industrial additive Sodium Borate/borax anhydrous/Na2B4O7 for making pottery and porcelain

    Sodium borateExecutive standard:Enterprise standardEnglish name:Sodium borateChemical name: Sodium tetraborateCAS RN:1330-43-4 Product Description Physical and chemical properties:                                                                                     1.1 Molecule formula:Na2B4O71.2 Molecule weight:201.221.3 Appearance: white powder 1.4 Melting point: 742.5°C(for orthorhombic crystal A)664°C  (for orthorhombic crystal B)1.5 Density: 2.28 (A orthorhombic crystal)  (B orthorhombic crystal)1.6 Properties: Its hygroscopicity is extremely strong. It is dissolved in water. It can be slowly dissolved in methanol and formed a solution of 13-16% concentration Uses: Sodium Borate is mainly used in the manufacturing high quality glass, optical glass, glaze of pottery and porcelain, glaze of enamel, detergent, bleaching agent, cleaning agents, flame retardant, rust inhibitor and caking agent. .  Technique Indexes: 

<Span style="line-height: 20px; font-family: arial, helvetica, sans-serif; font-size: 14px;">Items	Decahydrate	Pentahydrate
B2O3 Content, %≥	34.8	48.6
Sodium Carbonate %≤	0.20	0.20
Sodium sulphate %≤	0.10	0.01
Matter insoluble in water %≤	0.04	0.015
Sodium chloride ≤	0.05	0.0067
Iron %≤	0.002	0.0025

  Packaging & Shipping Safety description:The product is harmful. It will harm body’s health by swallowing, breathing in, eyes contacting, skin contacting, eye contacting will lead to irritation. Mouse oral: LD 50=1060mg/kg; rat oral: LD 50=1200mg/kg. Wear safety-protective glasses dust proof gauze musk, rubber gloves during handling it. Package: It is packed in woven bag, in which should be put two strata of plastic bags, the net weight is 25kg a bag. Storage:It should be stored in a shady, ventilating and dry storehouse. Its shelf life is one year. It can be still used if up to standard through retest after the specified date under normal storage condition, sodium borate is a stable crystal, and can’t lead to chemical change. If it was moistened it would react with water and release trace heat and result in sodium borate with ten crystal waters so that should properly take care of it, can’t expose it in moist environment or environment of very big change in temperature and humidity, if not it will agglomerate. Therefore it is necessary to ensure a well package. Transportation:Should avoid rain drenched, moistened, and can’t take mixed transporting with strong oxidants during transportation.   Company Information FAQ1.Why  choose us?We are the manufacturer with more than 40 years history. we can supply one-stop service from sample ,development and research, order, delivery, after-sale service2.What is ur payment term?T/T in advance3.Delivery time?ASAP after your payment4.Are u manufacturer?Yes,we are manufacturer5.How are  your products? We have four word-class R&D bases  and provide you products with high quality and competitive price.contact us 

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Product Categories : Boron product series