High Quality Boric Acid H3bo3 CAS 10043-35- 3
Boric Acid3
CAS No.: 10043-35-3
Formula: H3bo3
EINECS: 233-139-2
Classification: Boric Acid
Appearance: Flakes or Powder or Block
Grade Standard: Industrial Grade
Formula: H3bo3
EINECS: 233-139-2
Classification: Boric Acid
Appearance: Flakes or Powder or Block
Grade Standard: Industrial Grade
Delivery
FOB
minimum order
10 metric tons
Supply Ability
50000mtmetric tons / Year
Country of Origin
China
Stock Time
10Day
Quantity
US $900.00 - US $1250.00 / metric tons
White crystalline powder or colorless phosphorus flakes with a pearl-luster or hexagonal triclinic crystals. Tasteless, slightly bitter taste. The melting point is about 171ºC. Soluble in water, alcohol, glycerin, ethers and essential oils, the aqueous solution is weakly acidic. The solubility of boric acid in water increases with the increase of temperature, and can volatilize with water vapor. The pH of aqueous solution is 5.1 in Imol/L. 19 can be dissolved in 18mL cold water, 4mL boiling water, 18mL cold alcohol, 6mL boiling alcohol or 4mL glycerin. It has a smooth feeling in contact with the skin and no change in the air. When heated to 100 ~ 105ºC, a molecule of water is lost to form metaboric acid, and when heated for a long time at 104 ~ 160ºC, it is transformed into pyroboric acid, and at higher temperatures, anhydrous matter is formed, and boric anhydride (B2-03) is formed at 300ºC.
| Item | Index | |
| First grade | Second grade | |
| Boric acid(%) | ≥99.5% | ≥96.5% |
| Water insolubles(%) | ≤0.05% | ≤0.15% |
| Sulfate(SO4)(%) | ≤0.10% | ≤0.40% |
| Chloride(CL)(%) | ≤0.01% | ≤0.05% |
| Iron(Fe)(%) | ≤0.003% | ≤0.005% |
| Melting point | 160 °C (dec.) (lit.) |
| Boiling point | 219-220 °C (9.7513 mmHg) |
| density | 1.440 g/cm3 |
| vapor pressure | 2.6 mm Hg ( 20 °C) |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: soluble |
| pka | 8.91±0.43(Predicted) |
| form | working solution |
| Specific Gravity | 1.435 |
1.Used in glass, enamel, ceramics, medicine, metallurgy, leather, dye, pesticide, fertilizer, textile and other industries;
2.Used for chromatographic analysis reagent, also used for the preparation of buffering agent;
A large number of glass (optical glass, acid-resistant glass, heat-resistant glass, insulating materials with glass fiber) industry, can improve the heat resistance, transparency of glass products, improve mechanical strength, shorten the melting time.
3.In enamel, ceramic industry, to enhance the luster and fastness of enamel products, is also one of the ingredients of glazes and pigments. Boron steel can be used as additive and cosolvent in metallurgical industry, especially boron steel with high hardness and good rolling ductility, which can replace nickel steel. Boric acid is antiseptic and can be used as a preservative, such as wood. It is used in metal welding, leather, photography and other industries, as well as in the manufacture of dyes, heat and fire resistant fabrics, artificial gems, capacitors and cosmetics.
4.It can also be used as insecticide and catalyst. In agriculture, boron micronutrient fertilizers are effective for many crops and can improve crop quality and yield.
2.Used for chromatographic analysis reagent, also used for the preparation of buffering agent;
A large number of glass (optical glass, acid-resistant glass, heat-resistant glass, insulating materials with glass fiber) industry, can improve the heat resistance, transparency of glass products, improve mechanical strength, shorten the melting time.
3.In enamel, ceramic industry, to enhance the luster and fastness of enamel products, is also one of the ingredients of glazes and pigments. Boron steel can be used as additive and cosolvent in metallurgical industry, especially boron steel with high hardness and good rolling ductility, which can replace nickel steel. Boric acid is antiseptic and can be used as a preservative, such as wood. It is used in metal welding, leather, photography and other industries, as well as in the manufacture of dyes, heat and fire resistant fabrics, artificial gems, capacitors and cosmetics.
4.It can also be used as insecticide and catalyst. In agriculture, boron micronutrient fertilizers are effective for many crops and can improve crop quality and yield.
1.Packaging: 25KG/ Plastic woven bag ,25 tons/20GP, ascustomer'requirment.
2.Delivery Detail: Prompt delivery by Sea transport after payment confirmed.
2.Delivery Detail: Prompt delivery by Sea transport after payment confirmed.
