Butyric anhydride

Butyric anhydride or butanoic anhydride is the chemical compound with the formula (CH3CH2CH2CO)2O. The molecule can be described as a condensation of two molecules of butyric acid with elimination of one water molecule (hence its name). Butyric anhydride is a clear colorless liquid that smells strongly of butyric acid, which is formed by its reaction to moisture in the air. Wikipedia

Substance Data

Hazardous Materials Table

(3) Hazard Class 8 Corrosive liquids	(4) Identification number UN 2739	(5) Packing Group III
(6) Labels
(7) Special Provisions (§172.102) ×Note: Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs. IB3 Authorized IBCs: Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite (31HZ1 and 31HA2, 31HB2, 31HN2, 31HD2 and 31HH2). Additional Requirement: Only liquids with a vapor pressure less than or equal to 110 kPa at 50 °C (1.1 bar at 122 °F), or 130 kPa at 55 °C (1.3 bar at 131 °F) are authorized, except for UN2672 (also see special provision IP8 in Table 2 for UN2672). Browse special provision IB3 T4 Minimum test pressure (bar) 2.65 Minimum shell thickness § 178.274(d)(2) Pressure-relief requirements Normal Bottom opening requirements § 178.275(d)(3) Browse special provision T4 TP1 The maximum degree of filling must not exceed the degree of filling determined by the following: Where: tr is the maximum mean bulk temperature during transport, and tf is the temperature in degrees celsius of the liquid during filling. Browse special provision TP1
(8) Packing Authorizations (§173.***) (8A) Exceptions 154 see 49 CFR §173.154 (8B) Non-bulk 203 see 49 CFR §173.203 (8C) Bulk 241 see 49 CFR §173.241
(9) Quantity Limits (9A) Passenger aircraft/rail 5 L (9B) Cargo aircraft only 60 L
(10) Vessel stowage (10A) Location A Stowage category “A” means the material may be stowed “on deck” or “under deck” on a cargo vessel or on a passenger vessel. Source: 49 CFR §172.101(k) (10B) Other 53 see 49 CFR §176.84 58 see 49 CFR §176.84 Source: 49 CFR §176.84

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Note: In this segregation and separation chart are HazMat of hazard class 8 considered depending if there are liquid. Currently HazMat Tool is not able to to check if a HazMat is liquid or not. Therefore it is assumed as liquid. See PHMSA Interpretation #09-0252.

Add to my HazMat & segregation check

Hazard class	8	7	6.1	5.2	5.1	4.3	4.2	4.1	3	2.3B	2.3A	2.2	2.1	1.6	1.5	1.4	1.3	1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8

	Must not be loaded, transported, or stored together in the same vehicle or facility.
	May be loaded, transported, or stored together.
	May be loaded, transported, or stored together only with restrictions.