Calconcarboxylic acid
- Product Name
- Calconcarboxylic acid
- CAS No.
- 3737-95-9
- Chemical Name
- Calconcarboxylic acid
- Synonyms
- HHSNN;HHSNNA;Kalces;CAL RED;CAL-RED(R);NN【Dotite】;NN Solution;medium: solid;Calconcarboxylic aci;CALCONCARBOXYLIC ACID
- CBNumber
- CB9270734
- Molecular Formula
- C21H14N2O7S
- Formula Weight
- 438.41
- MOL File
- 3737-95-9.mol
Calconcarboxylic acid Property
- Melting point:
- 300 °C(lit.)
- Density
- 1.60±0.1 g/cm3(Predicted)
- pka
- -0.50±0.40(Predicted)
- form
- Powder
- color
- Very dark purple to black
- Odor
- Odorless
- Water Solubility
- slightly soluble
- BRN
- 727492
- Stability:
- Stable. Incompatible with strong oxidizing agents.
- CAS DataBase Reference
- 3737-95-9(CAS DataBase Reference)
- EPA Substance Registry System
- 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]- (3737-95-9)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-37/39
- WGK Germany
- 3
- TSCA
- Yes
- HS Code
- 29270000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- H3128
- Product name
- Calconcarboxylic acid
- Packaging
- 5g
- Price
- $48.2
- Updated
- 2024/03/01
- Product number
- H3128
- Product name
- Calconcarboxylic acid
- Packaging
- 25g
- Price
- $153
- Updated
- 2024/03/01
- Product number
- 1.04595
- Product name
- Calconcarboxylic acid
- Purity
- metal indicator
- Packaging
- 5G
- Price
- $284
- Updated
- 2022/05/15
- Product number
- 1.04595
- Product name
- Calconcarboxylic acid
- Purity
- metal indicator
- Packaging
- 25G
- Price
- $563
- Updated
- 2022/05/15
- Product number
- H0250
- Product name
- 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic Acid (1:100 diluted with K2SO4)
- Packaging
- 1g
- Price
- $36
- Updated
- 2024/03/01
Calconcarboxylic acid Chemical Properties,Usage,Production
Chemical Properties
dark violet powder
Uses
Calconcarboxylic acid is used as an indicator for calcium titrations with ethylenediaminetetraacetic acid (EDTA) in the presence of magnesium.
Purification Methods
Purify it via its p-toluidinium salt, viz: dissolve the dye in warm 20% aqueous MeOH, treat with an equivalent of p-toluidine and cool to precipitate the salt. Finally recrystallise the acid from hot water. [Itoh & Ueno Analyst (London) 95 583 1970.] It is an indicator and complexes with Ca2+ in presence of Mg2+ and other metal ions [Patton & Reeder Anal Chem 28 1026 1956, Prentoe & Prentoe Analyst 106 227 1981].
Calconcarboxylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Calconcarboxylic acid manufacturers
- Product
- Calconcarboxylic acid 3737-95-9
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 25kg
- Release date
- 2019-07-12