| CAS No.: | 11113-501 |
|---|---|
| Formula: | Bh3o3 |
| EINECS: | 234-343-4 |
| Appearance: | Powder |
| Grade Standard: | Agriculture Grade |
| Acid Strength: | Weak Acid |
| Samples: |
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| Customization: |
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Audited Supplier Boric acid is actually a hydrate of boron oxide(B2O3H2O), which is a white powder crystal o a sealy glossy crystal on a tri-oblique axis , feel soapy if touched,and it is odouless. Soluble in water,alcohol. glycerin, others and esscntial oils, odorless,slightly sour and bitter after taste. Exposure does not change in the air, and can volatilize with water vapor.When heated to 101-105 °C, a molecule of water is lost then form metaboric acid; when heated for a long time at 104-160°C, it is converted into pyroboric acid,and anhydrous is formed at higher temperaturc. The PH of boric acid is 5.1.1g boric acid can be dissolved in18ml cold water,4ml boiling water,18ml cold ethanol, 6ml boiling ethanol and 4ml glyeerol. The solubility in water can be increased with the addition of hy-drochloric acid, citric acid and tartaric acid.Relative density: 1.4347, melting point 184ºC(decomposition), boiling point 300'C.
It is chemical used for making ceramics, glazes, cements, wicks, food preservatives, special glasses; Also for leather dressing compounds for preparation of hides prior to tanning; Artificial precious stones; As flux in metallurgical industry, fire-proofing compositions and linings for safes; Also for pigments; Enamel paints, paper glazes, cosmetics, soaps, textiles, medicines, etc.
| 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% |
Widely used in the glass industry, it can improve the heat resistance and transparency of glass products, increase mechanical strength, shorten melting time, and can also be used as a preservative and disinfectant.
Q2: How to start orders?
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Q3: How about your payment methods?
A: T/T, Western Union and Money Gram can be accepted.
Q4: How to confirm the Product Quality before placing orders?
A: You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests, we will manufacture the products according to your requests.
Q5: How about the package?
A: Usually we provide the package as 25kg bag/carton/drum or as your requirement.
Q6: What's your MOQ?
A: Our MOQ is 5 tons for sea shipment.
Q7: How about delivery lead time?
A: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q8: How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your payment.
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