Anhydrous Citric Acid
CAS No.: 77-92-9
Molecular Formula: C6H8O7
Molecular weight: 192.12




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Product Description
Ammonium chloride is a white crystalline powder, soluble in water and slightly acidic. It is widely used in fertilizers, battery electrolytes, metal soldering fluxes, medicine, dyes and chemical synthesis.
Chemical Properties
| Property | Value |
| Melting point | 340 °C (subl.) (lit.) |
| Boiling point | 100 °C at 750 mm Hg |
| Bulk density | 600-900 kg/m³ |
| Density | 1.52 |
| Vapor density | 1.9 (vs air) |
| Vapor pressure | 1 mm Hg (160.4 °C) |
| Refractive index | 1.642 |
| FEMA | 4494 | AMMONIA (ALSO INCLUDES AMMONIUM CHLORIDE) |
| Storage condition | Store at +5°C to +30°C |
| Solubility | H₂O: 1 M at 20 °C, clear, colorless |
| Acid dissociation constant (pKa) | 9.25 (at 20 °C) |
| Form | Solid |
| Color | White |
| Specific gravity | 1.53 |
| pH value | 4.7 (200 g/L, H₂O, 25°C) (External MSDS) |
| Odor | Odorless |
| Flavor type | Ammoniacal |
| Water solubility | Soluble |
| Thermal conductivity | 2.51 W/(m·K) |
| Sensitivity | Hygroscopic |
| Wavelength maximum (λ_max) | λ: 260 nm, Amax: ≤0.021 λ: 280 nm, Amax: ≤0.019 |
| Merck | 14.509 |
| BRN | 4371014 |
| Dielectric constant | 7 (0.0°C) |
| Exposure limit | ACGIH: TWA 10 mg/m³; STEL 20 mg/m³ NIOSH: TWA 10 mg/m³; STEL 20 mg/m³ |
| Stability | Stable. Incompatible with strong acids, strong bases. |
| Cosmetic ingredient function | BUFFERING VISCOSITY CONTROLLING FRAGRANCE |
| InChI | 1S/CIH.H3N/h1H;1H3 |
| InChIKey | NLXLAEXVIDQMFP-UHFFFAOYSA-N |
| SMILES | N.C.I |
| CAS database | 12125-02-9 (CAS DataBase Reference) |
| NIST chemical substance information | Ammonium chloride (12125-02-9) |
| EPA chemical substance information | Ammonium chloride (12125-02-9) |
Safety Information
| Property | Value |
| Hazard symbol | Xn |
| Hazard class codes | 22-36-41-37/38 |
| Safety descriptions | 22-36-26 |
| Occupational exposure class | B |
| Occupational exposure limit | TWA: 10 mg/m³, STEL: 20 mg/m³ |
| UN dangerous goods number | UN 3077 9 / PGIII |
| WGK Germany | 1 |
| RTECS number | BP4550000 |
| Autoignition temperature | >400 °C |
| TSCA | TSCA listed |
| Hazard class | 9 |
| Packing group | III |
| HS code | 28271000 |
| Storage class | 13 - Non-combustible solids |
| Hazard class (category) | Acute toxicity, Category 4, Oral Eye irritation, Category 2 |
| Hazardous substances data | 12125-02-9 (Hazardous Substances Data) |
| Toxicity | LD50 in rats (mg/kg): 30 i.m. (Boyd, Seymour); LD50 in rats (mg/kg): 1650 orally (Smeets) |
Product Usage
Ammonium Chloride is a versatile inorganic salt with critical applications in agriculture, industry, and medicine. In agriculture, it serves as an efficient nitrogen fertilizer, particularly suitable for crops like rice and wheat, where it promotes protein synthesis and enhances lodging resistance. In the industrial sector, it acts as an electrolyte in dry cell batteries and functions as a flux in metal welding and galvanizing processes, clearing oxides from metal surfaces to ensure high-quality bonding. Additionally, it is widely utilized in textile dyeing, leather tanning, and as a food additive (e.g., as a yeast nutrient in bread making). In pharmacy, it is commonly used as an expectorant to help thin mucus for easier expulsion.
Factory Showcase
Shipping and Transportation
Delivery Time
Inventory 2-3 working days New manufacturing 7-10 working days
Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!
FAQ
Q1: What international standards do your products and services comply with?
A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.
Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.
Q3: Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.
Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).
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