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Sulfamic acid

Product Name
Sulfamic acid
CAS No.
5329-14-6
Chemical Name
Sulfamic acid
Synonyms
AMINOSULFONIC ACID;SULPHAMIC ACID;AMIDOSULFONIC ACID;AMIDOSULFURIC ACID;sulfamic;Sulphamic;Aminosulfonic;Jumbo;BETZ 0254;famic acid
CBNumber
CB6411280
Molecular Formula
H3NO3S
Formula Weight
97.09
MOL File
5329-14-6.mol
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Sulfamic acid Property

Melting point:
215-225 °C (dec.) (lit.)
Boiling point:
-520.47°C (estimate)
Density 
2.151 g/cm3 at 25 °C
vapor pressure 
0.8Pa at 20℃
refractive index 
1.553
storage temp. 
Store below +30°C.
solubility 
water: soluble213g/L at 20°C
pka
-8.53±0.27(Predicted)
form 
Crystals or Crystalline Powder
color 
White
PH
1.2 (10g/l, H2O)
Odor
odorless
Water Solubility 
146.8 g/L (20 ºC)
Merck 
14,8921
Stability:
Stable.
InChIKey
IIACRCGMVDHOTQ-UHFFFAOYSA-N
LogP
0 at 20℃
CAS DataBase Reference
5329-14-6(CAS DataBase Reference)
NIST Chemistry Reference
Sulfamic acid(5329-14-6)
EPA Substance Registry System
Sulfamic acid (5329-14-6)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/38-52/53
Safety Statements 
26-28-61-28A
RIDADR 
UN 2967 8/PG 3
WGK Germany 
1
RTECS 
WO5950000
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
28111980
Hazardous Substances Data
5329-14-6(Hazardous Substances Data)
Toxicity
MLD orally in rats: 1.6 g/kg (Ambrose)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
SX1145
Product name
Sulfamic Acid
Purity
Practical
Packaging
45kg
Price
$898
Updated
2024/03/01
Sigma-Aldrich
Product number
8.14483
Product name
Amidosulfuric acid
Purity
for synthesis
Packaging
100g
Price
$32.4
Updated
2024/03/01
Sigma-Aldrich
Product number
8.14483
Product name
Amidosulfuric acid
Purity
for synthesis
Packaging
1kg
Price
$97.2
Updated
2024/03/01
Sigma-Aldrich
Product number
8.14483
Product name
Amidosulfuric acid
Purity
for synthesis
Packaging
25kg
Price
$366
Updated
2024/03/01
Sigma-Aldrich
Product number
1.00219
Product name
Amidosulfuric acid
Purity
EMPLURA?
Packaging
2.5kg
Price
$153
Updated
2024/03/01
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Sulfamic acid Chemical Properties,Usage,Production

Chemical Properties

Sulfamic acid is a white orthorhombic flaky crystal, odorless, non-volatile and non-hygroscopic. Soluble in water and liquid ammonia, slightly soluble in methanol, insoluble in ethanol and ether, also insoluble in carbon disulfide and liquid sulfur dioxide. Its aqueous solution has the same strong acid properties as hydrochloric acid and sulfuric acid, but its corrosiveness to metals is much lower than that of hydrochloric acid. The toxicity is extremely small, but it should not be in contact with the skin for a long time, and it should not enter the eyes.

Uses

Sulfamic acid is widely used in electroplating, hard-water scale reremovers, acidic cleaning agent, chlorine stabilizers, sulfonating agents, denitrification agents, disinfectants, flame retardants, herbicides, artificial sweeteners and catalysts.
Sulfamic acid is a precursor to sweet-tasting compounds. Reaction with cyclohexylamine followed by addition of NaOH gives C6H11NHSO3Na, sodium cyclamate.
Sulfamic acid is a water-soluble, moderately strong acid. An intermediate between sulfuric acid and sulfamide, it can be used as a precursor to sweet-tasting compounds, a therapeutic drug component, an acidic cleaning agent, and a catalyst for esterification.

Application

Sulfamic acid, the monoamide of sulfuric acid, is a strong inorganic acid. It is generally used in chemical cleaning processes like removal of nitrites, carbonate- and phosphate-containing deposits.
Sulfamic acid can be used as a catalyst in:
Friedlander quinoline synthesis.
Liquid Beckmann rearrangement for the synthesis of amides from ketoximes.
The preparation of α-aminophosphonates via a three-component reaction between aldehydes, amines, and diethyl phosphite.

Definition

ChEBI: Sulfamic acid is the simplest of the sulfamic acids consisting of a single sulfur atom covalently bound by single bonds to hydroxy and amino groups and by double bonds to two oxygen atoms. It is a strong acid, readily forming sulphamate salts, which is extremely soluble in water and normally exists as the zwitterion H3N+. SO3–.

Reactions

Sulfamic acid is a strong acid that reacts with many basic compounds. It is heated to above the melting point (209°C) under normal pressure to begin to decompose, and continues to be heated to above 260°C to decompose into sulfur trioxide, sulfur dioxide, nitrogen, hydrogen and water.
(1) Sulfamic acid can react with metals to form transparent crystalline salts. Such as:
2H2NSO3H+Zn→Zn(SO3NH2)2+H2.
(2) Can react with metal oxides, carbonates and hydroxides:
FeO+2HSO3NH2→Fe(SO3NH2)2+H2O2
CaCO3+2HSO3NH2→Ca(SO3NH2)2+H2O+CO23
Ni(OH)2+2HSO3NH2→Ni(SO3NH2)2+H2O.
(3) Can react with nitrate or nitrite:
HNO3+HSO3NH2→H2SO4+N2O+H2O2
HNO2+HSO3NH2→H2SO4+N2+H2O.
(4) Can react with oxidants (such as potassium chlorate, hypochlorous acid, etc.):
KClO3+2HSO3NH2→2H2SO4+KCl+N2+H2O2
2HOCl+HSO3NH2→HSO3NCl2+2H2O

General Description

Sulfamic acid appears as a white crystalline solid. Density 2.1 g / cm3. Melting point 205°C. Combustible. Irritates skin, eyes, and mucous membranes. Low toxicity. Used to make dyes and other chemicals. It is used as a raw material for the preparation of a synthetic sweetener i.e, sodium cyclohexylsulfamate.

Air & Water Reactions

Moderately soluble in water [Hawley].

Reactivity Profile

Sulfamic acid reacts exothermically with bases. Aqueous solutions are acidic and corrosive.

Hazard

Toxic by ingestion.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Flammability and Explosibility

Non flammable

Side effects

Dermatotoxin - Burning of the skin.
Toxic Pneumonia - Inflammation of the lungs caused by inhalation of metal fumes or toxic gases and vapours.

Toxicology

Sulfamic acid can be absorbed into the body through inhalation of its aerosols and ingestion, causing symptoms of coughing and sore throat upon inhalation; it is irritating to the skin and eyes with symptoms of redness, pain or burns; Inhaling sulfamic acid can irritate the nose and throat. High exposure to sulfamic acid can irritate the lungs. Higher exposures may cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency. sulfamic acid can cause nausea, vomiting and stomach pain. Repeated exposure to sulfamic acid may affect the liver and kidneys.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion. A human skin irritant. A corrosive irritant to skin, eyes, and mucous membranes. A substance that migrates to food from packaging materials. Violent or explosive reactions with chlorine, metal nitrates + heat, metal nitrites + heat, fuming HNO3. When heated to decomposition it emits very toxic fumes of SOx and NOx. See also SULFONATES.

Potential Exposure

Sulfamic acid is used in metal and ceramic cleaning, bleaching paper pulp; and textiles metal; in acid cleaning; as a stabilizing agent for chlorine and hypochlorite in swimming pools; cooling towers; and paper mills.

Shipping

UN2967 Sulfamic acid, Hazard class: 8; Labels: 8-Corrosive material.

Purification Methods

Crystallise NH2SO3H from water at 70o (300mL per 25g), after filtering, by cooling a little and discarding the first batch of crystals (about 2.5g) before standing in an ice-salt mixture for 20minutes. The crystals are filtered off by suction, washed with a small quantity of ice cold water, then twice with cold EtOH and finally with Et2O. Dry it in air for 1hour, then store it in a desiccator over Mg(ClO4)2 [Butler et al. Ind Eng Chem (Anal Ed) 10 690 1938]. For the preparation of primary standard material see Pure Appl Chem 25 459 1969.

Incompatibilities

The aqueous solution is a strong acid. Reacts violently with strong acids (especially fuming nitric acid), bases, chlorine. Reacts slowly with water, forming ammonium bisulfate. Incompatible with ammonia, amines, isocyanates, alkylene oxides; epichlorohydrin, oxidizers.

Sulfamic acid Preparation Products And Raw materials

Raw materials

FUMING SULFURIC ACID Sulfur dioxide Urea Sulfur trioxide Acetone oxime Sulfuric acid

Preparation Products

sodium nonylphenol polyoxyethylene ether sulfate Nickel bis(sulphamidate) Disperse Red 153 fatty alcohol ammonium sulfate Acesulfame AMIDO GREEN BLACK B TRIOXSALEN Methyl Orange Bensulfuron methyl Pigment Red 175 Acesulfame potassium Bromoxynil Ammonium sulfamate SULCOFURON-SODIUM MONOHYDRATE nonylphenyl polyoxyethylene ether sulfate triethanolamine COBALT (II) SULFAMATE Vadimezan Direct Black 56 Filth remover 2-Chlorobenzonitrile Irsogladine Sodium N-cyclohexylsulfamate Molasses Cleaning agent METOSULAM Disperse Yellow 104
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View Lastest Price from Sulfamic acid manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
sulfamic acid 5329-14-6
Price
US $1.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10 mt
Release date
2024-10-31
Hebei Yanxi Chemical Co., Ltd.
Product
Sulfamic acid 5329-14-6
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
100tons
Release date
2023-09-05
Hebei Chuanghai Biotechnology Co,.LTD
Product
Sulfamic acid 5329-14-6
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-23

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