 Home > Food Additives > Acidity Regulators > 2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1) for Sale > Citric acid, citric acid monohydrate, Ensign citric acid, industrial citric acid monohydrate, 5949-29-1

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Citric acid, citric acid monohydrate, Ensign citric acid, industrial citric acid monohydrate, 5949-29-1

Name: Citric acid, citric acid monohydrate, Ensign citric acid, industrial citric acid monohydrate, 5949-29-1
Brand: Ensign
SKU: pr2603091492
Price: 927 USD
Availability: OutOfStock

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CAS No.:

5949-29-1

Grade:

Industrial Grade

Content:

99.5%

Port:

Qingdao Port

Brand:

Ensign

Packaging:

25 kg is packed in PE plus kraft paper bags or composite film packaging

Price valid (until):

2026-04-09

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Henan Zhencheng Environmental Protection Technology Co., Ltd

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Polyacrylamide,Polyaluminum Chloride,Poly Ferric Sulfate,Aluminium Sulfate,Activated Carbon / Activated Charcoal,Quartz Sand Filter Media

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Product Description
Seller Information
Inquiry History

Description

Detailed Description of Monohydrate Citric Acid Product

I. Product Overview

Monohydrate Citric Acid, with the chemical name 2-hydroxypropane-1,2,3-tricarboxylic acid monohydrate, is a common crystalline form of citric acid. It is widely present in citrus fruits and is produced from starchy or sugary raw materials through fermentation and purification. It is a non-toxic, odorless, and easily water-soluble food-grade and industrial-grade multifunctional additive. Its core characteristics include mild acidity, excellent chelating ability, and biodegradability. It is widely used in various fields such as food, medicine, chemical industry, cosmetics, detergents, and water treatment, with multiple functions including sour taste adjustment, preservation, chelation, and decontamination. It meets relevant national and international quality standards, with high safety and strong applicability.

This product is of industrial grade and is produced in strict accordance with national standards such as GB 1886.235-2016 and international standards such as BP, USP, and FCC, ensuring high purity, low impurity content, and stable performance to meet the usage needs of different industries.

II. Core Product Features

2.1 Physical Features

Shop Citric acid, citric acid monohydrate, Ensign citric acid, industrial citric acid monohydrate, 5949-29-1-Detailed Image 1

Appearance: Colorless or white crystalline granules, crystalline powder, odorless, extremely sour taste, regular crystalline form, no obvious agglomeration, impurities or particles of abnormal color, slightly efflorescent in dry air, and will slowly lose part of the crystal water when exposed to air.
Solubility: Extremely soluble in water, with a solubility of about 1630g/L at 20℃, forming a clear and transparent acidic solution after dissolution; easily soluble in ethanol, soluble in ether, with fast dissolution rate and no obvious residual precipitation. Compared with anhydrous citric acid, it has higher solubility in water and is more suitable for scenarios where water activity needs to be controlled.
Stability: Stable in nature under normal temperature and pressure, not easy to decompose; when heated above 36.6℃, it will lose crystal water and turn into anhydrous citric acid; when heated above 175℃, it will decompose to produce carbon dioxide and water. Avoid high-temperature exposure and severe impact.
Density: The bulk density is about 1.54g/cm³, and the true density is about 1.66g/cm³. The particles are uniform and have good fluidity, which is convenient for storage, transportation and quantitative addition.
Critical dehydration temperature: 36.6℃. Below this temperature, it can stably maintain the crystal water form; above this temperature, dehydration begins.

2.2 Chemical Characteristics

Molecular formula: C₆H₈O₇·H₂O, relative molecular mass 210.14 (calculated according to the 2013 International Relative Atomic Mass). It is an organic acid containing one molecule of crystal water, with a crystal water content of approximately 8.58%.
Acidity: It is a tribasic weak acid, and its aqueous solution is weakly acidic. The pH value of a 10% (w/v) aqueous solution is 1.5~2.5, and the pH value of a 50g/L solution at 25℃ is 2.2~2.5. It has mild acidity, no strong corrosivity, and compared with inorganic acids, it has lower corrosivity to equipment and materials, making it safer to use.
Chelating property: It has excellent chelating ability for metal ions such as calcium, magnesium, and iron, and can form stable complexes with metal ions. It is often used in water treatment, washing, electroplating and other fields to remove metal impurities or prevent metal ions from interfering with the reaction process.
Reducibility: It has a certain reducibility, which can inhibit oxidation reactions, prevent oxidation and deterioration of products such as food and cosmetics, extend the shelf life of products, and at the same time, it can be used as an antioxidant synergist to enhance the stability of ingredients such as vitamin C.
Biodegradability: It is completely biodegradable, and the decomposition products are carbon dioxide and water, with no residues or pollution. It meets the requirements of green environmental protection and will not burden the environment.

2.3 Safety Features

Non-toxic and harmless: Food-grade products meet national food safety standards and can be directly used in food, beverages, pharmaceuticals and other fields that come into contact with the human body. They can be normally metabolized after being ingested by the human body, with no cumulative toxicity, and the ADI value (Acceptable Daily Intake) is unrestricted (FAO/WHO standards).
Non-irritating: It has no obvious irritation to the skin and mucous membranes at room temperature. However, if in long-term contact with concentrated powder, it is necessary to avoid inhalation or direct contact with the eyes. It is recommended to wear protective masks and gloves during operation.
Compatibility: It has good compatibility with most substances and can be mixed with food additives such as sugars, proteins, preservatives, emulsifiers, and industrial raw materials without causing harmful reactions or affecting the original performance of the products.

III. Product Specification Parameters

This product is of industrial grade. The core specification parameters are as follows (unit: mass fraction unless otherwise specified). The testing methods strictly comply with relevant national standards and industry specifications to ensure the accuracy and reliability of the parameters:

Parameter name	Industrial grade (GB/T 8269-2016)	Detection method
Citric acid content	99.0%~101.0%	High-performance liquid chromatography or NaOH titration
Moisture content	7.0%~9.5%	Karl Fischer coulometric method or volumetric method
pH value (10% aqueous solution)	1.4~2.6	Potentiometry (GB/T 6368-2008)
Sulfate (calculated as SO₄²⁻)	≤0.03%	Barium chloride turbidimetry or ion chromatography
Chloride (calculated as Cl⁻)	≤0.01%	Silver nitrate titration method or ion chromatography method
Heavy metals (calculated as Pb)	≤0.0001%	Atomic Absorption Spectrophotometry (Graphite Furnace Method)
Arsenic (calculated as As)	≤0.0002%	Atomic Fluorescence Spectrometry
Oxalic acid content	≤0.02%	High performance liquid chromatography or redox titration
Ignition residue	≤0.1%	Muffle furnace ignition method (800℃±25℃)
easily carbonizable substances	Compliant with regulations	Colorimetric method after reaction with sulfuric acid (compared with potassium dichromate standard solution)
Residual solvents (methanol, ethanol)	Methanol ≤ 0.2%, Ethanol ≤ 0.8%	Gas Chromatography (FID Detector)
Granularity (10-20 mesh)	≥85%	Standard sieve screening method

IV. Product Quality Standards

National Standards

Industrial grade: Strictly comply with "GB/T 8269-2016 Citric Acid", which is applicable to the detection of industrial-grade and food-grade citric acid, including items such as the purity, impurities, and physical properties of citric acid monohydrate. It specifies the technical requirements, test methods, and inspection rules for the product to ensure stability and reliability in industrial applications.
Chemical reagent grade: Comply with "GB/T 9855-2008 Chemical Reagent - Citric Acid Monohydrate (Citric Acid)", which specifies the properties, specifications, tests, inspection rules, packaging, and marking of citric acid monohydrate in chemical reagents, and is applicable to the inspection of citric acid monohydrate in chemical reagents.

Application scenarios

1.Food factory

2.Sewage treatment plant

3.Chemical plant

Basic Info

Product Name:

2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1)

Other Name:

1,2,3-Propanetricarboxylic acid,2-hydroxy-,hydrate (1:1);Citric acid,monohydrate;1,2,3-Propanetricarboxylic acid,2-hydroxy-,monohydrate;2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1);2-Hydroxy-1,2,3-propanetricarboxylic acid monohydrate;Citronsyra Mono E 33-8-80MLT

CAS No.:

5949-29-1

Molecular Formula:

C6H8O7.H2O

InChIKeys:

InChIKey=YASYEJJMZJALEJ-UHFFFAOYSA-N

Molecular Weight:

210.13900

Exact Mass:

210.03800

EC Number:

611-842-9

UNII:

2968PHW8QP

ICSC Number:

0704

DSSTox ID:

DTXSID7074668

NCI Thesaurus Code:

C47452

HScode:

2918140000

Categories:

Acidity Regulators

Characteristics

PSA:

141.36000

XLogP3:

-1.3128

Appearance:

White crystals or powder

Density:

1.5 g/cm³

Melting Point:

135 °C

Boiling Point:

56 °C760 mm Hg(lit.)

Flash Point:

1 °F

Refractive Index:

n20/D 1.359(lit.)

Water Solubility:

H2O: 1630 g/L (20 ºC)

Storage Conditions:

Citric acid monohydrate loses water of crystallization in dry air orwhen heated to about 408℃. It is slightly deliquescent in moist air.Dilute aqueous solutions of citric acid may ferment on standing.

Vapor Pressure:

184 mm Hg ( 20 °C)

Vapor Density:

2 (vs air)

Toxicity:

LD50 orally in Rabbit: 3000 mg/kg

Autoignition Temperature:

1010 °C

Physical Dangers:

Dust explosion possible if in powder or granular form, mixed with air.

See More 2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1) Properties 

Hazard Identification

Classification of the substance or mixture

Skin irritation, Category 2

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H319 Causes serious eye irritation
Prevention	P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response	P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse.
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. 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

Separated from strong bases and oxidants.

See More 2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1) Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Polyacrylamide,Polyaluminum Chloride,Poly Ferric Sulfate,Aluminium Sulfate,Activated Carbon / Activated Charcoal,Quartz Sand Filter Media

Location:
No. 162, Shuanghe Village, Jiajinkou Town, Gongyi City

Payment Terms:
TT against copy of documents,D/P,L/C,100% TT in advance

Year of Establishment:
2014

Certifications:
trademark,Business License
Henan Zhencheng Environmental Protection Technology Co., Ltd., founded in 2000, focuses on deep cultivation in the environmental protection field. It is mainly engaged in the whole-process services of production, sales, inspection, analysis and on-site commissioning of water treatment chemicals, water purifiers, activated carbon, filter media and fillers, and is committed to providing professional and efficient water treatment solutions for various industries.

The company's main products cover multiple series, including:

Polyacrylamide (PAM)

Polyaluminum Chloride (PAC)

Poly Aluminum Ferric Chloride

Poly Ferric Sulfate (PFS)

Ferrous Sulfate

Activated Carbon

Filter Media

Fillers, etc.

The company always adheres to the bottom line of quality. Its products strictly implement relevant national and industry standards, and adopt advanced production processes and testing equipment to ensure that each batch of products meets quality requirements. With stable and reliable product quality, the company's products are widely used in many core fields such as papermaking, printing and dyeing, sewage treatment, chemical industry, coal gas, metallurgy, urban construction and environmental protection, providing strong support for water purification and environmental governance in various industries.

Over the years, the company has deeply cultivated the market and pursued innovation. Its products are sold to many countries and regions at home and abroad. With high-quality products and considerate services, it has won high praise and wide trust from global users, and its brand popularity and industry influence have steadily improved.

Upholding the philosophy of "equality and mutual benefit, friendly cooperation and win-win development", Henan Zhencheng Environmental Protection Technology Co., Ltd. is willing to make acquaintances with friends from all walks of life at home and abroad, carry out comprehensive and in-depth cooperation in environmental protection engineering project construction, technical exchange, product promotion and other aspects, work together to purify water quality, protect the ecological environment, and build a beautiful home where man and nature live in harmony.

Inquiry History

115 Inquiries

Country	Product	Purchase Quantity	Date Posted
Vietnam	Citric Acid Monohydrate Food Grade Cas No 5949-29-1	57 MT	Sep 16, 2023
Germany	Citric Anhydride	400 TON	Jun 11, 2024
Russia	citric acid monohydrate	300 MT	Feb 22, 2024
India	Citric acid monohydrate	3.00 MT	Jul 10, 2026
Egypt	Citric Acid monohydrate	5.00 MT	Jul 8, 2026
India	Citric acid monohydrate	5.00 MT	Jun 3, 2026
India	Citric Acid Monohydrate	5.00 MT	Mar 31, 2026
India	Citric Acid Mono 8-40(Food Grade)	4.00 20' Fcl	Feb 24, 2026
India	Citric acid monohydrate	27 MT	Feb 15, 2026
India	Citric acid monohydrate	500.00 KG	Feb 2, 2026
Bangladesh	citric acid monohydrate price	1.00 20' Fcl	Jan 23, 2026
India	citric acide	500 MT	Jan 23, 2026
India	citric acide	500 MT	Jan 20, 2026
India	CITRIC ACIDE	500 MT	Jan 19, 2026
India	Citric acid monohydrate	10 MT	Dec 31, 2025
Bangladesh	Citric acid monohydrate	1.00 20' Fcl	Sep 26, 2025
India	Citric acid monohydrate	27.00 MT	Sep 16, 2025
Turkey	citrid Acid monohydrate	1000 KG	Aug 26, 2025
Pakistan	Citric Acid Monohydrate	1.00 20' Fcl	Aug 9, 2025
India	Citric acid mono Ensign	10.00 MT	Aug 4, 2025

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