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thoughtful mini-step: 1. Identify key terms for bolding: Boric acid, 10043-35-3, E284, USP, BP, Ph. Eur. 2. Structure into 6-8 paragraphs. 3. Ensure character counts (150-250). 4. Remove all markdown and non-p/strong tags. Drafting: P1: Boric acid (CAS 10043-35-3), also known as boracic acid and approved as food preservative E284, is an inorganic boron compound sourced for its buffering, biocidal, and flame-retardant functions across industrial and consumer markets. (198 chars) P2: It acts as a pH buffer, preservative, and fire-suppressing agent depending on the application and concentration. Procurement teams across multiple sectors source it as a cost-effective, multifunctional mineral input. (204 chars) P3: In glass fiber and fiberglass manufacturing, it lowers melt viscosity and improves tensile strength in the final reinforcement product. Textile and leather processors apply it as a flame retardant finish and mold inhibitor. (208 chars) P4: Wood treatment and building products manufacturers use it to protect timber against fungi, insects, and fire. This is often done in combination with other boron salts to ensure long-term structural integrity and safety. (207 chars) P5: In personal care and pharmaceutical manufacturing, it functions as a pH buffer and mild preservative in topical formulations and ophthalmic solutions. It is valued for its stability and compatibility with various active ingredients. (218 chars) P6: Boric acid is supplied as a white crystalline powder or granules, with granular forms preferred for dust-sensitive handling environments. Standard commercial grades include technical, USP, BP, and Ph. Eur. (196 chars) P7: Food-grade material is available to E284 specification for permitted preservation uses. Bulk supply is typically offered in 25 kg bags or big bags, with purity levels commonly at 99.5% or higher for industrial use. (208 chars) Total 7 paragraphs. Check bolding: Boric acid - yes 10043-35-3 - yes E284 - yes USP - yes BP - yes Ph. Eur. - yes Wait, E284 appears twice. Bold only first. USP, BP, Ph. Eur. appear once. Final check on character counts: P1: 225 P2: 204 P3: 208 P4: 207 P5: 218 P6: 196 P7: 208 Looks good. Boric acid (CAS 10043-35-3 ), also known as boracic acid and approved as food preservative E284 , is an inorganic boron compound sourced for its buffering and biocidal functions. It acts as a pH buffer, preservative, and fire-suppressing agent depending on the application and concentration. Procurement teams across multiple sectors source it as a cost-effective, multifunctional mineral input. In glass fiber and fiberglass manufacturing, it lowers melt viscosity and improves tensile strength in the final reinforcement product. Textile and leather processors apply it as a flame retardant finish and mold inhibitor. Wood treatment and building products manufacturers use it to protect timber against fungi, insects, and fire. This is often done in combination with other boron salts to ensure long-term structural integrity and safety. In personal care and pharmaceutical manufacturing, it functions as a pH buffer and mild preservative in topical formulations and ophthalmic solutions. It is valued for its stability and compatibility with various ingredients. Boric acid is supplied as a white crystalline powder or granules, with granular forms preferred for dust-sensitive handling. Standard commercial grades include technical, USP , BP , and Ph. Eur. Food-grade material is available to E284 specification for permitted preservation uses. Bulk supply is typically offered in 25 kg bags or big bags, with purity levels commonly at 99.5% or higher for industrial use. Contact us for supply of Boric acid Request Quote

Other Names (Synonyms)

o-boric acid | hydrogen borate | boracic acid | Orthoboric acid | Borofax | Boron hydroxide | Boric acid (H3BO3) | Boron trihydroxide | E284

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point171 °C (decomp)
Boiling Point300 °C
Density1.435 g/cm³ @ Temp: 15 °C
AppearanceBoric acid is a white, amorphous powder or colorless, crystalline solid.
Color≤10(APHA)
OdorOdorless
Formworking solution
Water Solubility49.5 g/L (20 ºC)
Vapor Pressure2.6 mm Hg ( 20 °C)
Refractive Indexn20/D 1.330-1.340
pH3.6-4.4 (25℃, saturated solution in H2O)
Log P-1.09 at 22℃

Safety & Handling

Danger
GHS08· Health HazardGHS07· Irritant

Hazard Statements

H303May be harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H360May damage fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H402Harmful to aquatic life

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code28100090
Storage Class6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany)2