Cost Effective CAS 77-92-9 Anhydrous Citric Acid for Cleaning Agents Water Softening and Food Processing Industries
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Product Description

Alias: Citric acid monohydrate/Citric acid anhydrous
Chemical formula: C6H10O8/C6H8O7Appearance:White crystalline power Citric Acid is mainly used as flavoring agent, preservative and
antistaling agent in food and beverage industry. Citric Acid also can be used as antioxidant, plasticizer, detergent in chemical,
cosmetics and detergent industries. As a food additive, Citric Acid Anhydrous is an essential food ingredient in our food supply.
As a leading food additives and food ingredients supplier in China, we can provide you with high quality Citric Acid Anhydrous.
CITRIC ACID ANHYDROUS | |||
Item | STANDARD | ACTUAL DATA | TEST METHOD |
CHARACTERS | COLOURLESS TRANSLUCENT CRYSTALS OR AS WHITE FINE CRYSTALLINE POWDER | COLOURLESS TRANSLUCENT CRYSTALS OR AS WHITE FINE CRYSTALLINE POWDER | FCC |
IDENTIFICATION | PASS TEST | PASS TEST | EP |
CLARITY AND COLOUR OF SOLUTION | PASS TEST | PASS TEST | BP |
CONTENT | 99.5-100.5% | 100.0% | BP |
MOISTURE | 0.5% | 0.2% | FCC |
OXALATE/OXALIC ACID | 100mg/kg | <100mg/kg | FAO/WHO CCFAS Vol.4 |
SULPHATE | 150ppm | <150ppm | BP |
READILY CARBON IS ABLE SUBSTANCES | ABS 0.52 | <0.52 | FCC |
SUBSTANCES | TRA 30% | >30% | |
RESIDUE ON IGNITION (SULPHATED ASH) | 0.05% | 0.01% | FCC |
HEAVY METALS | 10ppm | 5ppm | IP |
ARSENIC | 1mg/kg | <0.1mg/kg | IP |
LEAD | 0.5mg/kg | <0.1mg/kg | FCC |
MERCURY | 1mg/kg | <0.1mg/kg | GB 5009.17 |
ALUMINIUM | 0.2ppm | <0.2ppm | BP |
BACTERIAL ENDOTOXINS | 0.51u/mg | <0.51u/mg | BP |
ISO CITRIC ACID | PASS TEST | PASS TEST | JSFA |
BARIUM | PASS TEST | PASS TEST | IP |
CALCIUM | 200ppm | <200ppm | IP |
IRON | 50ppm | <50ppm | IP |
CHLORIDE | 50ppm | <50ppm | IP |
MESH SIZE | / | 30-100mesh | / |
CITRIC ACID MONOHYFRATE | |||
Item | STANDARD | ACTUAL DATA | TEST METHOD |
CHARACTERS | COLOURLESS TRANSLUCENT CRYSTALS OR AS WHITE FINE CRYSTALLINE POWDER | COLOURLESS TRANSLUCENT CRYSTALS OR AS WHITE FINE CRYSTALLINE POWDER | FCC |
IDENTIFICATION | PASS TEST | PASS TEST | EP |
CLARITY AND COLOUR OF SOLUTION | PASS TEST | PASS TEST | BP |
CONTENT | 99.5-100.5% | 100.0% | BP |
MOISTURE | 7.5-8.8% | 8.7% | FCC |
OXALATE/OXALIC ACID | 100mg/kg | <100mg/kg | FAO/WHO CCFAS Vol.4 |
SULPHATE | 150ppm | <150ppm | BP |
READILY CARBON IS ABLE SUBSTANCES | ABS 0.52 | <0.52 | FCC |
SUBSTANCES | TRA 30% | >30% | |
RESIDUE ON IGNITION (SULPHATED ASH) | 0.05% | 0.01% | FCC |
HEAVY METALS | 10ppm | 5ppm | IP |
ARSENIC | 1mg/kg | <0.1mg/kg | IP |
LEAD | 0.5mg/kg | <0.1mg/kg | FCC |
MERCURY | 1mg/kg | <0.1mg/kg | GB 5009.17 |
ALUMINIUM | 0.2ppm | <0.2ppm | BP |
BACTERIAL ENDOTOXINS | 0.51u/mg | <0.51u/mg | BP |
ISO CITRIC ACID | PASS TEST | PASS TEST | JSFA |
BARIUM | PASS TEST | PASS TEST | IP |
CALCIUM | 200ppm | <200ppm | IP |
IRON | 50ppm | <50ppm | IP |
CHLORIDE | 50ppm | <50ppm | IP |
MESH SIZE | / | 8-40mesh | / |

Because citric acid has a mild and refreshing sour taste, it is widely used in the manufacture of various beverages, soda, wine, candy, snacks, biscuits, canned juice, dairy products and other foods. In all the organic acid market, citric acid market share of more than 70%, so far there is no one can replace the acid flavor agent. Citric acid in a molecule of crystalline water is mainly used as an acidic flavoring agent for refreshing drinks, fruit juices, jams, fruit drops and cans, and can also be used as an antioxidant for cooking oil. At the same time improve the sensory properties of food, enhance appetite and promote the digestion and absorption of calcium and phosphorus in the body. Anhydrous citric acid is used in large quantities in solid beverages. Citric acid salts such as calcium citrate and iron citrate are fortifiers that require the addition of calcium and iron ions to some foods. The ester of citric acid such as triethyl citrate can be used as non-toxic plasticizer, manufacturing plastic film for food packaging, is the beverage and food industry acid agent, preservative.
Packing & Delivery


Delivery time: within 15 days, and 7 days for ready goods
Payment terms: TT, LC, DP acceptable
Shipping method: FOB, CFR, CIF The third party testing is acceptable
Why Is Citric Acid Anhydrous Powder Used in Cleaning and Descaling Products?
Citric acid anhydrous powder is widely used in cleaning formulations because it combines acidity with useful chelating properties. In practical applications, this means it can help manufacturers develop products designed to address mineral deposits, hard-water residues, limescale, and other inorganic buildup. Compared with harsher acid systems, citric acid is also a familiar raw material across multiple industries, making it suitable for a broad range of formulation concepts.
One important advantage of citric acid anhydrous powder is that it contains no water of crystallization. This can be particularly useful in dry cleaning powders, effervescent cleaning tablets, dishwasher formulations, and other moisture-sensitive products. Manufacturers can dose the material accurately into dry blends without introducing additional bound water into the formulation.
Citric acid can also interact with metal ions such as calcium and magnesium. These minerals are closely associated with hard-water deposits and scale formation, which is why citric acid-based formulations are commonly considered for descaling and cleaning applications.
For manufacturers, however, selecting citric acid powder should involve more than simply comparing price per bag. Particle size, purity, solubility, storage conditions, packaging, and compatibility with other ingredients can all influence final product performance. Jiuzhou Chemical supplies citric acid anhydrous solutions for customers looking for a versatile raw material for cleaning agents and industrial formulations.
Citric acid is recognized in Codex food additive specifications for functions including acidity regulation and sequestration, reflecting its broad functional versatility.
How Does Citric Acid Anhydrous Powder Help with Hard Water Treatment?
Hard water contains dissolved minerals, particularly calcium and magnesium. While these minerals are naturally present in water, they can create operational challenges in cleaning, washing, and industrial processing systems. Scale deposits may accumulate on equipment surfaces, reduce cleaning efficiency, and affect the performance of detergents and other formulations.
Citric acid anhydrous powder can be used as part of formulations designed to manage these mineral-related issues. Citric acid is capable of binding or complexing certain metal ions, which is one reason it is used in applications involving water treatment, cleaning products, and industrial processing.
For manufacturers developing water-softening or scale-control products, the anhydrous form offers an additional formulation advantage. Because it contains no water of crystallization, it can be particularly suitable for dry blends where moisture control and powder stability are important. It can be incorporated into powdered cleaners, water-treatment compounds, and other solid formulations that require consistent ingredient composition.
The effectiveness of a finished product will depend on factors such as water hardness, product concentration, contact time, temperature, and the presence of other ingredients. For this reason, citric acid should be evaluated as part of the complete formulation rather than treated as a one-size-fits-all solution.
Jiuzhou Chemical citric acid anhydrous powder provides manufacturers with a versatile raw material that can be considered for cleaning, descaling, water-conditioning, and other industrial applications where acidity and metal-ion management are required.
Citric Acid Anhydrous Powder vs. Citric Acid Monohydrate: Which One Should You Choose?
One of the most common questions from citric acid buyers is whether anhydrous or monohydrate citric acid is the better choice. The answer depends primarily on the application and formulation requirements.
The key difference is the presence of water of crystallization. Citric acid anhydrous powder does not contain crystal water, while citric acid monohydrate powder contains one molecule of water associated with each citric acid molecule. This difference affects composition, weight-based dosing, and suitability for certain moisture-sensitive formulations.
For dry applications, anhydrous citric acid may offer important advantages. Powdered beverage mixes, dry food ingredients, effervescent products, cleaning powders, and other dry blends may benefit from a raw material that does not introduce additional crystal water. This can simplify formulation control and help manufacturers maintain more consistent ingredient ratios.
Monohydrate citric acid can still be an effective choice for many applications, especially where the material is dissolved in water during processing. The important point is that manufacturers should not automatically substitute one form for the other on a kilogram-for-kilogram basis without reviewing the formulation.
When sourcing citric acid anhydrous powder, buyers should therefore consider more than the basic chemical name. Application type, moisture sensitivity, dosing requirements, particle size, storage conditions, and cost per unit of active acid should all be evaluated.
Jiuzhou Chemical can help customers select the appropriate citric acid form according to their product formulation and processing requirements.
Why Is Citric Acid Anhydrous Powder Used in Food Processing?
Citric acid is one of the most widely used functional ingredients in modern food processing. Depending on the product formulation and applicable regulations, it can be used for acidity adjustment, flavor balancing, pH control, sequestration, and other functional purposes.
In food applications, citric acid anhydrous powder is particularly relevant for manufacturers producing dry or moisture-sensitive products. Examples can include powdered beverages, seasoning blends, confectionery ingredients, instant food products, baking mixes, nutritional powders, and other dry formulations.
The anhydrous form provides a consistent acid composition without water of crystallization. For manufacturers that rely on precise dry blending and weight-based ingredient control, this can be an important processing consideration. The material is also readily soluble in water, allowing it to be incorporated into many different food and beverage manufacturing processes.
Citric acid is listed by the Codex General Standard for Food Additives as an ingredient with functions including acidity regulation, antioxidant activity, colour retention, and sequestration, although permitted uses and dosage levels depend on the specific food category and applicable regulations. Manufacturers should always confirm the regulatory requirements of their target market before commercial use.
For food ingredient buyers, consistent quality and documentation are equally important. Jiuzhou Chemical provides citric acid anhydrous powder for customers seeking a reliable raw material for food processing and related manufacturing applications.
What Should Manufacturers Consider Before Buying Citric Acid Anhydrous Powder?
Buying citric acid based only on price can create unnecessary problems during production. Although citric acid anhydrous powder may appear to be a relatively standardized raw material, different applications can require different specifications.
The first consideration is the intended use. Food processing, cleaning products, water treatment, pharmaceutical manufacturing, and industrial formulations may require different grades and documentation. Buyers should confirm that the selected product meets the quality and regulatory requirements relevant to the final application.
Particle size is another important factor. Fine powders may dissolve quickly and distribute effectively in some formulations, but they can also create more dust during handling. Granular grades may offer better flowability in certain production environments. The best option depends on mixing equipment, dosing systems, dissolution requirements, and the other ingredients in the formulation.
Packaging and storage should also be evaluated. Citric acid can be affected by environmental moisture, so suitable packaging and dry storage conditions are important for maintaining product quality and handling performance.
Professional buyers should also request appropriate product documentation, such as specifications, certificates of analysis, safety information, and other documents required for their application or market.
By understanding these factors before placing an order, manufacturers can reduce formulation inconsistencies and supply-chain risks. Jiuzhou Chemical works with customers to provide citric acid anhydrous powder solutions based on application requirements, specifications, packaging needs, and purchasing volumes.
How Should Citric Acid Anhydrous Powder Be Stored and Handled?
Proper storage is essential for maintaining the quality of citric acid anhydrous powder throughout transportation and use. Although the material is generally stable when stored under suitable conditions, exposure to excessive humidity can affect powder handling and physical characteristics.
The product should normally be kept in a cool, dry, and well-ventilated storage environment. Packaging should remain properly sealed when the material is not in use to reduce exposure to moisture and contamination. In manufacturing facilities, good housekeeping and appropriate powder-handling procedures can also help maintain efficient operations.
Humidity deserves particular attention because anhydrous citric acid can absorb moisture under certain environmental conditions. This may influence powder flow, increase the risk of caking, and potentially affect the consistency of dry formulations. For this reason, manufacturers using citric acid in powdered products, dry blends, or moisture-sensitive systems should consider warehouse conditions as part of their overall quality-control process.
When handling larger volumes, buyers should also consider packaging format, storage duration, material transfer methods, and compatibility with surrounding raw materials. Proper stock rotation can help ensure that material is used within the recommended storage period.
For international buyers, suitable packaging is also important during long-distance transportation, especially when products may be exposed to changing temperature and humidity conditions.
Jiuzhou Chemical focuses on providing citric acid anhydrous powder with specifications and packaging solutions suited to different industrial and commercial requirements, helping customers maintain more consistent performance from storage through production.
Can Citric Acid Anhydrous Powder Be Used in Both Food and Industrial Applications?
Yes, citric acid is a highly versatile organic acid with applications across food processing, beverages, cleaning products, water treatment, personal care, pharmaceutical manufacturing, and industrial processing. However, the suitability of a specific citric acid anhydrous powder depends on its grade, specification, purity, documentation, and the regulatory requirements of the intended application.
In food manufacturing, citric acid is commonly used where acidity adjustment, flavor balance, pH management, or sequestration functions are required. In industrial applications, it may be incorporated into cleaning agents, descaling products, metal-treatment formulations, and processes involving the management of mineral deposits or metal ions.
The same basic chemical name does not automatically mean that every product is interchangeable. A material intended for industrial use may not meet the documentation or quality requirements needed for food production. Similarly, food-grade specifications may be unnecessary for certain technical applications.
For this reason, manufacturers should clearly define the end use before purchasing. Important questions include: What grade is required? Does the product need specific certifications? What particle size works best with the production equipment? What packaging format is appropriate for the required order volume?
By matching the specification to the final application, buyers can make sourcing decisions based on performance and compliance rather than price alone.
Jiuzhou Chemical supplies citric acid anhydrous powder for different application requirements and can support customers in identifying specifications that better match their production and formulation needs.
Citric Acid Anhydrous Powder FAQs
What is citric acid anhydrous powder?
Citric acid anhydrous powder is a water-free form of citric acid, meaning it does not contain water of crystallization. It is widely used as an acidulant, pH regulator, chelating agent, and functional ingredient in food processing, beverages, cleaning products, water treatment, pharmaceuticals, and other industrial applications.
What is the difference between citric acid anhydrous and citric acid monohydrate?
The main difference is their water content. Citric acid anhydrous contains no water of crystallization, while citric acid monohydrate contains one molecule of water. Anhydrous citric acid is often preferred for dry blends and moisture-sensitive formulations, while monohydrate citric acid may be suitable for many liquid and general processing applications.
What is citric acid anhydrous powder used for?
Citric acid anhydrous powder has a wide range of applications. It can be used in food and beverage processing for acidity adjustment, in cleaning products for descaling, in water-related applications for managing mineral deposits, and in industrial formulations where pH control or metal-ion chelation is required.
Is citric acid anhydrous powder suitable for food processing?
Food-grade citric acid anhydrous powder can be used in food and beverage applications, subject to applicable regulations and formulation requirements. It is commonly used in products such as beverages, confectionery, sauces, seasonings, powdered drinks, and other processed foods.
Can citric acid anhydrous powder be used for cleaning and descaling?
Yes. Citric acid anhydrous powder is commonly used in cleaning formulations designed to remove mineral deposits, limescale, and hard-water residues. Its acidic and chelating properties make it useful in descaling powders, household cleaners, and certain industrial cleaning products.
Is citric acid anhydrous powder soluble in water?
Yes. Citric acid anhydrous powder is readily soluble in water, making it suitable for applications that require quick dissolution or incorporation into liquid formulations. Solubility can vary depending on factors such as temperature, concentration, and mixing conditions.
How should citric acid anhydrous powder be stored?
Citric acid anhydrous powder should be stored in a cool, dry, and well-ventilated place. The packaging should remain tightly sealed to protect the product from moisture and contamination. Proper storage can help maintain powder flowability and product quality.
What should buyers consider when purchasing citric acid anhydrous powder?
Buyers should consider the intended application, product grade, purity, particle size, packaging, documentation, and storage requirements. For food or other regulated applications, it is also important to confirm that the product specifications and supporting documents meet the requirements of the target market.
Can Jiuzhou Chemical provide citric acid anhydrous powder for bulk orders?
Jiuzhou Chemical can support customers looking for citric acid anhydrous powder for food processing, cleaning agents, water-related applications, and other industrial uses. Buyers can discuss their required specifications, packaging preferences, order quantities, and application needs before placing a bulk order.