Sulfanilic acid

 

Fusing point	>300 °C(lit.)
Boiling point	288 ℃
density	1.485
Vapor pressure	0Pa at 25℃
Refractive index	1.5500 (estimate)
Storage condition	Store below +30°C.
solubility	10g/l
Acidity coefficient(pKa)	3.24(at 25℃)
Form	solidity
colour	White to almost white
PH value	2.5 (10g/l, H2O, 20℃)
Water solubility	0.1 g/100 mL (20 ºC)
Merck	14,8926
BRN	908765
Stability	It's stable. Incompatible with strong oxidants.
InChIKey	HVBSAKJJOYLTQU-UHFFFAOYSA-N
LogP	-2.3 at 25℃
Cas database	121-57-3(CAS DataBase Reference)
NIST Chemical information	Benzenesulfonic acid, 4-amino-(121-57-3)
EPA Chemical information	Sulfanilic acid (121-57-3)

Uses and synthesis methods of p-aminobenzenesulfonic acid

Chemical property

White or off-white crystal. Hydrates lose water at 100 ° C, and anhydrates begin to decompose and carbonize at 280 ° C. The relative density is 1.485 (25/4). Slightly soluble in cold water, insoluble in ethanol, ether and benzene, significantly acidic, soluble in caustic soda solution and sodium carbonate solution.

use

It is mainly used for the manufacture of dyes, printing and dyeing auxiliaries and the prevention and control of wheat rust and used as spices, food coloring, medicine, whitening agents, pesticides and other intermediates, it can be used as a reference reagent, experimental reagent and chromatographic analysis reagent, for organic synthesis and chemical analysis process.

SulfanilicacidisatoxicmetaboliteofTartrazine (T007700). UsedasEhrlich holmium reaChemicalbookgent, fordetectingofnitrites. Antibact erial. Determination of ammonia, cerium, and nitrite, determination of aluminum, magnesium, potassium, sodium, iodine, iodide, and nitrite. Elemental analysis standards for carbon, hydrogen, nitrogen, oxygen and sulfur, determination of nitrite with 1-naphthylamine, testing of osmium and ruthenium, indirect determination of potassium through potassium nitrite, determination of serum bilirubin, soil analysis.

Production method

P-aminobenzenesulfonic acid can be obtained by the reaction of aniline and sulfuric acid to form a salt and then translocation.

category

pesticide

Toxicity classification

Low toxicity

Acute toxicity

Oral - rat LD50:12300 mg/kg

Stimulus data

Skin - Rabbit 500 mg /24 h mild; Eye - Rabbit 100 mg /24 h moderate

Flammability hazard characteristics

Combustion produces toxic nitrogen oxide and sulfur oxide gases

Storage and transportation characteristics

Warehouse ventilation and low temperature drying; Store and transport separately from food raw materials

Fire extinguishing agent

Dry powder, foam, sand

Dangerous goods mark	C,Xi
Hazard class code	36/38-43-34
Safety statement	26-36/37/39-45-37-24-36/37
Dangerous goods transport number	UN 2790 8/PG 3
WGK Germany	1
RTECS号	WP3895500
Spontaneous combustion temperature	>400 °C
TSCA	Yes
Customs code	29214210
Toxic substance data	121-57-3(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 12300 mg/kg

Risk profile

【 Health Hazard 】 Harmful to the body if ingested, inhaled or absorbed through the skin. Has a stimulating effect.

[Environmental hazards] It is harmful to the environment and can cause pollution to water and atmosphere.

[Explosion hazard] This product is non-combustible and irritant.

First aid measure

[Skin contact] Remove contaminated clothing and rinse with running water.

[Eye contact] Lift eyelid and rinse with running water or normal saline. Seek medical attention.

[Inhalation] Remove from scene to fresh air. Administer oxygen if breathing is difficult. Seek medical attention.

【 Ingestion 】 Drink enough warm water to induce vomiting. Seek medical attention.

Fire protection measures

[Dangerous characteristics] Decomposition by heat, releasing toxic gases such as nitrogen and sulfur oxides.

【 Harmful combustion products 】 Carbon monoxide, carbon dioxide, sulfide, nitrogen oxide.

[Fire extinguishing method] The fire personnel must wear the whole body fire protective clothing and extinguish the fire in the upwind. When extinguishing the fire, move the container from the fire to an open area as much as possible.

Leakage emergency treatment

[Emergency treatment] Isolate the contaminated area and restrict access. It is recommended that emergency personnel wear dust masks (full face masks) and protective clothing. Avoid dust, sweep it up carefully, place it in a bag and transfer it to a safe place. If a large amount of leakage, with plastic sheet, canvas cover. Collect and recycle or transport to waste disposal site for disposal.

Contact control/Personal protection

[Engineering control] Closed operation, local exhaust.

[Respiratory system protection] When the concentration of dust in the air exceeds the standard, a self-priming filter dust mask must be worn. In case of emergency rescue or evacuation, you should wear

Air breathing apparatus.

[Eye protection] Wear chemical safety glasses.

[Body protection] Wear protective work clothes.

[Hand protection] Wear rubber gloves.

[Other protection] After work, shower and change clothes. Pay attention to personal hygiene. Get regular checkups.

Deshangchemical Info

Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.