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China p-Hydroxybenzoic acid - China Supplier
China p-Hydroxybenzoic acid - China Supplier

p-Hydroxybenzoic acid

Price:Negotiable
Industry Category: Chemicals/Carboxylic Acids/Benzoic Acid
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Description
Additional Information

p-Hydroxybenzoic Acid

Product Number: SX1001

Chemical Name: p-Hydroxybenzoic Acid
Trade Name: p-Hydroxybenzoic Acid
Molecular Formula: C7H6O3
Molecular Weight: 138.12
CAS#: 99-96-7
Physical and Chemical Properties: This product is a white crystalline powder, odorless, tasteless, with a numbing sensation when tasted. It is easily soluble in hot water, alcohol, ether, and acetone; slightly soluble in cold water and benzene; insoluble in carbon disulfide. Soluble in 125 parts of cold water; relative density 1.46.

Product Quality Standards

Item
Specification
Polymer Grade
Industrial Grade
Appearance
White crystalline powder
White crystalline powder
Content (dry basis) % ≥
99.6
99.0
Melting Point ℃
214-217
212-216
Odor
Odorless
Odorless
Solubility
Clear and transparent
Clear and transparent
Loss on Drying % ≤
0.20
0.50
Color (Pt-Co) ≤
10
40
Ash Content % ≤
0.02
0.15
Sulfate (as SO42-) % ≤
0.01
0.05
Chloride (as Cl?) % ≤
0.005
0.02
Phenol % ≤
0.01
0.10
Salicylic Acid % ≤
0.02
0.10
4-Hydroxyisophthalic Acid ppm ≤
500
/
Methanol Insolubles ppm ≤
50
/
Potassium (K?) ppm
5
/
Sodium (Na?) ppm ≤
5
/
Iron (Fe) ppm ≤
5
/
Calcium + Magnesium (Ca2? + Mg2?) ppm ≤
10
/

Applications: This product can be used as a preservative, dye, pharmaceutical and injection molding intermediate. It can be esterified with alcohols to produce parabens, and is also a main raw material for high-performance liquid crystal polymers and pesticide intermediates.
Packaging: This product is packaged with inner double-layer plastic and outer woven bags, net weight 25 kg per bag; or in PP bags, net weight 500 kg/bag or 1000 kg/bag.
*Special requirements can be negotiated separately.

Industry Category: Chemicals/Carboxylic Acids/Benzoic Acid
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