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Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid

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Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid

Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid
Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid
Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid

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Product Details:
Place of Origin: CHINA
Brand Name: YIXIN
Certification: ISO9001
Model Number: YXB-005
Payment & Shipping Terms:
Minimum Order Quantity: 1-20ton
Packaging Details: 25kg/bag
Delivery Time: 5-12days after recieved deposit
Payment Terms: L/C, T/T, Western Union
Supply Ability: 5000ton/per month

Pure Acidum Boricum Powder , Pyrotechnics Agriculture Boron Borax Boric Acid

Description
EINECS: 233-139-2 Color: White
Properties: Powder Purity: 99.5%
Packing: 25kg
High Light:

pure boric acid

,

organic boric acid

99.5% Acidum boricum powder H3BO3 CAS NO 10043-35-3 use for

pyrotechnics agriculture and recreational

►Description

 

    A white or colorless crystalline compound, H3BO3, either naturally

 

occurring or made from borax. It is used as anantiseptic and preservative,

 

and in cements, enamels, and cosmetics.

 

    Boric acid, also called hydrogen borate, boracic acid, orthoboric acid and

 

acidum boricum, is a weak, monobasic Lewis acid of boron, which is often

 

used as an antiseptic, insecticide, flame retardant, neutron absorber, or

 

precursor to other chemical compounds. It has the chemical formula H3BO3

 

(sometimes written B(OH)3), and exists in the form of colorless crystals or a

 

white powder that dissolves in water. When occurring as a mineral, it is called

 

sassolite.

 

Poruct name

 Acidum boricum

Molecular formula H3BO3
Molecular wight 61.83
Properties Colorless crystal or white powder
Purity 99.5%
UN number 1439


 

   Boric Acid has been used since the ancient Greeks as a method to fireproof cloth.

 

It is a mild astringent that kills bacteria and is used in eyewash to this day. It is also

 

used as a Roach Killer. In the late 1800’s and early 1900’s it was still used as a

 

food preservative until we found it was killing people and was banned from this use.

 

In the past Boric Acid was used as 3% in ointment for babies diaper rash. Then we

 

found this Boric Acid diaper rash cream made sick, caused permanent damage,

 

and killed human infants when applied to babies diaper rash.

 

In 1964 a researcher named Wong published some studies that Boric Acid was

 

much more toxic than once thought, but his work was largely ignored.

 

There are no studies that show Boric Acid is safe in mattresses. The industry

 

claims it’s safe because we have always done it that way, and don’t know of killing

 

anyone yet.

 

The industry claims Boric Acid has been ‘widely’ used in mattresses for over thirty

 

years. However, a cotton-batting manufacturer told us that none of his innerspring

 

mattress manufacturer customers use boric acid treated cotton. Since 1973 Boric

 

Acid treated cotton has been used in some mattresses to pass the cigarette ignition

 

law. However, simply putting a layer of polyester or foam under the ticking passes

 

the test without any added chemicals. Most manufacturers simply stopped putting

 

cotton in mattresses. Those who continued usually put a thin layer polyester or

 

foam quilted in the ticking and over the cotton batting rather than pay the 7% extra

 

cost of treated cotton. A very small number of the very cheapest mattresses may

 

have still used unquilted ticking with Boric Acid treated cotton directly under the

 

ticking.

 

 

 

►Specification

 

 

          Item

                                 Specification

H3BO3 99.50%
NH3 0.60%
SO4 0.30%
CL ≤0.15%
Fe ≤0.06%
Water insoluble ≤0.06%

 

 

    

  ► Molecular and crystal structure

 

 

  The three oxygen atoms form a trigonal planar geometry around the boron. The B-

 

O bond length is 136 pm and the O-H is 97 pm. The molecular point group is C3h.

 

Crystalline boric acid consists of layers of B(OH)3 molecules held together by

 

hydrogen bonds of length 272 pm. The distance between two adjacent layers is

 

318 pm.


    Based on mammalian median lethal dose (LD50) rating of 2,660 mg/kg body

 

mass, boric acid is only poisonous if taken internally or inhaled in large quantities.

 

The Fourteenth Edition of the Merck Index indicates that the LD50 of boric acid is

 

5.14 g/kg for oral dosages given to rats, and that 5 to 20 g/kg has produced death

 

in adult humans. For comparison's sake, the LD50 of salt is reported to be 3.75

 

g/kg in rats according to the Merck Index. According to the Agency for Toxic

 

Substances and Disease Registry, "The minimal lethal dose of ingested boron (as

 

boric acid) was reported to be 2–3 g in infants, 5–6 g in children, and 15–20 g in

 

adults. However, a review of 784 human poisonings with boric acid (10–88 g)

 

reported no fatalities, with 88% of cases being asymptomatic."Toxicology

 

Long-term exposure to boric acid may be of more concern, causing kidney damage

 

and eventually kidney failure (see links below). Although it does not appear to be

 

carcinogenic, studies in dogs have reported testicular atrophy after exposure to 32

 

mg/kg bw/day for 90 days. This level is far lower than the LD50.

 

    According to the boric acid IUCLID Dataset published by the European

 

Commission, boric acid in high doses shows significant developmental toxicity and

 

teratogenicity in rabbit, rat, and mouse fetuses as well as cardiovascular defects,

 

skeletal variations, and mild kidney lesions. As a consequence in the 30th ATP to

 

EU directive 67/548/EEC of August 2008, the European Commission decided to

 

amend its classification as reprotoxic category 2, and to apply the risk phrases R60

 

(may impair fertility) and R61 (may cause harm to the unborn child).

 

      At a 2010 European Diagnostics Manufacturing Association (EDMA) Meeting,

 

several new additions to the Substance of Very High Concern (SVHC) candidate

 

list in relation to the Registration, Evaluation, Authorisation and Restriction of

 

Chemicals Regulations 2007 (REACH) were discussed. Following the registration

 

and review completed as part of REACH, the classification of Boric Acid CAS

 

10043-35-3 / 11113-50-1 is listed from 1 December 2010 is H360FD (May damage

 

fertility. May damage the unborn child.)

 

 

 

 

 ►Application in Industry

 

 

Pyrotechnics

 

 

Boron is used in pyrotechnics to prevent the amide-forming reaction between

 

aluminum and nitrates. A small amount of boric acid is added to the composition to

 

neutralize alkaline amides that can react with the aluminum.Boric acid can be used

 

as a colorant to make fire green. For example, when dissolved in methanol it is

 

popularly used by fire jugglers and fire spinners to create a deep green flame.

 

Agriculture

 

Boric acid is used to treat or prevent boron deficiencies in plants. It is also used in

 

preservation of grains such as rice and wheat.

 

Recreational

 

For the game of carrom, boric acid is sprinkled onto the board of play to act as a

 

dry lubricant to increase the speed of the pieces when struck.

Contact Details
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