
DL-Malic acid CAS 617-48-1
Factory Supply DL-Malic acid CAS 617-48-1 with Best Price
- Appearance: White powder
- Assay: 99. 0%min
- Stock: In stock
- Sample: Available




DL-Malic acid: The Complete Guide
Index of DL-Malic acid Contents
Request A Free Quote
Basic Info of DL-Malic acid
Chemical Name: | DL-Malic acid |
Other Name: | DL-malic acid price;DL-malic acid≥99%;DL-malic acid,99.0%(T);DL-malic acid,AR,99.5%;(±)monohydroxysuccinic acid;2-hydroxysuccinic acid; DL-hydroxysuccinic acid; hydroxysuccinic acid; acido malico dl |
CAS: | 617-48-1 |
EINECS: | 210-514-9 |
Type: | Food additives |
Molecular Formula: | C4H6O5 |
Molecular Weight: | 134.09 |
Melting point | 131-133 °C(lit.) |
Density | 1,609 g/cm3 |
Vapor density | 4.6 (vs air) |
Vapor pressure | <0.1 mm Hg ( 20 °C) |
FEMA | 2655 | L-MALIC ACID |
Fp | 203°C |
Solubility | methanol: 0.1 g/mL, clear, colorless |
Pka | pK1:3.458;pK2:5.097 (25°C) |
Stability: | Stable. Incompatible with strong oxidizing agents, strong bases, amines, alkali metals, carbonates. |
Brand Name: | Zhishang Chemical |
Provide: | DL-Malic acid MSDS; DL-Malic acid COA |
What is DL-Malic acid?
As a common food additive and flavoring agent, DL-malic acid is widely used in jelly and fruit-based food, which helps food absorption and improves appetite. As a sour agent, it can be used instead of citric acid; it is often used as a sour agent for refreshing beverages, cold foods, processed foods, a preservative, and a color-retaining agent for fruit drinks.
In the non-food industry, it can be used in pharmaceuticals, cosmetics, metal cleaners, industrial deodorants and buffers, etc. In the textile industry, it is used as an anticoagulant, a raw material for fluorescent whitening agents, etc. As the role of DL-malic acid in the food and pharmaceutical industries is gradually recognized by people, its market demand is also increasing. Among them, in the application of medicine, foreign advanced standards have put forward high requirements for its purity, so its synthesis and refining process have certain difficulties in industrial production.
DL-Malic acid Uses
DL-malic acid is used in the food industry as a sour agent, color retainer, preservative and an emulsion stabilizer for egg yolks, and is also used in pharmaceuticals. Widely used in jelly and other fruit-added foods, it helps food absorption and improves appetite. As an acidulant, it can be used instead of citric acid, and is often used as an acidulant, a preservative for soft drinks, cold foods, processed foods, and a color-retaining agent for fruit drinks.
DL-malic acid is an internationally recognized safe food additive. It is used as a sour agent, a preservative and a pH regulator. Its sour taste is soft and long-lasting, and its sour taste is 20% stronger than that of citric acid. It can be used in all kinds of food and can be used in moderation according to production needs.
- In the non-food industry, DL-malic acid can be used in pharmaceuticals, cosmetics, metal cleaners, industrial deodorants and buffers, etc. In the textile industry, it is used as an anticoagulant, a raw material for fluorescent whitening agents, etc.
- DL-malic acid can be used as one of the synthetic raw materials of descaling agent and fluorescent whitening agent in the chemical industry. It can be added to shellac varnish or other varnishes to prevent the paint surface from crusting. Polyester resin produced with this acid And alkyd resins are special-purpose plastics.
Application preparation of DL-malic acid
DL-sodium hydrogen malate is a good food additive, which is widely used in aquatic products and meat food because it can increase the freshness of food and give it a good taste. Because it has a certain saltiness, it can be used as a substitute for table salt for food processing and manufacturing, and the amount of table salt can be reduced. In addition, since the content of sodium in DL-sodium hydrogen malate is lower than that of table salt, replacing table salt with DL-sodium hydrogen malate is more suitable for patients with high blood pressure, kidney disease and heart disease.
CN201510001761.3 provides a preparation method of DL-sodium hydrogen malate with simple method and high yield. The technical problem to be solved by this invention adopts the following technical scheme to realize: a kind of preparation method of DL-sodium hydrogen malate is, in the presence of a small amount of anhydrous sodium carbonate, trihydrate DL-disodium malate crystal and DL- The malic acid solids are mixed and ground under solvent-free conditions to form the reaction. The invention utilizes a solvent-free solid grinding reaction method to prepare DL-sodium hydrogen malate, has the characteristics of easy operation, high raw material utilization rate and high product yield, and has no pollution to the environment, conforming to the concept of green chemistry.
In recent years, people have begun to pay attention to cheap biomass materials as biosorbents. For example, biomass materials such as wood chips, rice husks, peanut husks, and corn stalks have been widely used in the treatment of printing and dyeing wastewater. As agricultural waste, flax has large yield, low cost and biodegradability, so it has great development prospects as an adsorbent to treat industrial dye wastewater. CN201610891927.8 provides a preparation method and application of a DL-malic acid modified flax adsorbent.
In order to achieve the above purpose, the technical scheme adopted in the present invention is: a preparation method of a DL-malic acid modified flax adsorbent, comprising the following steps:
S1. After washing the flax with tap water and distilled water, place it in a 70°C oven to dry to constant weight, pulverize it, and pass it through a 180-mesh sieve;
S2. Weigh 10 g of the flax powder obtained in step S1, soak it with 250 mL of sodium hydroxide solution of a certain concentration, and place it on a magnetic heating stirrer for magnetic stirring for 12 h, then filter it with a Buchner funnel and rinse it with deionized water to The pH of the filtrate is close to neutral. After drying the filter residue in an oven at 80°C, it is naturally cooled to room temperature and dried in a drying oven to obtain NaOH modified flax;
S3. Weigh 0.5 g of the obtained NaOH-modified flax into a conical flask, add 200 mL of DL-malic acid with a concentration of 0.8 mol/L, stir at 60° C. for 2 h with a magnetic heating stirrer, and then filter with a Buchner funnel Rinse with deionized water until the pH of the filtrate is close to neutral, dry the filter residue at 80°C, and cool it to room temperature naturally to obtain a flax adsorbent.
The Manager has Something to Say

This is William, CEO of Zhishang Chemical Co., Ltd.
Welcome to visit our factory . As the top chemical manufacturer, we have been striving for product quality, innovation , R&D, and customer service for the past 7 years. In the next 10 years or even longer, we are committed to becoming the most reliable chemical supplier in the world , creating a well-known international brand trusted by customers, with the spirit of “one meter wide, ten thousand meters deep”, we continue to focus on product research and development, continue to focus on customer service, continue to improve the supply chain service system, to create a professional chemical supply service team, to achieve win-win long-term cooperation. Please feel free to contact us if you have any questions.
Contact Us
Email: sales002@sdzschem.com
Phone: +86 176-5311 3209
WhatsApp: +86 176-5311 3209
Request A Free Quote
Quality Control of DL-Malic acid



Hot Sale Products
Comments from Customers








