CITRIC ACID-1-HYDRATE
Trisodium citrate dihydrate
CAS: 6132-04-3
Molecular Formula: C6H9Na3O9
CITRIC ACID-1-HYDRATE - Names and Identifiers
| Name | Trisodium citrate dihydrate |
| Synonyms | ANTI-BABOON IGM, BIOTIN BETA-HYDROXY-TRICARBOXYLIC ACID MONOHYDRATE HYDROXYTRICARBALLYLIC ACID MONOHYDRATE CITRIC ACID NA3-SALT 2H2O CITRIC ACID H2O CITRIC ACID TRISODIUM SALT DIHYDRATE CITRIC ACID, 3NA, DIHYDRATE CITRIC ACID-1-HYDRATE |
| CAS | 6132-04-3 |
| EINECS | 612-118-5 |
| InChIKey | NLJMYIDDQXHKNR-UHFFFAOYSA-K |
CITRIC ACID-1-HYDRATE - Physico-chemical Properties
| Molecular Formula | C6H9Na3O9 |
| Molar Mass | 294.1 |
| Density | 1.76 |
| Melting Point | >300°C(lit.) |
| Flash Point | 173.9 °C |
| Water Solubility | 720 g/L (25 ºC) |
| Solubility | H2O: 100mg/mL |
| Appearance | powder |
| Color | white |
| Odor | Odorless |
| Maximum wavelength(λmax) | λ: 260 nm Amax: 0.01λ: 280 nm Amax: 0.01 |
| Merck | 14,8602 |
| BRN | 6104939 |
| PH | 7.0-9.0 (25℃, 50mg/mL in H2O) |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stable. Incompatible with bases, reducing agents, oxidizing agents. |
CITRIC ACID-1-HYDRATE - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 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. S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. |
| WGK Germany | 1 |
| RTECS | GE7810000 |
| TSCA | Yes |
| HS Code | 2918 15 00 |
| Toxicity | LD50 orally in Rabbit: > 8000 mg/kg |
CITRIC ACID-1-HYDRATE - Introduction
Sodium citrate dihydrate (Na2C6H6O7 · 2H2O) is a common organic salt commonly used in chemical laboratories and the food industry. The following is a description of the nature, use, preparation and safety information of sodium citrate dihydrate:
1. Nature:
-Appearance: Sodium citrate dihydrate is colorless crystals or white particles, odorless and a little salty.
-Solubility: It is miscible with solvents such as water and ethanol, but almost insoluble in ether.
-Stability: Sodium citrate dihydrate is relatively stable, but it will decompose at high temperatures.
2. Use:
-Food industry: Sodium citrate dihydrate is a common food additive used for flavoring agents, sour agents and antioxidants.
-Chemical Laboratory: it is used for the preparation of buffer solution, adjust the acid-base situation, and as a coordination reagent.
-Pharmaceutical field: In certain pharmaceutical preparations, sodium citrate dihydrate can be used as an excipient.
3. Preparation method:
Sodium citrate dihydrate can be prepared by reacting citric acid with sodium hydroxide. First, an appropriate amount of citric acid was dissolved in water, and then an appropriate amount of sodium hydroxide solution was added and stirred until the reaction was complete. Finally, the solution is crystallized or concentrated to obtain sodium citrate dihydrate.
4. Safety Information:
-Sodium citrate dihydrate is considered relatively safe for general use, but care should still be taken to avoid direct contact with eyes and skin.
-use should be careful to avoid mixing with strong acids and oxidants to prevent dangerous reactions.
-Wear appropriate protective equipment such as gloves and glasses during handling.
-If splashed into eyes or skin, rinse immediately with plenty of water and seek medical treatment.
1. Nature:
-Appearance: Sodium citrate dihydrate is colorless crystals or white particles, odorless and a little salty.
-Solubility: It is miscible with solvents such as water and ethanol, but almost insoluble in ether.
-Stability: Sodium citrate dihydrate is relatively stable, but it will decompose at high temperatures.
2. Use:
-Food industry: Sodium citrate dihydrate is a common food additive used for flavoring agents, sour agents and antioxidants.
-Chemical Laboratory: it is used for the preparation of buffer solution, adjust the acid-base situation, and as a coordination reagent.
-Pharmaceutical field: In certain pharmaceutical preparations, sodium citrate dihydrate can be used as an excipient.
3. Preparation method:
Sodium citrate dihydrate can be prepared by reacting citric acid with sodium hydroxide. First, an appropriate amount of citric acid was dissolved in water, and then an appropriate amount of sodium hydroxide solution was added and stirred until the reaction was complete. Finally, the solution is crystallized or concentrated to obtain sodium citrate dihydrate.
4. Safety Information:
-Sodium citrate dihydrate is considered relatively safe for general use, but care should still be taken to avoid direct contact with eyes and skin.
-use should be careful to avoid mixing with strong acids and oxidants to prevent dangerous reactions.
-Wear appropriate protective equipment such as gloves and glasses during handling.
-If splashed into eyes or skin, rinse immediately with plenty of water and seek medical treatment.
Last Update：2024-04-09 21:01:54
