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N-Nitrosodimethylamine

N-Nitrosodimethylamine structure

CAS No:
62-75-9
Formula:
C2H6N2O
Chemical Name:
N-Nitrosodimethylamine
Synonyms:
Methanamine,N-methyl-N-nitroso-;Dimethylamine,N-nitroso-;N-Methyl-N-nitrosomethanamine;Dimethylnitrosamine;DMN;DMNA;N-Nitrosodimethylamine;N-Nitroso-N,N-dimethylamine;NDMA;NSC 23226
Categories:
Organic Chemistry > Amides

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Description

yellow liquid N-Nitrosodimethylamine is a yellow oily liquid. Faint, characteristic odor.

N-Nitrosodimethylamine Basic Attributes

Molecular Weight：

74.08

Exact Mass：

74.08

EC Number：

200-549-8

Characteristics

PSA：

32.7

XLogP3：

-0.57

Appearance：

N-nitrosodimethylamine is a yellow oily liquid with a faint characteristic odor. Boiling point 151-153°C. Can reasonably be expected to be a carcinogen. Used as an antioxidant, as an additive for lubricants and as a softener of copolymers. An intermediate in 1,1-dimethylhydrazine production.

Density：

1.0048 g/cm³ @ Temp: 20 °C

Melting Point：

<25 °C

Boiling Point：

151-153 °C

Flash Point：

142 °F

Refractive Index：

1.427

Water Solubility：

Miscible (Mirvish et al., 1976)

Storage Conditions：

2-8°C

Vapor Pressure：

5 mm Hg ( 20 °C)

Vapor Density：

2.56

Toxicity：

Oral-rat LD50: 37 mg/kg; Abdominal cavity-mouse LD50: 19 mg/kg

Flammability characteristics：

Combustible in case of fire; decomposes toxic nitrogen oxide fumes with high heat

Odor：

Faint, characteristic odor

Safety Information

Packing level：

III

Hazard category：

6.1(b)

Transport codes：

UN 3382 6.1/PG 1

wgk germany：

hazard class code：

45-25-26-48/25-51/53-39/23/24/25-23/24/25-11

safety instructions：

53-45-61-36/37-16

RTECS Number：

IQ0525000

Marks：

T+,N,T,F

Storage features：

Treasury is ventilated at low temperature and dry; stored separately from oxidants and food additives

Stability/Shelf Life：

Stability Stable, but light-sensitive. Combustible. Incompatible with strong oxidizing agents, strong bases, strong reducing agents.

Precautionary statement(s)：

P201-P210-P260-P280-P301 + P310-P311

Hazard Statements：

H225-H301 + H311 + H331-H350-H370

Toxicity

Toxicity class：

most toxic

N-Nitrosodimethylamine Use and Manufacturing

Methods of Manufacturing

245g of dimethylamine hydrochloride and hydrochloric acid were stirred and heated to 70-75°C, a slurry of 235g of sodium nitrite in 150ml of water was added, and hydrochloric acid was added to make the reactant just acidic. After the addition is completed, heat for 2h, then distill to near dryness, add water and evaporate to dryness, combine the distillate with 300g of potassium carbonate to saturate it, take the upper layer under reduced pressure and fractionate to obtain nearly 200g of N-nitrosodimethylamine, the yield is nearly 90 %.

Uses

Formerly in the production of rocket fuels; antioxidant; additive for lubricants; softener of copolymers.

Computed Properties

Molecular Weight:74.08
XLogP3:-0.6
Hydrogen Bond Acceptor Count:3
Exact Mass:74.048012819
Monoisotopic Mass:74.048012819
Topological Polar Surface Area:32.7
Heavy Atom Count:5
Complexity:34.6
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Dimethyl sulfoxide

Trimethylamine

Recommended Suppliers of N-Nitrosodimethylamine

Suqian City Hengliyuan Import and Export Trade Co., LTD Contact Supplier

CN
2 YRS

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N-Nitrosodimethylamine hly

Unit Price: $1 /MT EXW

CAS No.: 62-75-9

Grade: industrial Grade

Content: 98%

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