Sodium tetraborate pentahydrate manufacture CAS:1330-43-4

Sodium Borate  Executive standard: Q/YTY005-2011  Chemical name: Sodium tetraborate  CAS RN: 1330-43-4  1. Physical and chemical properties: 1.1 Molecular formula: Na2B4O7 1.2 Molecular weight: 201.22 1.3 Structure formula: 1.4 Melting point: 742.5℃ (for orthorhombic crystal); 664℃  (for orthorhombic crystal) 1.5 Density: 2.28 g/cm3 (for orthorhombic crystal); 2.75 g/cm3 (for orthorhombic crystal) 1.6 Properties: Its hygroscopicity is extremely strong. Easy dissolved in water, but slowly dissolved in methanol to form a concentration of 13-16% solution.  2. Technical indexes:  

<Span style="font-family: 'Times New Roman'; font-size: 10.5000pt;">Item	1st grade	2nd grade
Sodium Borate content, %	≥98.0	≥96.0
Diboron trioxide, %	66-68	66-68

   3. Application: Sodium borate has been mainly used in the manufacturing high-quality glass, optical glass, pottery and enamel glaze, detergent, bleaching agent, cleaning agents, flame retardant, rust inhibitor and Adhesive. It could also be used as the carrier of the lubricant used in metal wiredrawing, the stabilizer of refractory material and skeleton former, the coated fluxing agent in metallurgy, the retarder of cement and concrete, the buffer agent of pH value in water system and emulsifier of paraffin.   4. Safety instructions: Toxic and inflammation by ingestion, inhalation, eye and skin contact. Mouse, oral: LD50=1060mg/kg; Rat, oral: LD50=1200mg/kg. Rubber gloves, respirator and eye protection must be used during operations in case of skin contact, eyes contact.  5. Packing: Woven bag lined with plastic bag, net weight 25kg /bag.  6. Storage: Stored at cool, dry and ventilate place. The shelf life is 12 months after manufactured date. It is still available if the retest results of the properties are qualified after expire date. Sodium borate is a stable crystal under normal condition. When it is moistened, it will react with water, release heat and produce sodium borate decahydrate. Therefore, it should keep away from the dramatic humidity change environment to avoid caking. 7. Transportation: Avoid water, sun-baked and violent collision .Do not transport with strong oxidizers.   In addition: We are able to develop custom-made products according to the clients’ requests. Packaging & Shipping   Company Information One of the biggest professional chemical materials manufacturers and suppliers which has passed GJB9001B 2009, With over 48 years experience in this field, our main products include fine chemical products, polyurethane foam gap filling agent, PVB,chlorinated paraffin, aerosol cans,  military and civil products, which are widely used in construction, industry daily chemical, medicine and other fields.     Cooperative partner   Certificate   FAQ 1,What are your prices?       Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact us for further information. 2,Do you have a minimum order quantity?        Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website 3,Can you supply the relevant documentation?        Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.  4,What is the average lead time?         For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate your needs. In most cases we are able to do so. 5,What kinds of payment methods do you accept?         You can make the payment to our bank account, Western Union or PayPal:
         30% deposit in advance, 70% balance against the copy of B/L. 6,What is the product warranty?        We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone’s satisfaction 7,Do you guarantee safe and secure delivery of products?       Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge. 8,How about the shipping fees?       The shipping cost depends on the way you choose to get the goods. Express is normally the most quickest but also most expensive way. By seafreight is the best solution for big amounts. Exactly freight rates we can only give you if we know the details of amount, weight and way. Please contact us for further information.   Our Services Warm and Efficient Service 1.Forty years technique deposition  2.Military standard quality 3.Free sample 4.Small order is acceptable   Contact us  

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