99% Pure Boric Acid, Cheap, Free Samples, Factory Futures

• CAS No.: 10043-35-3
• Formula: H3bo
• EINECS: 603-411-9
• Classification: Boric Acid
• Appearance: Powder
• Grade Standard: Agriculture Grade
• Model NO.: H3BO3
• Acid Strength: Weak Acid
• Kind: Inorganic Acid
• Quality: Food Grade
• Packaging: Paper Bag
• Element: Monobasic Acid
• Oxidation: Non Oxidizing Acid
• Volatility: Non-Volatile
• Stability: Stabilized Acid
• Extent of Reaction: Stable
• Period of Validity: 2024.3.9
• Hazard Characterization: Harmless
• Purity: 99%
• Transport Package: 25kg/Bag
• Specification: 25kg/bag
• Trademark: Harbor Trade Chemical
• Origin: China
• HS Code: 2810002000
• Production Capacity: 50000ton/Year

Product Description

The following table provides more detailed information :

White powdery crystal or triclinic scaly crystal with gloss. [1] It has a smooth feel, no smell. Soluble in water, alcohol, glycerin, ethers and essential oils. No smell. The taste is slightly sour and bitter with a sweet edge. Slippery in contact with skin. No change in exposure to air. Can evaporate with water vapor. When heated to 100~105 ° C, a molecule of water is lost to form metaborate, which is heated for a long time at 104~160 ° C and transformed into pyroboric acid, and higher temperatures form anhydrous matter. 0.1mol/L aqueous solution has a pH of 5.1. 1g is soluble in 18ml cold water, 4ml boiling water, 18ml cold ethanol, 6ml boiling ethanol and 4ml glycerol. The solubility in water can be increased with the addition of hydrochloric acid, citric acid and tartaric acid. The relative density is 1.4347. Melting point 184ºC(decomposition). Boiling point 300ºC. Median lethal dose (rats, oral)5.14G/kG. It's stimulating. It is toxic and can cause death when taken orally. The minimum lethal dose for adults is 640mg/kg orally, 8.6g/kg on the skin and 29mg/kg intravenously. Infants take 200mg/kg orally. The maximum allowable concentration in the air is 10mg/m3.