalytic cracking of hydrocarbons、and 9) use as fuel additives and propellant additives、in ceramics.、Chromium metal and insoluble chromium salts、Chromium(II) chloride is used as a precursor to other inorganic and organometallic chromium complexes. (L519)、Methods of Manufacturing: Reaction of the metal with anhydrous hydrogen chloride.、For making chromous chloride (CrCl2)、Chromium ores & coal are ground to 0.074 & 0.25 mm、respectively、pelleted、dried at 200 to 220 °C、& chlorinated at 800 to 950 °C in an electric shaft furnace. ... The chromium loss is 2 to 8 wt percent.、... Prepared by reaction of the hydrohalide and pure Cr metal at high temperatures、or anhydrous chromium(II) acetate ... at lower temperatures、or by hydrogen reduction of the Cr(III) halide at about 500-800 °C.、Impurities: The iron content is 2 wt percent、maximum、& averages equal to or less than 0.2 wt percent、sometimes 0.03 to 0.08 wt percent.、Formulations、Preparations: -80 mesh、99.9% purity grades、available、There are a few forms of chromium available for nutritional supplementation. They include chromium picolinate、chromium polynicotinate、chromium chloride and high-chromium yeast. These forms are available as stand-alone supplements or in combination products.、Chromium supplements、General Manufacturing Information: Chromium chloride (CrCl2): ACTIVE、Compounds of divalent chromium are extremely unstable in air and、therefore、are of only minor importance in industry.、Chromium(II) compounds。
二氯化铬，氯化亚铬 是一种高附加值精细化合物，登记 CAS 号为 10049-05-5，分子式 Cl2Cr（分子量 122.90），归属于精细化学品大类化工原料。
登记 CAS 号：10049-05-5
其分子式 Cl2Cr 由 2 个氯、1 个铬 组成。
别名/同义词：二氯化铬，氯化亚铬 · Chromous acid
所属分类：精细化学品
二氯化铬，氯化亚铬 的 CAS 登记号为 10049-05-5。
分子式 Cl2Cr，分子量 122.90。
别名/同义词：二氯化铬，氯化亚铬、Chromous acid。
登记用途：Uses: Used in chromium plating and as a catalyst、oxygen absorbent、and textile mordant、[HSDB]、Electroplating [Category: Plate]、Textiles (Printing、Dyeing、or Finishing) [Category: Industry]、In chromizing、in preparation of Cr metal、in catalysts for organic reactions、as O2 absorbent、in analysis、Reducing agent、catalyst、reagent、chromizing.、Chromous chloride reaction followed by gas-liquid chromatography analysis is described for simultaneous confirmation of heptachlor & endrin residues.、Gaseous chromium(II) halides ... are used to produce chromium diffusion layers on iron and nickel parts.、Chromium(II) halides、1) Use in fabrication of alloys、2) use in preparation of alloy steels to enhance corrosion and heat resistance、3) use in fabrication of plated products for decoration or increased wear resistance、4) use in production of non-ferrous alloys to impart special qualities to the alloys、5) use in production and processing of insoluble salts、6) use as chemical intermediates、use in textile industry in dyeing、silk treating、printing、and moth proofing wool、7) use in leather industry in tanning、use in photographic fixing baths、8) use as catalysts for halogenation、alkylation、and catalytic cracking of hydrocarbons、and 9) use as fuel additives and propellant additives、in ceramics.、Chromium metal and insoluble chromium salts、Chromium(II) chloride is used as a precursor to other inorganic and organometallic chromium complexes. (L519)、Methods of Manufacturing: Reaction of the metal with anhydrous hydrogen chloride.、For making chromous chloride (CrCl2)、Chromium ores & coal are ground to 0.074 & 0.25 mm、respectively、pelleted、dried at 200 to 220 °C、& chlorinated at 800 to 950 °C in an electric shaft furnace. ... The chromium loss is 2 to 8 wt percent.、... Prepared by reaction of the hydrohalide and pure Cr metal at high temperatures、or anhydrous chromium(II) acetate ... at lower temperatures、or by hydrogen reduction of the Cr(III) halide at about 500-800 °C.、Impurities: The iron content is 2 wt percent、maximum、& averages equal to or less than 0.2 wt percent、sometimes 0.03 to 0.08 wt percent.、Formulations、Preparations: -80 mesh、99.9% purity grades、available、There are a few forms of chromium available for nutritional supplementation. They include chromium picolinate、chromium polynicotinate、chromium chloride and high-chromium yeast. These forms are available as stand-alone supplements or in combination products.、Chromium supplements、General Manufacturing Information: Chromium chloride (CrCl2): ACTIVE、Compounds of divalent chromium are extremely unstable in air and、therefore、are of only minor importance in industry.、Chromium(II) compounds。
所属分类：基础化工原料。
二氯化铬，氯化亚铬（CAS 10049-05-5）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 10049-05-5 |
|---|---|
| PubChem CID | 24871 |
| Molecular formula | Cl2Cr |
| IUPAC name | dichlorochromium |
| UNII (FDA) | CET32HKA21 |
| Molecular Weight | 122.90 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 121.878210 |
| Monoisotopic Mass | 121.878210 |
| Topological Polar Surface Area | 0 |
| Heavy Atom Count | 3 |
| Boiling Point | 1200 °C |
|---|---|
| Boiling Point | 1300 °C |
| Boiling Point | 1300 °C @760 [mm Hg] |
| Melting Point | 1515 °F (USCG, 1999) |
| Melting Point | 824 °C |
| Density | 2.751 at 14 °C/4 °C |
| Density | 2.8 g/cm³ |
| Density | 2.751 @ 14°C |
CHROMOUS CHLORIDE; Dichlorochromium; Chromium(II) chloride (1:2); chromium (II) chloride; CET32HKA21; RefChem:125926; DTXCID601334652; 233-163-3; 10049-05-5; CHROMIUM CHLORIDE (CrCl2); Chromium dichloride; chromium(II) chloride; DTXSID20905548; CrCl2; Chromium(II) chloride, anhydrous; HSDB 988
| Reported hazard statements | H302 (100%), H315 (88.9%), H319 (88.9%), H335 (86.7%) |
|---|
H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
H315 (88.9%): Causes skin irritation [Warning Skin corrosion/irritation]
Chromous acid · CAS 10049-05-5 · Cl2Cr. UNII CET32HKA21. Boiling Point: 1200 °C; Boiling Point: 1300 °C; Boiling Point: 1300 °C @760 [mm Hg].
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: Chromous acid