Diiodomethane (stabilized with Copper chip)
Diiodomethane
CAS: 75-11-6
Molecular Formula: CH2I2
Diiodomethane (stabilized with Copper chip) - Names and Identifiers
| Name | Diiodomethane |
| Synonyms | Diiodmethane Diiodomethane Di-iodomethane Methylene iodide 1,1-diiodomethane Methylene diiodide Diiodomethane, stabilized Diiodomethane (stabilized with Copper chip) |
| CAS | 75-11-6 |
| EINECS | 200-841-5 |
| InChI | InChI=1/CH2I2/c2-1-3/h1H2 |
Diiodomethane (stabilized with Copper chip) - Physico-chemical Properties
| Molecular Formula | CH2I2 |
| Molar Mass | 267.84 |
| Density | 3.325g/mLat 25°C(lit.) |
| Melting Point | 6 °C |
| Boling Point | 67-69°C11mm Hg(lit.) |
| Flash Point | 181°C |
| Water Solubility | 14 g/L (20 ºC) |
| Solubility | 0.8g/l |
| Vapor Presure | 1.13mmHg at 25°C |
| Vapor Density | 9.25 (vs air) |
| Appearance | Liquid |
| Specific Gravity | 3.325 |
| Color | deep yellow |
| Merck | 14,6066 |
| BRN | 1696892 |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with strong oxidizing agents, strong bases. Reacts violently with alkali metal salts. May discolour on exposure to light. |
| Sensitive | Light Sensitive |
| Refractive Index | 1.737 |
| Physical and Chemical Properties | Appearance and properties colorless clear to light yellow liquid density 3.325 melting point 6°C boiling point 181°C refractive index 1.737 water-soluble 14g/L (20°C) |
| Use | Used as analytical reagents, but also for organic synthesis |
Diiodomethane (stabilized with Copper chip) - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | 2810 |
| WGK Germany | 3 |
| RTECS | PA8575000 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 29033080 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 76 mg/kg |
Diiodomethane (stabilized with Copper chip) - Nature
Open Data Verified Data
Heavy high refractive index yellow liquid. Soluble in about 70 times of water, and ethanol, ether, propanol, isopropanol, hexane, cyclohexane, chloroform and benzene miscible. Soluble sulfur and phosphorus (more than 1:1 at 25 °c). It is easy to decompose in air, and it is easy to turn black when exposed to light, air and moisture. Relative density (d20)3. 3254. Melting point 5.7 °c. Crystallization usually begins when cooled to 0 °c. Boiling point 180 degrees C (decomposition). Refractive index 7425. Viscosity (10 deg C) 3.35mPa.s.
Last Update：2025-06-10 22:55:16
Diiodomethane (stabilized with Copper chip) - Preparation Method
Open Data Verified Data
- iodoform-sodium arsenite method: first, sodium arsenite is prepared by reacting arsenic trioxide with liquid alkali, and then the mixture is mixed with iodoform and sodium arsenite solution and heated to 60~65 ℃ under stirring, further, sodium hydroxide was added for one-step reaction to prepare diiodomethane. The reaction product was washed with water, distilled, decolorized, crystallized, separated and dried to obtain a finished product.
- The iodoform method is obtained by the interaction with sodium acetate, and the finished product is obtained by distillation.
- phase transfer catalytic synthesis using triethylbenzylammonium chloride as catalyst, obtained by the reaction of dichloromethane and sodium iodide.
Last Update：2022-01-01 10:13:59
Diiodomethane (stabilized with Copper chip) - Application
Open Data Verified Data
organic synthesis raw materials, chemical reagents and pharmaceutical intermediates can be used for the manufacture of X-ray contrast agents, the determination of mineral density and refractive index, and the separation of minerals.
Last Update：2025-08-19 16:24:40
Diiodomethane (stabilized with Copper chip) - Safety
Open Data Verified Data
toxic. Less narcotic than dibromomethane, post-olfactory Head Pain, Dyspnea. See dibromomethane. Packed in brown glass bottles, 5kg per bottle. The bottle was wrapped with light-shielding paper.
Last Update：2025-06-10 22:55:16
Diiodomethane (stabilized with Copper chip) - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| purpose | This product is organic synthesis raw materials, chemical reagents and pharmaceutical intermediates, can be used for the manufacture of X-ray contrast agent, determination of mineral relative density and refractive index, verification of pyridine, and separation of minerals. used as analytical reagent, also used in organic synthesis used in organic synthesis and separation of mixed minerals |
| production method | the reaction of iodoform with sodium acetate in ethanol. After the reaction, diiodomethane was obtained by distillation. It can also be prepared by the following method. 1. Iodoform-sodium arsenite method first uses arsenic trioxide and liquid alkali reaction to prepare sodium arsenite, and then by iodoform, sodium arsenite solution mixing, under stirring heating to 60-65 ℃, and then sodium hydroxide one-step reaction to prepare diiodomethane. The reaction product was washed with water, distilled, decolorized, crystallized, separated and dried to obtain a finished product. 2. Iodoform method by sodium acetate derived. Phase transfer catalytic synthesis using triethylbenzylammonium chloride as catalyst, obtained by the reaction of dichloromethane and sodium iodide. |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | intraperitoneal-rat LD50: 403 mg/kg; Intraperitoneal-mouse LD50: 467 mg/kg |
| flammability hazard characteristics | Thermal decomposition; Toxic iodide smoke from combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from oxidants and food additives |
| fire extinguishing agent | water, foam, carbon dioxide, sand |
Last Update：2024-04-09 02:00:11
Supplier List
Featured Products
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: +86 18942506900
Email: lilyqu@chemoway.com
Mobile: +86 18942506900
QQ: 3182628472
Wechat: +86 18942506900
WhatsApp: +86 18942506900
Linkedin: +86 18942506900
Spot supply
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: 021-60556179
Email: 18721521379@163.com
Mobile: +86-18721521379
Wechat: 18721521379
Spot supply
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: 0513-66814854
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Spot supply
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: +86-17505207175
Email: 3787852685@qq.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Spot supply
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: +86-13776910623
Email: r@reformchem.com
Mobile: +86-13776910623
QQ: 3785839865
Wechat: chemical6666
Spot supply
Product Name: Diiodomethane Visit Supplier Webpage Request for quotationCAS: 75-11-6
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Diiodomethane Visit Supplier Webpage Request for quotationCAS: 75-11-6
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Product Name: Diiodomethane Request for quotation
CAS: 75-11-6
Tel: 0086-13605431940
Email: xuli678323@126.com
Mobile: +86-13605431940
QQ: 56860987
WhatsApp: 13605431940
CAS: 75-11-6
Tel: 0086-13605431940
Email: xuli678323@126.com
Mobile: +86-13605431940
QQ: 56860987
WhatsApp: 13605431940
Product Name: Diiodomethane Request for quotation
CAS: 75-11-6
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 75-11-6
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Featured Products
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: +86 18942506900
Email: lilyqu@chemoway.com
Mobile: +86 18942506900
QQ: 3182628472
Wechat: +86 18942506900
WhatsApp: +86 18942506900
Linkedin: +86 18942506900
Spot supply
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: 021-60556179
Email: 18721521379@163.com
Mobile: +86-18721521379
Wechat: 18721521379
Spot supply
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: 0513-66814854
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Spot supply
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: +86-17505207175
Email: 3787852685@qq.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Spot supply
Product Name: Diiodomethane Request for quotationCAS: 75-11-6
Tel: +86-13776910623
Email: r@reformchem.com
Mobile: +86-13776910623
QQ: 3785839865
Wechat: chemical6666
Spot supply
Product Name: Diiodomethane Visit Supplier Webpage Request for quotationCAS: 75-11-6
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Diiodomethane Visit Supplier Webpage Request for quotationCAS: 75-11-6
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Product Name: Diiodomethane Request for quotation
CAS: 75-11-6
Tel: 0086-13605431940
Email: xuli678323@126.com
Mobile: +86-13605431940
QQ: 56860987
WhatsApp: 13605431940
CAS: 75-11-6
Tel: 0086-13605431940
Email: xuli678323@126.com
Mobile: +86-13605431940
QQ: 56860987
WhatsApp: 13605431940
Product Name: Diiodomethane Request for quotation
CAS: 75-11-6
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 75-11-6
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
View History