c.i.75450
LACCAIC ACID
CAS: 60687-93-6
Molecular Formula: C91H62N2O44
c.i.75450 - Names and Identifiers
| Name | LACCAIC ACID |
| Synonyms | Red Lac c.i.75450 froM Lacca lac dye red LACCAIC ACID Laccaic Acid Shellac red color Water-soluble shellac red Purple sweet potato pigment |
| CAS | 60687-93-6 |
| EINECS | 918-731-7 |
c.i.75450 - Physico-chemical Properties
| Molecular Formula | C91H62N2O44 |
| Molar Mass | 1887.45298 |
| Density | 1.4363 (rough estimate) |
| Boling Point | 453.24°C (rough estimate) |
| Storage Condition | Room Temprature |
| Refractive Index | 1.5376 (estimate) |
| MDL | MFCD00071249 |
| Physical and Chemical Properties | The character is dark red viscous powder or liquid, and the color changes with the pH. When the PH value is 3-7, the process is red, the color is bright, and the coloring is strong. Soluble in water and alcohol. |
| Use | Uses the product has been widely used in beverages, fruit juice, orange juice, hawthorn juice, banana juice, spices, ice cream, candy, jelly, sugar coating tablets, cosmetics and so on. |
c.i.75450 - Risk and Safety
| WGK Germany | 3 |
| RTECS | GD2425100 |
c.i.75450 - Upstream Downstream Industry
c.i.75450 - Nature
| Merck | 14,5330 |
Last Update：2024-04-09 01:59:50
c.i.75450 - Uses and synthesis methods
chemical properties
Shellac red is a mixture of 5 components, purplish red to bright red powder. Soluble in lye, slightly soluble in water, ethanol and propylene glycol, and the higher the purity, the smaller the solubility in water. The solubility at 20 ℃ is 0.0335% (water) and 0.916%(95% ethanol). It is stable to light and heat under acidic conditions, but the hue changes with different pH values. When the pH value is less than 4.5, it is orange-yellow when the pH value is 4.5~5.5, purple when the pH value is greater than 5.5, and fade when the pH value is greater than 12. Metal ions such as copper and iron will precipitate. The maximum absorption wavelength is 488nm. Rat oral LD501.8g/kg.
use
1. as a food colorant, China stipulates that it can be used in fruit and vegetable juice beverages, carbonated beverages, wine, jam, seasoning sauce and candy, with a maximum usage of 0.50 g/kg.
2. edible red pigment. When acidic, it is orange and very stable. It is most suitable for drinks without protein and starch, candy, jelly, etc. (0.05% ~ 0.2%). The staining of protein and starch is purple, and the staining of stuffing core is good (0.05% ~ 0.3%). Foreign ham and sausage are dyed purplish red inside. In order to prevent blackening during protein dyeing, stabilizers (alum, sodium tartrate, phosphate, etc.) can be used together with an addition amount of 0.05% ~ 0.4%. The addition of plant protein was 0.05% ~ 0.4%. The amount of seasoned tomato sauce, strawberry jam, etc. was 0.05% ~ 0.2%. It can also be used for cakes, beverages, noodles, etc.
production method
1. shellac, a resinous substance secreted by females of lacca (Laccifer lacca) on legumes and moraceae plants parasitic in India, Thailand, Myanmar, China and other places, is extracted and refined with dilute sodium carbonate aqueous solution. The liquid product is propylene glycol solution containing 3% ~ 5% lac acid. Powder 80 mesh 100% passed.
2. shellac red is the red pigment contained in the female secretion (lac gum) of lac insect, a small insect parasitic on plants such as butterfly flower family and plane tree family. There are two kinds of raw materials for extracting lac pigment, one is the washing wastewater in the process of shellac processing, and the other is the worm corpse.
color water extraction method
the pH value of the color washing wastewater is adjusted to 4.0~4.5 with dilute hydrochloric acid, the supernatant is taken for filtration after standing for 4 hours, the pH value of the filtrate is adjusted to 5.5~6.0 with dilute alkali solution, and saturated calcium chloride solution is added according to 1000:1.3 to precipitate calcium lac acid. After 8 hours of clarification, the supernatant is removed, the precipitate is filtered, concentrated hydrochloric acid is added to; after filtering, wash with water until there is no acid, and dry to obtain the finished lac red pigment.
insect corpse extraction method
fully grind the worm corpse with an appropriate amount of water, then use 4-5 times of water countercurrent extraction for 4-5 times, centrifuge to remove slag, add a small amount of sodium hydroxide and calcium chloride solution into the extract, then add dilute hydrochloric acid, slowly adjust the pH value to about 2.1, let stand for 3-4 hours, clarify and filter; Concentrated sulfuric acid is added to the filtrate until no pigment crystals are precipitated, filter with 0.147~0.12mm spun silk, let the filtrate stand for 1~2 days and then precipitate pigment crystals, filter and wash with water for 3 times, dry at 60 ℃, crush and sift to obtain the finished product with a yield of 0.7% ~ 0.8%.
Last Update：2024-04-09 21:01:54
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Spot supply
Product Name: LACCAIC ACID Request for quotationCAS: 60687-93-6
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: LACCAIC ACID Request for quotation
CAS: 60687-93-6
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
CAS: 60687-93-6
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Product Name: Laccaic Acid (Lac) Visit Supplier Webpage Request for quotation
CAS: 60687-93-6
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 60687-93-6
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
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View History
Raw Materials for c.i.75450
Propylene glycol
Glutaric acid
Shellac
1-(2,5-dichlorophenyl)-3-pivaloyamido-4-(2-butyloxy-5-tertoctyl phenyl)mercapto-5-phrazolone
Collagen
Glutaric acid
Shellac
1-(2,5-dichlorophenyl)-3-pivaloyamido-4-(2-butyloxy-5-tertoctyl phenyl)mercapto-5-phrazolone
Collagen