High Quality Powder Prices Boric Acid 99.5%

Model NO.: Boric Acid Grade Standard: Industrial Grade Specification: ISO Appearance: Powder Trademark: Qingxin Origin: Shandong China High quality powder prices boric acid 99.5% Boric acid, also called boracic acid or orthoboric acid or acidum boricum, is a weak acid often used as an antiseptic, insecticide, flame retardant and a precursor of other chemical compounds. White powder of scaled crystal, feeling greasy, odorless and tasteless, soluble in water, alcohol, glycerol ether and volatile oil, the water solution indicating weak acidity. when heating to 70-100ºC, hydro-extracting gently to change into meta-boric acid; 150-160ºC, as pyro-boric acid:300ºC, as boric anhydride(B2O3). Cas.no.: 10043-35-3/11113-50-1 Molecular formular: H3BO3 Molecular weight: 61.83 EINECS: 233-139-2/234-343-4 Melting point: 169 centigrade Boiling point: 300 centigrade Water solubility: 49.5g/l (20centigrade) Density: 1.435  Appearance: White crystalline powder. Specifications

(H3BO3)≥	98%		99.5%		99.9%
Color	White	White	White	White	White
Appearance	Granular	Powder	Granular	Powder	Powder
Size	2-4 mm	60-80 mesh	2-4 mm	60-80 mesh	60-80 mesh
B (%) ≥	17±0.1	17±0.1	17.5±0.1	17.5±0.1	17.6±0.1
B2O3 (%) ≥	55.2±0.1	55.2±0.1	56.1±0.1	56.1±0.1	56.3±0.1
SO42- (%)≤	0.035		0.0005		0.0002
Cl- (%)≤	0.0018		0.0001		0.0001
Fe (%) ≤	0.0006		0.0002		0.0001
Heavy metals (Pb) % ≤	0.0008		0.0002		0.0001
Water insoluble (%) ≤	0.01		0.005		0.001
Packing	25kg, 50kg,1000kg plastic-lined plastic woven bags (please further notice if need pallet or other packing)
Use	Glass ceramic industry, pharmaceutical industry, metallurgy industry,leather Preservatives, pesticides, fertilizer ect.

Use:  Glass and glass fiber,Enamel and ceramic,Nuclear industry,Pesticides, fertilizers, electroplating, paint, leather, medicine ect.

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