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Phosphoric Acid, CAS 7664-38-2 | 75%,85%, Food & Industrial Grade Acidulant

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CAS No.:

7664-38-2

Grade:

Food Grade and tech grade

Content:

85%

Port:

shanghai

Packaging:

25KGS/BAG

Sample Available:

Yes

Price valid (until):

2024-01-29

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PREMIUM INGREDIENT CO.,LTD

Company Type:

Manufactory

Location:

United Kingdom

Payment Terms:

TT against copy of documents,L/C

Average Lead Time:

80 days

Qualification:

Main Products:

l-lysine monohydrochloride,dl-methionine,n-acetyl-l-cysteine,l-methionine,glycine,l-cysteine hcl monohydrate

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Product Details
Seller Information
Inquiry History

Description

Product Detail

Basic Information

Item	Details
Product Name	Phosphoric Acid
Synonym	Orthophosphoric Acid
CAS No.	7664-38-2
EINECS No.	231-633-2
Molecular Formula	H₃PO₄
Molecular Weight	97.99
Appearance	Colorless, transparent viscous liquid
Concentration Specification	75%, 85%
Grade Classification	Food Grade, Industrial Grade
Density (85%, 20℃)	1.685 g/mL
Density (75%, 20℃)	1.570 g/mL
Executive Standard	Food Grade: FCC, GB 3149; Industrial Grade: GB/T 2091
Certifications	ISO9001, HALAL, KOSHER
Heavy Metal (Pb)	≤ 0.001%
Fluoride Content	Compliant with international standard limits

Product Overview

Phosphoric Acid (Orthophosphoric Acid) is a colorless, transparent, viscous inorganic liquid acid, available in two mainstream concentrations of 75% and 85%, covering complete specifications of food grade and industrial grade. As a core phosphate raw material, it is widely used as a high-efficiency food acidulant and pH stabilizer in beverage and food processing, and acts as a key industrial intermediate for phosphate synthesis, fertilizer manufacturing, water treatment and metal surface treatment.

Character

Phosphoric Acid possesses stable chemical properties, high purity, and extremely low impurity content. It is non-volatile with mild and controllable acidity compared with other strong inorganic acids. Food grade specifications undergo strict purification processes, meeting global food safety certification standards for safe food additive application. Industrial grade features stable acidity and excellent chelating performance, suitable for mass industrial production. Dual concentrations of 75% and 85% fully adapt to diverse food processing and industrial manufacturing demands with consistent batch quality.

Main Functions

1.Food Acidulant & Flavor Optimizer — adjusts food and beverage acidity, optimizes taste balance and sensory flavor

2.pH Stabilizer — maintains stable pH value of finished products, inhibits bacterial growth and extends shelf life

3.Metal Chelating Agent — binds excess metal ions to prevent product oxidation, discoloration and deterioration

4.Phosphate Synthetic Intermediate — fundamental raw material for manufacturing various phosphate salt products

5.Industrial Pickling & Cleaning Agent — removes metal rust, oxide scale and surface impurities efficiently

6.Water Treatment Regulator — adjusts water pH, inhibits pipeline scaling and equipment corrosion

Applications

1.Food & Beverage Industry: Food grade 85% phosphoric acid is widely used in carbonated drinks, functional beverages, jams, candies and dairy products for acidity adjustment, flavor improvement and quality stabilization.

2.Phosphate & Fertilizer Manufacturing 75% and 85% industrial grade phosphoric acid serves as the primary raw material for producing sodium phosphate, potassium phosphate, ammonium phosphate and agricultural compound fertilizers.

3.Industrial Water Treatment Applied in circulating water, boiler water and industrial wastewater systems for pH regulation, scale inhibition and anti-corrosion treatment.

4.Metal Surface Treatment Used for metal pickling, rust removal, surface passivation and industrial equipment deep cleaning.

5.Fine Chemical Industry Applied in chemical synthesis, ceramic glaze processing and industrial fine cleaning scenarios.

Packaging & Storage

Packaging: 35L/200L plastic drum, 1000L IBC tank, ISO tank bulk shipment, customized packaging available

Storage: Store in cool, dry, ventilated warehouse, keep sealed, isolate from alkaline substances and strong oxidants

Shelf Life: 24 months under standard storage conditions

Specifications	Reference Standard
Colour ≤	20
Assay (as H3PO4 )% ≥	75.0-86.0
Arsenic (As)% ≤	0.00005
Heavy metals,as Pb% ≤	0.0005
Oxidable matter (asH3PO3)% ≤	0.012
Fluoride,as F% ≤	0.001

ECHEMI Editorial Reference

Phosphoric acid (H3PO4) is a colorless, odorless, and non-volatile liquid that is highly soluble in water. It is a weak acid with three acidic protons, making it useful in various chemical reactions. Phosphoric acid is known for its ability to act as an excellent acidifying agent and is widely used in industrial applications.

Certificates

Basic Info

Product Name:

Phosphoric acid

Other Name:

Phosphoric acid;Orthophosphoric acid;EVITs;WC-Reiniger;Sonac;Decon 4512;Kefo;3M Etching Liquid;C 134 (acid);C 434 (acid);C 134;C 434;Mikro Klene DF;K-etchant;SPA 2 (catalyst);SPA 2;TG 434;Ultra-Etch Gel;Uni-Etch;Ultraetch;Amberphos 54;HQ 54;Panavia Etching Agent;Conditioner 36;E 338;Total Etch;NSC 80804;Etchalite;Kerr Etchant;Y 11A06;Ultradent;K Etchant Gel;Acidum phosphoricum;Vococid;PC 400;SF 1;SF 1 (acid);28602-75-7;178560-73-1;959699-83-3;1021417-41-3;1053657-23-0;1196963-54-8;1643589-98-3;2055242-58-3

CAS No.:

7664-38-2

UN No.:

1805

Molecular Formula:

H3O4P

InChIKeys:

InChIKey=NBIIXXVUZAFLBC-UHFFFAOYSA-N

Molecular Weight:

97.99520

Exact Mass:

98.00

EC Number:

231-633-2

UNII:

E4GA8884NN

ICSC Number:

1008

NSC Number:

80804

UN Number:

1805|3453

DSSTox ID:

DTXSID5024263

NCI Thesaurus Code:

C47670

Color/Form:

Unstable orthorhombic crystals or clear syrupy liquid|Colorless, sparkling liquid or transparent, crystalline solid, depending on concentration and temperature. At 20 °C the 50% and 75% strengths are mobile liquids, the 85% is of syrupy consistency; the 100% acid is in the form of crystals.|Colorless viscous liquid|Thick, colorless crystalline solid [Note: Often used in an aqueous solution]

HScode:

2809201900

Categories:

Acidity Regulators

Characteristics

PSA:

87.57000

XLogP3:

-0.9286

Appearance:

Transparent liquid

Density:

1.834 g/cm³ @ Temp: 18 °C

Melting Point:

42.35 °C

Boiling Point:

158 °C(lit.)

Refractive Index:

n20/D 1.433

Water Solubility:

Miscible

Storage Conditions:

Storage Room low temperature ventilation drying ,Separate storage with H Pore forming agent、caustic soda

Vapor Pressure:

Vapour pressure, Pa at 25°C:

Vapor Density:

3.4 (vs air)

Toxicity:

ADI 0 to 70 mg / kg (total phosphate content in terms of phosphorus, FAO / WHO, 2001). GRAS (FDA, § 182.1073, 2000). LD501530mg / kg (rat, oral). In case of daily intake of 2 ~ 4 g, it can cause mild diarrhea. The amount of sour agent used as a cola drink is 0.02% to 0.06%.

Flammability characteristics:

Noncombustible Solid

Odor:

Odorless

Taste:

Acid taste

PH:

pH = 1.5 (0.1 N aqueous solution)

Dissociation Constants:

pK1: 2.15; pK2: 7.09; pK3: 12.32

Experimental Properties:

PH: 2.0-2.2 /DETERMINED IN 1% SOLN AND IN 10-50% SLURRIES OF INSOL COMPOUNDS/|IT FORMS 3 SERIES OF SALTS: PRIMARY PHOSPHATES; DIBASIC PHOSPHATES; AND TRIBASIC PHOSPHATES.|Easily supercooled into a glass; Heat of formation (crystalline): -306.2 Kcal/mol; Heat of solution: +2.79 Kcal/mol.|Acid containing about 88% orthophosphoric acid will frequently crystallize on prolonged cooling, forms hemihydrate; becomes anhydrous at 150 °C, gradually changes to pyrophosphoric acid at about 200 °C; above 300 °C, metaphosphoric acid; hot concentrated acid attacks porcelain and granite ware.|For more Other Experimental Properties (Complete) data for PHOSPHORIC ACID (9 total), please visit the HSDB record page.

Air and Water Reactions:

Soluble in water with small release of heat.

Reactive Group:

Acids, Weak

Reactivity Profile:

PHOSPHORIC ACID reacts exothermically with bases. May react with active metals, including such structural metals as aluminum and iron, to release hydrogen, a flammable gas. Can initiate the polymerization of certain classes of organic compounds. Reacts with cyanide compounds to release gaseous hydrogen cyanide. May generate flammable and/or toxic gases in contact with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and strong reducing agents. Forms explosive mixture with nitromethane. Reacts violently with sodium tetrahydroborate. In the presence of chlorides can corrode stainless steel to form explosive hydrogen gas. Emits toxic and irritating fumes of oxides of phosphorus when heated to decomposition [Lewis, 3rd ed., 1993, p. 1029].

Autoignition Temperature:

Not flammable (USCG, 1999)

Flammable Limits:

Noncombustible Solid

Corrosivity:

Corrosive to ferrous metals and alloys

See More Phosphoric acid Properties 

Hazard Identification

Classification of the substance or mixture

Skin corrosion, Sub-category 1B

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H314 Causes severe skin burns and eye damage
Prevention	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response	P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 Wash contaminated clothing before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P316 Get emergency medical help immediately. P321 Specific treatment (see ... on this label). P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage	P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO contact with incompatible materials: See Chemical Dangers Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Dry. Well closed. Separated from food and feedstuffs and incompatible materials. See Chemical Dangers. Ventilation along the floor.Store in cool, dry, well-ventilated location. Separate from alkalies and most metals.

See More Phosphoric acid Safety Data Sheet 

Seller Information

Business Type: Manufactory
Main Products: l-lysine monohydrochloride,dl-methionine,n-acetyl-l-cysteine,l-methionine,glycine,l-cysteine hcl monohydrate
Location: dongsheng road
Payment Terms: TT against copy of documents,L/C
Average lead Time: 80 days
Total Annual Revenue: $5 million-$10 million
Total Employees: 5-10
Year of Establishment: 2015

Premium Ingredient specializes in supplying and distributing food & feed amino acids, food additives and functional ingredients for more than a decade.

Our food additives portfolio covers phosphates, acidulants, preservatives, sweeteners, thickeners and leavening agents.

Our functional ingredients include vitamins, mineral products, botanical extracts, nutraceutical ingredients, functional fibers & bulking agents.

We serve over 100 clients across food & beverage, dietary supplement, sports nutrition, personal care, pharmaceutical and animal feed sectors, with products exported to dozens of countries worldwide. All our goods are sourced from top-tier Chinese manufacturers with proven expertise and complete management systems.

◆Amino Acids	◆ phosphates	◆ acidulants
◆ preservatives	◆ sweeteners	◆ functional fiber&bulking agent
◆ thickeners	◆ Leavening agents	◆ mineral products
◆ Botanical extracts	◆ vitamins	◆ nutritional products

Backed by over 10 years of industry experience, we provide one-stop-shop solutions combining high-grade products, prompt communication, on-time delivery and real-time market intelligence. Thanks to our long-term deep-rooted partnerships with source manufacturers, we can guarantee sufficient inventory, stable pricing and fast shipment.

Our third-party certifications include ISO9001, ISO14001, HACCP, HALAL, KOSHER, GMP, FAMI-QS and more. You can count on Premium Ingredient as your trusted global raw material supplier.

------------------------------------- Mission------------------------------------

Acting as a bridge between reliable Chinese manufacturers and global buyers, we carefully select partner factories with mature production capabilities and sound management systems. We deliver not only premium-quality raw materials, but also value-added services including market trend updates, supply chain risk alerts, product formulation consultation, consolidated sample shipment and full document support for import compliance. We timely forward overseas customers’ requirements to our partner factories to support product upgrading and achieve mutual growth.

-------------------------------------Our Quality------------------------------------

Our Quality

As a professional ingredient supplier, we do not operate manufacturing facilities. Instead, we build robust quality‑assurance workflows across our whole supply chain to safeguard consistent product performance for every shipment

Strict Supplier Due‑Diligence

Before entering any partnership, we carry out on-site factory visits and assess industry reputation, followed by multi-stage qualification reviews. We validate production qualifications, export track records, quality management systems and complete certification packages. New suppliers must pass sample evaluation, and only fully vetted top-tier factories are admitted to our approved supplier pool

Batch‑by‑batch Document Verification

For every order, we cross‑check factory‑issued test documents against agreed specifications including FCC, USP, EP, AJI, CP or your customized requirements. We will not forward documents to customers until key indicators are fully aligned with specifications. This step avoids inconsistent or mismatched documentation common in raw‑material trade.

Independent Third‑party Testing Coordination

Upon client request, we can arrange independent laboratory inspections from recognized third‑party institutions. We manage sample delivery, test protocol communication and report follow‑up to support your market compliance needs.

Quality Closure & Continuous Improvement

We keep traceable records for all delivered batches. If any quality concern arises, we act as your single point‑of‑contact to trace root causes with source factories, drive corrective actions and deliver practical resolution plans. Client feedback is systematically collected to optimize our supplier management and document‑review procedures.

We provide a comprehensive set of compliance documents to support your import and registration work. Our available documentation includes but is not limited to:

★ ISO Certification ★ Halal Certificate

★ Kosher Certificate ★ IP certificate

★ Haccp certificate ★ Allergens with Glutens

★ GRAS Statement ★ HACCP Program

★ BSE/TSE Statement ★ Certificate of Analysis

★ Country of Origin Certificate ★ Material Safety Data Sheet

★ Flow Chart (product processing) ★ Food Grade Certificate

★ Nutritional Information ★ GMO Statement

★ Specification Sheet

Inquiry History

224 Inquiries

Country	Product	Purchase Quantity	Date Posted
Vietnam	7664-38-2 Phosphoric Acid 85% Orthophosphoric Acid	52 MT	Nov 20, 2023
Germany	Buy Phosphoric Acid 85% Cas 7664-38-2 cheap price	5 MT	Nov 14, 2023
Egypt	Phosphoric Acid 85%	1 KG	Feb 13, 2026
India	Orthophosphoric Acid	25 MT	Mar 10, 2026
United States	Phosphoric AcidCAS NO.7664-38-2	10000 MT	Dec 29, 2023
Germany	Phosphoric acid	350 MT	Jun 11, 2024
Vietnam	Phosphoric Acid	26 MT	May 26, 2026
Vietnam	Phosphoric Acid 85% Food Grade	26 MT	May 22, 2026
Vietnam	Phosphoric Acid 85% Food Grade	26 MT	May 22, 2026
India	Phosphoric Acid / Ortho Phosphoric Acid 85%	50 KG	Sep 9, 2026
Vietnam	Phosphoric Acid 85% Food Grade	26 MT	May 22, 2026
Vietnam	Phosphoric Acid 85% Food Grade	26 MT	May 22, 2026
Vietnam	Phosphoric Acid 85%, food grade	26 MT	May 21, 2026
Vietnam	Phosphoric Acid 85%, food grade	26 MT	May 21, 2026
Vietnam	Phosphoric Acid 85%, food grade	26 MT	May 21, 2026
Indonesia	Phosphoric Acid Food grade 85%	475 MT	Apr 9, 2026
Germany	Phosphoric acid 75% with EU-REACH registration, ISO tank or IBC	24000 MT	Oct 6, 2026
United States	Phosphoric acid	20000 MT	Sep 22, 2026
Pakistan	Phosphoric Acid 85%	1.00 20' Fcl	Sep 7, 2026
United Arab Emirates	Phosphoric acid	500 KG	Aug 21, 2026

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Phosphoric Acid, CAS 7664-38-2 | 75%,85%, Food & Industrial Grade Acidulant

Product Details

Seller Information

Inquiry History

Product Overview

Character

Main Functions

Applications

Packaging & Storage

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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