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 |
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 |
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 |
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.
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.
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.