Product Description
Basic Characteristics
- Chemical Name: 1,3-Dihydroxyacetone
- Synonyms: DHA, 1,3-Dihydroxypropan-2-one
- Molecular Formula: C3H6O3
- Molecular Weight: 90.08 g/mol
- CAS Number: 96-26-4
- Structure: A symmetric ketose with the formula HOCH2COCH2OH, featuring two hydroxyl groups (−OH) and a central carbonyl group (C=O).
Physical Properties
Property |
Description |
Appearance |
White to off-white crystalline powder, highly hygroscopic (tends to deliquesce) |
Melting Point |
75-80 °C (pure monomer); decomposes on heating |
Solubility |
Highly soluble in water (>250 g/L at 20°C), miscible with ethanol, acetone, and ether |
Stability |
Stable at pH 6.0; exists as a dimer (1,4-dioxane crystal) at room temperature, converting to monomer in solution or when heated |
Chemical Reactivity
- Ketose Properties: Reacts with phenylhydrazine to form osazone; requires alkaline isomerization to aldose for silver mirror reaction (Tollens' reagent).
- Functional Group Reactions:
- Hydroxyl groups: Undergo esterification, etherification, and condensation reactions.
- Carbonyl group: Participates in addition reactions (e.g., with cyanide or alcohols) and reduction to glycerol.
- Decomposition: Dehydrates to pyruvaldehyde (CH3COCHO) or decomposes into formaldehyde and acetaldehyde under high temperature.
Applications
- Cosmetics Industry:
- Self-tanning Agent: Reacts with skin amino acids to form a temporary brown pigment (Mellard reaction), providing natural-looking tan without UV exposure.
- Moisturizer: Enhances skin hydration by forming a protective film.
- Antioxidant: Scavenges free radicals to prevent skin aging.
- Pharmaceuticals & Biomedicine:
- Antiviral Agent: Inhibits influenza virus infection in chicken embryos (51-100% efficacy) and serves as an intermediate for HIV drug synthesis.
- Therapeutic Use: Historically used to treat glycogen storage disorders in children.
- Food & Feed Additives:
- Flavor Enhancer: Imparts a sweet, mild taste in processed foods.
- Nutritional Supplement: Added to feeds for its low toxicity (LD50>16,000 mg/kg in rats) and metabolic benefits.
- Chemical Intermediates:
- Precursor for synthesizing pharmaceuticals, pesticides, and polymers (e.g., polyesters via esterification).
Quality Specifications
Parameter |
Typical Standards |
Purity |
≥98.0% (HPLC) |
Moisture |
≤0.40% |
Residue on Ignition |
≤0.40% |
Heavy Metals (as Pb) |
≤10 ppm |
Iron (as Fe) |
≤25 ppm |
pH (10% aqueous solution) |
4.0-6.0 |
Storage & Packaging
- Storage: Store in a cool, dry place away from moisture and light, at room temperature (2-25°C).
- Packaging: Typically in 25 kg fiber drums or vacuum-sealed bags to prevent hygroscopicity.
Safety Considerations
- Toxicity: Practically non-toxic (GRAS status in the U.S.), with low skin/eye irritation.
- Handling: Wear gloves and goggles to avoid prolonged contact; ensure good ventilation in production areas.
Product Parameters
Packaging & Shipping
Liquid products |
Drum of 5kg ,10 kg ,25 kg ,50 kg 200 kg ,250 kg . 1000 kg IBC drum. TANK with 20 tons ,25 tons . |
Solid products |
Bag of 1 kg ,2 kg ,5 kg ,25 kg ,500kg ,1000 kg . Drum of 25 kg and 50 kg. |
Packaging can be customized according to customer requirements.
Company Profile
Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.




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