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L(+)-Ascorbic acid

CAS No. 50-81-7
Chemical Name: L(+)-Ascorbic acid
Synonyms: 100M;Cebid;Cecon;Celin;Cevex;Cewin;Cipca;Hicee;IDO-C;Vicin
CBNumber: CB7853704
Molecular Formula: C6H8O6
Formula Weight: 176.12
MOL File: 50-81-7.mol
L(+)-Ascorbic acid Property
Melting point : 190-194 °C (dec.)
alpha : 20.5 º (c=10,H2O)
density : 1,65 g/cm3
FEMA : 2109
refractive index : 21 ° (C=10, H2O)
storage temp. : 0-6°C
solubility : H2O: 50 mg/mL at 20 °C, clear, nearly colorless
form : powder
pka: 4.04, 11.7(at 25℃)
color : white to slightly yellow
PH: 1.0 - 2.5 (25℃, 176g/L in water)
Water Solubility : 333 g/L (20 ºC)
Merck : 14,830
BRN : 84272
Stability:: Stable. May be weakly light or air sensitive. Incompatible with oxidizing agents, alkalies, iron, copper.
CAS DataBase Reference: 50-81-7(CAS DataBase Reference)
NIST Chemistry Reference: L-Ascorbic acid(50-81-7)
EPA Substance Registry System: L-Ascorbic acid(50-81-7)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes : Xn
Risk Statements : 20/21/22-36/37/38
Safety Statements : 24/25-36-26
RIDADR : UN 1648 3 / PGII
WGK Germany : 1
RTECS : CI7650000
TSCA : Yes
HS Code : 29362700
Hazardous Substances Data: 50-81-7(Hazardous Substances Data)
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H226 Flammable liquid and vapour Flammable liquids Category 3 Warning
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378 In case of fire: Use … for extinction.

L(+)-Ascorbic acid Chemical Properties,Usage,Production

Chemical Properties
White crystals
Uses
antiscorbutic, antiviral
Uses
analgesic, antipyretic
Uses
Physiological antioxidant. Coenzyme for a number of hydroxylation reactions; required for collagen synthesis. Widely distributed in plants and animals. Inadequate intake results in deficiency syndrome s such as scurvy. Used as antimicrobial and antioxidant in foodstuffs.
Definition
ChEBI: The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.
General Description
White to very pale yellow crystalline powder with a pleasant sharp acidic taste. Almost odorless.
Air & Water Reactions
May be sensitive to prolonged exposure to air and light. Sensitive to moisture. Soluble in water. Aqueous solutions are oxidized by air in a reaction that is accelerated by alkalis, iron and copper. The rate depends on the pH and on oxygen concentration. Also subject to degradation under anaerobic conditions.
Reactivity Profile
L(+)-Ascorbic acid is a lactone. Reacts as a relatively strong reducing agent and decolorizes many dyes. Forms stable metal salts. Incompatible with oxidizers, dyes, alkalis, iron and copper. Also incompatible with ferric salts and salts of heavy metals, particularly copper, zinc and manganese .
Fire Hazard
Flash point data for L(+)-Ascorbic acid are not available; however, L(+)-Ascorbic acid is probably combustible.
L(+)-Ascorbic acid Preparation Products And Raw materials
Raw materials
D-Sorbitol Sodium hypochlorite 2-Furoic acid Gluconic acid SODIUM ERYTHORBATE Acetonylacetone GLOBULINS, CAT GAMMA Sodium methanolate Sorbitol Nickel sulfate Sodium ascorbate Sodium erythorbate
Preparation Products
Gardenia blue pigment Hibiscetin Magnesium ascorbyl phosphate BETANIN L-Threonic acid calcium salt L-Ascorbyl 6-palmitate Calcium diascorbate L-Carnitine-L-tartrate Sodium ascorbate L-ASCORBYL 6-STEARATE
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50-81-7(L(+)-Ascorbic acid)Related Search:
Sodium erythorbate L-ASCORBIC ACID NA,Ascorbic acid-Na-salt Pyridoxine hydrochloride L-Ascorbic acid, calcium salt (2:1), dihydrate MULTIVITAMIN L-Ascorbyl 6-palmitate Vitamin A Vitamin E 17-Hydroxy-7-alpha-mercapto-3-oxo-17-alpha-pregn-4-ene-21-carboxylic acid-gamma-lactone-7-acetate SODIUM ERYTHORBATE ASCORBIC ACID (VITAMIN C) USP(CRM STANDARD),ASCORBIC ACID, L-(+)-(VITAMIN C)(USP),ASCORBIC ACID, L-(+)-(VITAMIN C)(SECONDARY STANDARD),ASCORBIC ACID, L-(+)-(VITAMIN C)(BASF)(SECONDARY STANDARD) Folic acid Hyaluronic acid Citric acid Vitamin E L(+)-Ascorbic acid Vitamin D3 Vitamin C Injection
Sugars Sugar Acids 3-Keto-L-gulofuranolactone 3-Oxo-L-gulofuranolactone 3-oxo-l-gulofuranolactone(enolform) Adenex Allercorb Antiscorbic vitamin antiscorbicvitamin Antiscorbutic vitamin antiscorbuticvitamin Arco-Cee Ascoltin Ascorb Ascor-B.I.D. Ascorbajen Ascorbate ascorbic Ascorbicab Ascorbicap Ascorbutina Ascorin Ascorteal Ascorvit Cantan Cantaxin Catavin C catavinc Ce lent Cebicure Cebid Cebion Cebione Cecon Cee-Caps TD cee-capstd Cee-Vite Cegiolan Ceglion Celaskon celent Celin Cemagyl Ce-Mi-Lin Cemill Cenetone Cereon Cergona Cescorbat Cetamid Cetane-Caps TC Cetane-Caps TD cetane-capstd Cetebe Cetemican Cevalin Cevatine Cevex
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