Sodium mercury amalgam beads - Names and Identifiers
Sodium mercury amalgam beads - Physico-chemical Properties
Molecular Formula | HgNa
|
Molar Mass | 223.58 |
Melting Point | 61°C |
Appearance | beads |
Color | Gray |
Merck | 13,8646 |
Storage Condition | water-free area |
Stability | Stable, but extremely reactive. Highly flammable. Reacts violently with water, generating hydrogen. Incompatible with oxidizing agents, water, halogens, acids. |
Sodium mercury amalgam beads - Risk and Safety
Risk Codes | R11 - Highly Flammable
R14/15 -
R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed.
R33 - Danger of cumulative effects
R34 - Causes burns
R42/43 - May cause sensitization by inhalation and skin contact.
R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R48/23 -
R26 - Very Toxic by inhalation
R61 - May cause harm to the unborn child
R36/38 - Irritating to eyes and skin.
|
Safety Description | S16 - Keep away from sources of ignition.
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S61 - Avoid release to the environment. Refer to special instructions / safety data sheets.
S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.)
S28 - After contact with skin, wash immediately with plenty of soap-suds.
S53 - Avoid exposure - obtain special instructions before use.
S36/37 - Wear suitable protective clothing and gloves.
|
UN IDs | UN 3401 4.3/PG 1 |
WGK Germany | 3 |
HS Code | 28439010 |
Sodium mercury amalgam beads - Introduction
Sodium amalgam is a compound widely used in chemical laboratories and other fields. The following is a description of the nature, use, preparation and safety information of sodium amalgam:
Nature:
The chemical formula of sodium amalgam is NaHg2, which is an inorganic compound. It is gray-black or brown solid, with a strong metallic texture and a smelly sour taste. It is a solid at room temperature, but can be dissolved in liquid mercury when heated. Sodium amalgam is a strong reducing agent and can react with a variety of compounds.
Use:
Sodium amalgam has a variety of uses in chemical laboratories. It can be used as a reducing agent in organic synthesis reactions, such as hydrogenated ketones or hydrogenated olefins. In addition, it can also be used in the electrochemical precipitation process of certain metals, such as electroplating.
Preparation Method:
The preparation of sodium amalgam is mainly carried out by the direct reaction method. Metallic sodium and metallic mercury are usually reacted by heating under appropriate conditions to form a sodium amalgam. This preparation process needs to be carried out in a qualified laboratory, and the operating conditions need to be strictly controlled to ensure safety.
Safety Information:
Sodium amalgam is a toxic compound and should be handled with care. It releases harmful mercury vapor, so it is necessary to maintain a well-ventilated laboratory environment when handling sodium amalgam, and wear appropriate personal protective equipment, such as gloves, goggles and laboratory large airflow hood. In addition, sodium amalgam is also a flammable substance, should avoid contact with oxidants, and properly stored in a closed container, away from fire and heat sources. When disposing of sodium amalgam, it should be carried out in accordance with relevant regulations to ensure safety and environmental protection.
Last Update:2024-04-10 22:29:15