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arduino nano boron,China price supplier

arduino nano boron
min.order / fob price
≥1 piece
Origin
Production Capacity
CategoryCocoa Ingredients
Update Time2020-11-13
company profile
Shanghai Ruizheng Chemical Technology Co., Ltd.
China
Contact: Mr.Mr. Kevin Dai
Tel: --
Number of Employees: 20 ~ 50
Business Type: Manufacture & Trade
product details
Origin:

 

Product Description

 

 

 

 

1 Physical and chemical properties:

1.1 Elementary symbol: B

1.2 Atomic weight: 10.81(on 1979 international atomic weight)

1.3 Melting point: 2300±2°C

1.4 Sublimation temperature: 2550°C

1.5 Specific gravity: 2.34-2.37

1.6 Solubility: It is undissolved in water, hydrochloric acid, ethanol and ethyl ether, but dissolvable in cold concentrated basic solution and decomposed, hydrogen is release at the same time. It can be oxidized by concentrated sulfuric acid or nitric acid to boric acid.

1.7 Properties: Boron is on a special place in the mid of metal and nonmetal on the periodic table of elements. Its chemical properties are more active because of very strong negative electricity, small atomic radius and centralized nuclear charge. It is stable in normal temperature, oxidized when heating to 300°C,and burned if heated to 700°C.It is tasteless and odorless. Its nonmetal property is similar to silicon. Boron can interact with oxygen, nitrogen, sulfur, halogen or carbon etc. It can be combined directly with many sorts of metals to form the boronic compounds. Moreover boron can be also reacted with organic compounds to generate some compounds, in which boron is directly joined to carbon, or oxygen exists between boron and carbon.

 

2. Technical indexes:

Item

1st grade

2nd grade

3rd grade

4th grade

Total Boron(B) content,%

≥95

≥92

≥90

≥88

Water soluble Boron(B) content %

≤0.45

≤0.55

≤0.6

≤0.9

PH value

6-6.5

6-6.5

6-6.5

6-6.5

Moisture content, %

0.5

0.5

0.5

0.5

Appearance(see with eyes)

Pale brown or brown-black amorphous powder

 

3. Uses: Boron is mainly used in metallurgy, electronics, medicine, ceramics, nulear industry and chemical industry etc, it is used in the form of compound or is added in some alloys as a addend. It can be used in smelting of some special alloy steels and as the gas remover for the melting steel, in the burn-entraining pole of burning-entraining tube in the electric industry, in the control stick of atomic reactor, and in the high-energy fuels for rocket. It is a important material foe making high-pure halogenated borons, also a material for making a variety of boronic compounds. A lot of noble and rare metals can be substituted and saved by it. Boron and its compounds can be also used as the catalyst for some organic chemical reactions and so on.

 

4. Safety notes: the product is considered toxic by inhaling and eating, to inhale it will have an effect on the central nervous system, to eat it will lead to stimulation of stomach and intestines canal and boron poisoning, to contact with skin or eyes will lead to slight stimulation, should wear safety  protective glasses, dustproof gauze mask, rubber gloves during handling it.

 

5 Package: It's vacuum-packed in the aluminium foil bags, in which has been put the plastic bag. Net weight 1 kg a bag.

 

6. Storage: It should be kept in a shady, ventilating and dry storehouse. Its shelf life is one year. The product can be still used if up to standard through retest after the specified date.

 

Packaging & Shipping

  

 

Shipping & Delivery 

Transit could be DHL,UPS,TNT,EMS,Fedex,and so on.

For mass orders, it will be delivered by air or sea.

Depending on your location, please allow 1-5 business days for your order to arrive.
For small order, please expect 3-7 days by UPS DHL EMS.
For mass order, please allow 5-8 days by Air, 15-30 days by Sea.

 

Our Services

We are specialist in this feild over 13 years and our facotry is GMP and ISO certified.

We test every batch of our product. We use HPLC, UV, GC and TLC and etc. 

We also cooperate with indepent third party lab such as SGS and etc..

We offer a 90-Day 100% Risk Free Guarantee for any orders. We will refund your money if our products is not as you required.

 

Company Information

 

We, Richest Group, has world-wide reputation, and cooperated with Sumsung, LG, Dow for several years,Established in 1996,Shanghai,CN.

 

Have 3 R&D centers for new product research and supply customer snythesis service,located in Shanghai,Ningbo and Wuhan,China

 

Have 2 plants for New products expansion production besides regularly production,located in Taixing and Ningbo,CN..

 

ISO9001   Certificated

 

ISO14001  Certificated

 

Our product fields

 

I.   Noble metal catalyst

 

II.  Organic intermediates

 

III. OLED/PLED intermediates

 

IV.  Pharmaceutical Intermediates/APIs

 

VI.   Food and feed additives

 

Offer 15000 products in stock besides regularly produced products

 

 

Overview of Factory

 

 

 

 

 

 

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