Purity: ≥99.0% (HPLC)
Appearance: White to pale yellow crystalline powder/needles (no visible impurities)
Melting Point: 140–142 °C
Loss on Drying: ≤0.5%
Residue on Ignition: ≤0.1%
Heavy Metals: ≤10 ppm
Chloride (Cl?): ≤50 ppm
Sulfate (SO?2?): ≤50 ppm
Application 1: Organic Synthesis Intermediate — Key raw material for synthesizing dyes, pharmaceuticals, pesticides, and other fine chemicals; used in the preparation of m-aminobenzoic acid (via reduction reaction), which is an important intermediate for dyes and pharmaceutical synthesis.
Application 2: Pharmaceutical Industry — Precursor for synthesizing anti-inflammatory drugs, antipyretic drugs, and other pharmaceutical compounds; used in the production of analgesic and anti-rheumatic drugs.
Application 3: Dye Industry — Used in the synthesis of azo dyes, acid dyes, and disperse dyes; widely applied in textile dyeing and printing.
Application 4: Pesticide Industry — Intermediate for synthesizing herbicides, insecticides, and fungicides; improves the efficacy and stability of pesticides.
Application 5: Analytical Chemistry — Used as a reference standard and reagent for organic acid analysis; used in titration and qualitative/quantitative detection experiments.
- GHS Classification: Skin Irritation (Category 2), Eye Irritation (Category 2A), Acute Aquatic Toxicity (Category 3), Chronic Aquatic Toxicity (Category 3)
Signal Word: Warning
Hazard Statements: H315 (Causes skin irritation), H319 (Causes serious eye irritation), H402 (Harmful to aquatic life), H412 (Harmful to aquatic life with long lasting effects)
Precautionary Statements: P264 (Wash skin thoroughly after handling), P273 (Avoid release to the environment), P280 (Wear protective gloves/protective clothing/eye protection/face protection), P305+P351+P338 (If in eyes: rinse cautiously with water for several minutes; remove contact lenses if present and easy to do; continue rinsing), P332+P313 (If skin irritation occurs: get medical advice/attention)
Danger Codes: Xi (Irritant)
Risk Codes: R36/37/38 (Irritating to eyes, respiratory system and skin)
Safety Codes: S26 (In case of contact with eyes, rinse immediately with plenty of water and seek medical advice), S36 (Wear suitable protective clothing)
Toxicity: LD50 orally in Rat: 1960 mg/kg; LD50 dermally in Rabbit: >2000 mg/kg
Handling Precautions: Avoid dust formation and inhalation; avoid skin and eye contact; wear appropriate personal protective equipment (gloves, goggles, protective clothing); work in a well-ventilated area; do not eat, drink or smoke during operation; wash hands thoroughly after handling.
First-Aid Measures:
- Inhalation: Move to fresh air; give oxygen if breathing is difficult; consult a doctor if symptoms persist.
- Skin Contact: Remove contaminated clothing; wash skin with plenty of soap and water for at least 15 minutes; consult a doctor if irritation occurs.
- Eye Contact: Rinse eyes with pure water for at least 15 minutes, holding eyelids open; consult a doctor immediately.
- Ingestion: Rinse mouth with water; do not induce vomiting; call a doctor or poison control center immediately.
Firefighting Measures: Use dry chemical, carbon dioxide, or foam as extinguishing medium; wear self-contained breathing apparatus if necessary; harmful combustion products include carbon oxides, nitrogen oxides.
Spill Handling: Wear personal protective equipment; avoid dust inhalation; collect spilled material with dry tools; place in a sealed container for disposal; avoid release to soil, water sources, or sewers.
Storage Precautions: Store in a cool, dry, well-ventilated place; keep container tightly sealed; avoid contact with strong bases, oxidizing agents, and reducing agents; keep away from heat and open flames; store separately from food and feedstuffs; shelf life: 24 months under proper storage conditions.
Transportation: Non-hazardous goods for general transport; avoid moisture and high temperature during transportation; packaging: 25 kg/bag (paper bag or plastic bag lined with plastic film).
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